Ethernet

Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 What Is Ethernet?
• A local-area network (LAN) protocol developed by Xerox
Corporation in cooperation with DEC and Intel in 1976
• Ethernet uses a bus or star topology and supports data transfer
rates of 10/100/1000 Mbps
• The Ethernet specification served as the basis for the IEEE 802.3
standard, which specifies the physical and lower software layers
• Ethernet uses the CSMA/CD access method to handle
simultaneous demands
• Ethernet defines the lower two layers of the OSI Reference Model
 WW LAN NIC Market
System Units (K)
100,000

80,000

60,000

40,000

20,000

0
1998 1999 2000 2001 2002 2003

Ethernet Fast Ethernet Gigabit Ethernet

Source: Dataquest
Ethernet: 10 Mbps
Fast Ethernet : 100 Mbps
Gigabit Ethernet : 1 Gbps
 WW LAN NIC Market
Revenue ($M)
$2,100
$1,800
$1,500
$1,200
$900
$600
$300
$0
1998 1999 2000 2001 2002 2003

Ethernet Fast Ethernet Gigabit Ethernet

Source: Dataquest
Ethernet: 10 Mbps
Fast Ethernet : 100 Mbps
Gigabit Ethernet : 1 Gbps
 WW LAN NIC Market
ASSP & ASIC Revenue ($M)
$500

$400

$300

$200

$100

$0
1998 1999 2000 2001 2002 2003

ASSP ASIC

Source: Dataquest
 WW LAN Hub Market
System Port (K)
60,000
50,000
40,000

30,000
20,000
10,000
0
1998 1999 2000 2001 2002 2003

Ethernet Fast Ethernet

Source: Dataquest
Ethernet: 10 Mbps
Fast Ethernet : 100 Mbps
Gigabit Ethernet : 1 Gbps
 WW LAN Hub Market
Revenue ($M)
$1,200
$1,000

$800
$600
$400

$200

1998 1999 2000 2001 2002 2003

Ethernet Fast Ethernet
Source: Dataquest
Ethernet: 10 Mbps
Fast Ethernet : 100 Mbps
Gigabit Ethernet : 1 Gbps
 WW LAN Hub Market
ASSP & ASIC Revenue ($M)
$350
$300
$250
$200
$150
$100
$50
$0
1998 1999 2000 2001 2002 2003

ASSP ASIC
Source: Dataquest
 WW LAN Switch Market
System Port (K)
160,000
140,000
120,000
100,000
80,000
60,000
40,000
20,000
0
1998 1999 2000 2001 2002 2003

Ethernet Fast Ethernet Gigabit Ethernet

Source: Dataquest
Ethernet: 10 Mbps
Fast Ethernet : 100 Mbps
Gigabit Ethernet : 1 Gbps
 WW LAN Switch Market
Revenue($M)
$10,000

$8,000

$6,000

$4,000

$2,000

$0
1998 1999 2000 2001 2002 2003

Ethernet Fast Ethernet Gigabit Ethernet

Source: Dataquest
Ethernet: 10 Mbps
Fast Ethernet : 100 Mbps
Gigabit Ethernet : 1 Gbps
 WW LAN Switch Market
ASSP & ASIC Revenue($M)
$1,000

$800

$600

$400

$200

$0
1998 1999 2000 2001 2002 2003

ASSP ASIC
Source: Dataquest
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 MAC Types
• There are two Media Access Control(MAC) protocols defined for
Ethernet:
– Half-Duplex and Full-Duplex
• Half-Duplex is the traditional form of Ethernet that uses the
CSMA/CD protocol
• Full-Duplex bypasses the CSMA/CD protocol
• Full-duplex mode allows two stations to simultaneously exchange
data over a point to point link that provides independent transmit
and receive paths
 MAC Types (Half-Duplex)

• Refers to the transmission of data in just one

direction at a time
• Half-Duplex Ethernet is the traditional form of
Ethernet that uses the CSMA/CD
• Half duplex Ethernet assumes that all the
"normal" rules of Ethernet are in effect on the
local network
 Carrier Sense Multiple Access
Collision Detect(Half-Duplex)
• The network is monitored for presence of a transmitting station
(carrier sense)
• The transmission is deferred if an active carrier is detected.
– The station continues to monitor the network until the carrier
ceases.
• If an active carrier is not detected, and the period of no carrier is
equal to or greater than the interframe gap, then the station
immediately begins transmission of the frame
 Carrier Sense Multiple Access
Collision Detect (Half-Duplex)
• While the transmitting station is sending the frame, it monitors the
medium for a collision
• If a collision is detected, the transmitting station stops sending the
frame data and sends a 32-bit "jam sequence
– The sequence jam is transmitted to ensure that the length of
the collision is sufficient to be noticed by the other transmitting
stations
• After sending the jam sequence the transmitting station waits a
random period of time
– This process is called "backoff"
 Carrier Sense Multiple Access
Collision Detect (Half-Duplex)
• If repeated collisions occur, then transmission is repeated
– But the random delay is increased with each attempt
• This process repeats until a station transmits a frame without
collision
• Once a station successfully transmits a frame, it clears the
collision counter it uses to increase the backoff time after each
repeated collision
 CSMA/CD Flow
Station is ready
to send
New Attempt Wait according to
Backoff Strategy

Sense Channel
Channel Busy

Channel Free

Transmit data & Collision Detected Transmit Jam

sense channel Signal

No Collision Detected

Transmit Complete
Variations of CSMA Protocol
(Half-Duplex)
• 1- persistent CSMA
– When a station has frames to transmit, it first listens to the
channel, if the channel is idle, the frame is sent
– If the channel is busy, the station waits and transmit its frame
as soon as the channel is idle
– If a collision occurs, the stations waits a random amount of
time and starts all over again
– The station transmits with a probability of 1 whenever it finds
the channel idle
Variations of CSMA Protocol
(Half-Duplex)
• Non-persistent CSMA
– When the channel is busy, the station simply gives up and tries
at a later time
• p-persistent CSMA
– When the channel is busy, the station will keep listening until
the channel becomes idle (like 1- persistent)
– Then the station transmits the frame with a probability of p
– The station backs off with the probability of q = 1 - p
 Slot Time (Half-Duplex)
• The "slot time" is a key parameter for half-duplex Ethernet network
operation
• It is defined as 512 bit times for Ethernet networks operating at
10/100 Mbps, and 4096 bit times for Gigabit Ethernet
– The 512 bit slot time establishes the minimum size of an
Ethernet frame as 64-bytes
– The 4096 bit slot time establishes the minimum size of a
Gigabit Ethernet frame as 512-bytes
• The minimum transmission time for a complete frame must be at
least one slot time
 Slot Time (Half-Duplex)
• The slot time establishes a limit on the size of a network in terms
of the maximum cable segment lengths and number of repeaters
that can be in a path
– If the size of a network grows too big, a phenomenon known
as "late collisions" can occur
– Late collisions are considered a failure in the network
• The slot time ensures that if a collision is going to occur, it will be
detected within the first 512 bits (4096 for Gigabit Ethernet) of the
frame transmission
 MAC Types (Full-Duplex)
• Based on the IEEE 802.3x standard, “Full-Duplex” MAC type
bypasses the CSMA/CD protocol
• Full-duplex mode allows two stations to simultaneously exchange
data over a point to point link
• The aggregate throughput of the link is effectively doubled
– A full-Duplex 100 Mb/s station provides 200 Mb/s of bandwidth
 MAC Types (Full-Duplex)
• Full-Duplex operation is supported by:
– 10-Base-T, 10Base-FL, 100Base-TX, 100Base-FX, 100Base-
T2, 1000Base-CX, 1000Base-SX, 1000Base-LS, and
1000Base-T.
• Full-Duplex operation is NOT supported by:
– 10Base5, 10Base2, 10Base-FP, 10Base-FB, and 100Base-T4.
• Full-Duplex operation is restricted to point to point links connecting
exactly two stations
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
The OSI Reference Model
Application Protocol
L7: APDU
L7:Application
Application L7:Application
L7: Application

Presentation Protocol
L6: PPDU
L6:Presentation
Presentation L6:Presentation
L6: Presentation

Session Protocol
L5: SPDU
L5:Session
Session L5:Session
L5: Session

Transport Protocol
L4:
L4:Transport
Transport L4:Transport
L4: Transport TPDU

Network Layer Protocol

L3:
L3:Network
Network L3:Network
L3: Network Packet

Data Link Layer Protocol

L2:
L2:Data
DataLink
Link L2:Data
L2: DataLink
Link Frame

Physical Layer Protocol

L1: Bit
L1:Physical
Physical L1:Physical
L1: Physical

Host A Host B
 OSI Model
• The Open Systems Interconnect (OSI) reference model outlines 7
layers for an ideal network architecture.
• Physical Layer
– The nuts and bolts layer, where the cable, connector and
signaling specifications are defined
– Describes the electrical, mechanical, and functional interface
to the carrier L7:
L7:Application
Application
– It includes: L6:
L6:Presentation
Presentation
L5:
L5:Session
• Voltages and pulse coding of bits L4:
Session
L4:Transport
Transport
• Media and media interface L3:
L3:Network
Network
• Line discipline (full or half duplex) L2:
L2:Data
DataLink
Link
L1:
L1:Physical
Physical
• Pin Assignments
OSI Model- Data Link Layer
– Gets data packets on and off the wire
– Does error detection and correction and retransmission
– The primary purpose of the Data Link Layer is to provide error-
free transmission of information between two end stations
– The MAC (Medium Access Control) on the lower half, deals
with getting the data on and off the wire
– The LLC (Logical Link Control) on the upper half, does the error
checking L7:
L7:Application
Application
L6:
L6:Presentation
Presentation
L5:
L5:Session
Session
L4:
L4:Transport
Transport
L3:
L3:Network
Network
L2:
L2:Data
DataLink
Link
L1:
L1:Physical
Physical
 OSI Model (cont.)
• Network Layer
– The Network Layer controls the operation of the network or
sub-network
– Routing and flow control are performed here
– This is the lowest layer of the OSI model that can remain
ignorant of the physical network
– The general functions are: L7:
L7:Application
Application
L6:
L6:Presentation
• Addressing messages L5:
Presentation
L5:Session
Session
• Routing messages L4:
L4:Transport
Transport
• Controlling congestion L3:
L3:Network
Network
L2:
L2:Data
DataLink
Link
• Translating addresses L1:
L1:Physical
Physical
• Counting packets
 OSI Model (cont.)
• Transport Layer
– Ensures the performance of the lower 3 layers
– It provides a transparent, logical data stream between the
end user and the network service
– This is the lower layer that provides local user services
– It provides the session layer with reliable message transfer
facilities
L7:
L7:Application
Application
L6:
L6:Presentation
Presentation
L5:
L5:Session
Session
L4:
L4:Transport
Transport
L3:
L3:Network
Network
L2:
L2:Data
DataLink
Link
L1:
L1:Physical
Physical
 OSI Model (cont.)
• Session Layer
– Control the communications between applications across a
network
– Testing for out-of-sequence packets and handling two-way
communication are handled here

L7:
L7:Application
Application
L6:
L6:Presentation
Presentation
L5:
L5:Session
Session
L4:
L4:Transport
Transport
L3:
L3:Network
Network
L2:
L2:Data
DataLink
Link
L1:
L1:Physical
Physical
 OSI Model (cont.)
• Presentation Layer
– The Presentation Layer formats the data to be presented to
the Application Layer
– Differences in data representation are dealt with at this level
• For example, UNIX-style line endings (CR only) might be
converted to MS-DOS style (CRLF), or EBCIDIC to ASCII
character sets L7:
L7:Application
Application
– It can be viewed as the translator for the network L6:
L6:Presentation
Presentation
– It also does: L5:
L5:Session
Session
L4:
L4:Transport
Transport
• Encryption L3:
L3:Network
Network
• Encoding L2:
L2:Data
DataLink
Link
L1:
L1:Physical
• Compression of data Physical
 OSI Model (cont.)

• Applications Layer
– Where the user applications software lies
– Handles issues such as:
• File access and transfer
• Virtual terminal emulation L7:
L7:Application
Application
L6:
L6:Presentation
• Inter process communication L5:
Presentation
L5:Session
Session
• Electronic Mail L4:
L4:Transport
Transport
• Network Management L3:
L3:Network
Network
L2:
L2:Data
DataLink
Link
L1:
L1:Physical
Physical
 OSI Model (Summary)
O SI Layer Purpose F eatures Benefits
Phy sical Electrical • Sup port for vario us media • In stallatio n
In tercon nectio n • Performance
• Reliability
L ink Med ia Access and • Dem ocratic med ia access • Lo w latency fo r critical no des, u niformly democratic
Framin g • scheme an d priority access fo r all o ther no des
• Large Packet size • Sup port for discrete, analog , as well as con figu ration
and diagn ostic data withou t fragmentatio n an d
perfo rmance impact
Net wo rk Des tination Addressing • Sup port for ro uters • Size and interconnectivity –s upp ort for large n etworks
• Reliability – traffic filterin g, segm en ting network into
function al clusters , while allowing transp arent
commu nication acro ss clu sters wh en need ed
• In stallatio n ease and reliability
• Reliability – crating additio nal p ath s between
commu nicating no des
T ransp ort En d-To -E nd Reliability • Unackno wledg ed s ervice, with • Optimal co mmu nicatio n to a larg e nu mber of devices,
and withou t repeat or devices u nable to ackno wled ge. M ain tain s n etwork
• Ack nowledged s ervice reliability in these co ndition s
• M ulti cast service with and • Reliable d eliv ery
withou t ackno wl ed gment from • Performance and reliab ilit y
each n ode, and th e ability to re-
tran smit selectively
• Duplicate d etection
Session Remote Actio ns • Requ est/R esp on se • Reliability – to en sure ackno wled gement of action
• Reliability – to en sure sen der legitimacy
Pres en tatio n Data In terpretatio n • Standard Data ty pe • Ability to exchange and interpret standard data
reg ardless of ap plicatio ns
Application Senso r/Actu ato r • High level stan dard o bject • Represen tatio n of any s en sor , actuato r, o r controller
Appellation interface definition s interface as ag gregatio ns of h igh level o bjects
comp atib ility • Standard co nfiguration • In terpretab ility with s tan dard sens or interface
prop erties
 Data Transmission
Sending Data Receiving
L7:
L7:Application
Application Application Protocol AH Data L7:Application
L7: Application

L6:
L6:Presentation L6:Presentation
Presentation
Presentation Presentation Protocol PH AH Data L6:

L5:
L5:Session
Session L5:Session
Session
Session Protocol SH PH AH Data L5:

L4:
L4:Transport L4:Transport
Transport
Transport Transport Protocol TH SH PH AH Data L4:

L3:
L3:Network L3:Network
Network
Network Network Protocol NH TH SH PH AH Data L3:

L2:
L2:Data
DataLink L2:Data
DataLink
Link
Link Data Link Pro. DH NH TH SH PH AH Data L2:

L1:
L1:Physical
Physical Physical Layer Protocol
L1:Physical
L1: Physical
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 What is TCP/IP?

• TCP/IP = Transmission Control Protocol/Internet Protocol

• Is the basic communication language or protocol of the Internet
• It can also be used as a communications protocol in the private
networks ( intranets and in extranets)
• TCP/IP is a two-layered program
– Transmission Control Protocol - Manages the assembling of a
message or file into smaller packets
– Internet Protocol- Handles the address part of each packet so
that it gets to the right destination
What is TCP/IP Reference
Model?
TCP/IP: Transmission Control Protocol / Internet Protocol

Application Telnet FTP SMTP DNS HTTP

Protocols
Transport TCP UDP

Internet IP
Networks

Host-to Packet Point to

ARPANET SATNET Ethernet
Network Radio Point
 What is TCP/IP Reference
Model?
• Application Layer
– It contains all the higher level protocols such as Telnet, File Transfer (FTP),
Simple Mail Transfer(SMTP), Domain Name Service(DNS), Hypertext
Transfer (HTTP)
• Transport Layer
– Designed to allow peer entities on the source and destination hosts carry on
a conversation
– TCP and UDP(end-to-end Protocols)defined here
• TCP(Transmission Control) manages the assembling of a message or
file into smaller packets that are transmitted over the Internet
• UDP(User Datagram) - Connectionless protocol for applications that do
not want TCP’s sequencing or flow control( Speech or Video)
 What is TCP/IP Reference
Model?
• Internet Layer
– Defines an official packet format and protocol called
IP(Internet Protocol)
– Internet Layer delivers IP packets to where they are
supposed to go(packet routing)
• Host-to-Network Layer
– Host connects to the network using relevant protocols
so it can send IP packets over it
OSI & TCP/IP
OSI TCP/IP
L7: Application
L7:Application
Application Application

L6: Not presented

L6:Presentation
Presentation

L5: Not
Notpresented
L5:Session
Session presented

L4: Transport
L4:Transport
Transport Transport

L3: Internet
L3:Network
Network Internet

L2:
L2:Data
DataLink
Link
Host-To-Network
Host-To-Network
L1:
L1:Physical
Physical
Interconnection Devices
L7:
L7:Application
Application L7:Application
L7: Application

L6:
L6:Presentation
Presentation L6:Presentation
Presentation
L6:
Gateway
L5:
L5:Session
Session L5:Session
Session
L5:

L4:
L4:Transport
Transport L4:Transport
L4: Transport

L3:
L3:Network
Network Router L3:Network
L3: Network

L2:
L2:Data
DataLink
Link Switch/Bridge L2:Data
L2: DataLink
Link

L1:
L1:Physical
Physical Hub/Repeater L1:Physical
L1: Physical

Host A Host B
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
Ethernet (IEEE802.3) Frames
Preamble - A series of alternating 1's and 0's used by the Ethernet
62 bits receiver to acquire bit synchronization.

Start Of Frame Delimiter - Two consecutive 1 bits used to acquire byte

2 bits alignment.

Destination Ethernet Address - Address of the intended receiver.

6 bytes
The broadcast address is all 1's.

6 bytes Source Ethernet Address -The unique Ethernet address of the

sending station.
Length or Type field - For IEEE 802.3 this is the number of bytes of data.
2 bytes For Ethernet I&II this is the type of packet.

46 to
1500 Data - Short packets must be padded to 46 bytes .
Bytes

Frame Check Sequence - The FCS is a 32 bit CRC calculated using the
4 bytes AUTODIN II polynomial.
 Ethernet (IEEE 802.3)
Frames
• Preamble
– A sequences of 64 bits used for synchronization
– Give components in the network time to detect the presence of
a signal
– Begin reading the signal before the frame data arrives
• Destination & Source MAC Addresses
– The Destination MAC Address field identifies the station or
stations that are to receive the frame
– The Source MAC Address identifies the station that originated
the frame
 Ethernet (IEEE 802.3) Frames
• Length/Type
• If the value of this field is less than or equal to 1500, then the
Length/Type field indicates the number of bytes in the subsequent
MAC Client Data field
– If the value of this field is greater than or equal to 1536, then
the Length/Type field indicates the nature of the MAC client
protocol (protocol type)
• MAC Client Data
– Contains the data transferred from the source station to the
destination station or stations
– If the size < 46 bytes, then use of the subsequent "Pad" field
is necessary to bring the frame size up to the minimum length.
 Ethernet (IEEE 802.3)
Frames
• Pad
– If necessary, extra data bytes are appended in this field to
bring the frame length up to its minimum size
• Frame Check Sequence
– Contains a 4-byte cyclical redundancy check (CRC) value
used for error checking
– A source station performs CRC when assembling a MAC
frame
• from the Destination MAC Address through the Pad fields
– A destination station performs CRC when receiving a frame
 Ethernet (IEEE 802.3)
Frames
• Interframe Gap (IFG)
– A minimum idle period between transmission of
Ethernet frames
– Provides a brief recovery time between frames to
allow devices to prepare for reception of the next
frame
– The minimum interframe gap is 96 bit times
• = 9.6 microseconds for 10 Mb/s Ethernet
• = 960 nanoseconds for 100 Mb/s Ethernet
• = 96 nanoseconds for 1 Gb/s Ethernet
 Ethernet Frame Format
Extensions
• VLAN Tagging
– Frame format extensions to support Virtual Local Area Network
(VLAN) Tagging
– The VLAN protocol permits insertion of an identifier, or "tag",
into the Ethernet frame format
– VLAN Tagging provides various benefits
• Easing network administration
• Allowing formation of work groups
• Enhancing network security
– The 4-byte VLAN tag is inserted between the “Source” MAC
Address field and the “Length/Type” field
 Ethernet Frame Format
Extensions
• Extension Field
– Added to the end of the Ethernet frame to ensure it
would be long enough for collisions to propagate to all
stations in the network
– The extension field is appended as needed to bring
the minimum length of the transmission up to 512
bytes
– It is required only in half-duplex mode, as the collision
protocol is not used in full-duplex mode
 Ethernet Frame Format
Extensions
• Frame Bursting
– Optionally allows a station to transmit a series of frames
without relinquishing control of the transmission medium
– Burst mode applies to half-duplex mode only
– It improves the performance of Gigabit Ethernet when
transmitting short frames
• Jumbo Frames
– Increase the maximum size of the MAC Client Data field from
1500-bytes to 9000-bytes
• Larger frames would provide a more efficient use of the
network bandwidth while reducing the number of frames
that have to be processed.
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 Ethernet PHY
Manchester 10 Mb/s TX
Chip Board
Encode Filter

4B/5B S crambler Transmitter

M 125 MHz
Auto TX
I Negotiation 25 MHz
Freq S ynch
20 MHz
I
Baseline Adoptive
5B/4B Descrambler

+
Restore Equalization

Clk 10Clk
Recovery Recovery

Manchester
Decoder Link Polarity

Analog
Digital
 IEEE 802.3 PHY Specifications
Standard IEEE Data Rate Medium Topology Max. Cable Length
Half Duplex Full Duplex
1Base5 802.3e 1 Mb/s Two pairs of twisted telephone cable S tar 250M N/A
10Base5 802.3 10Mb/s Single 50-ohm coaxial cable (thick Ethernet) Bus 500 M N/A
10Base2 802.3a 10Mb/s Single 50-ohm RG 58 coaxial cable (thin Ethernet) Bus 185M N/A
10Broad36 802.3b 10Mb/s Single 75-ohm CATV broadband cable Bus 1800M N/A
FOIRL 802.3d 10Mb/s Two Optical Fibers S tar 1000M >1000
10Base-T 802.3i 10Mb/s Two pairs of 100-ohm Category 3 or better UTP cable S tar 100M 100M
10Base-FL 802.3j 10Mb/s Two optical fibers S tar 2000M >2000M
10Base-FB 802.3j 10Mb/s Two Optical Fibers S tar 2000M N/A
10Base-FP 802.3j 10Mb/s Two Optical Fibers S tar 1000M N/A
100Base-TX 802.3u 100Mb/s Two pairs of 100-ohm Category 5 UTP cable S tar 100M 100M
100Base-FX 802.3u 100Mb/s Two Optical Fibers S tar 412M 2000M
100Base-T4 802.3u 100Mb/s Four pairs of 100-ohm Category 3 or better UTP cable S tar 100M N/A
100Base-T2 802.3y 100Mb/s Two pairs of 100-ohm Category 3 or better UTP cable S tar 100M 100M
1000Base-LX 802.3z 1Gb/s Long wavelength laser (1300nm) over 62.5um multi-mode fiber S tar 316M 550M
1000Base-LX 802.3z 1Gb/s Long wavelength laser (1300nm) over 50um multi-mode fiber S tar 316M 550M
1000Base-LX 802.3z 1Gb/s Long wavelength laser (1300nm) over 10um Single mode fiber S tar 316M 5000M
1000Base-SX 802.3z 1Gb/s Short wavelength laser (850nm) over 62.5um multi mode fiber S tar 275M 275M
1000Base-SX 802.3z 1Gb/s Short wavelength laser (850nm) over 50um multi mode fiber S tar 316M 550M
1000Base-CX 802.3z 1Gb/s Specialty shielded balanced copper jumper cable assemblies S tar 25M 25M
1000Base-T 802.3ab 1Gb/s Four pairs of 100-ohm Category 5 or better cable S tar 100M 100M
 10Base5 Overview
• Transmission Rate:10 Mb/s(full-duplex not supported)
• Cable Type: A single "thick" (10mm) coaxial cable with
50 ± 2 ohms impedance
• Max. Segment Length: 500 meters (1640 feet)
• Max. TX Cable Length: 50 meters (164 feet)
• Max. # of TX / Segment: 100
• Connector Technology: N-type coaxial connectors,
barrel connectors, & terminators
• Signal Encoding: Manchester encoding
 10Base2 Overview
• Transmission Rate:10 Mb/s(full-duplex not supported)
• Cable Type: A single "thin" (5mm) coaxial cable with 50
± 2 ohms impedance
• Max. Segment Length:185 meters (606.9 feet)
• Max. Spacing Between Stations: 0.5 meters (164 feet)
• Max. # of TX / Segment: 30
• Connector Technology: BNC Tee coaxial connectors,
barrel connectors, & terminators
• Signal Encoding: Manchester encoding
 10BaseT Overview
• Transmission Rate: 10 Mb/s (20 Mb/s in optional full duplex
mode)
• Cable Type:Two pairs of Category 3 or better
unshielded twisted pair (UTP) cabling
– 100-ohm impedance rating
• Max. Segment Length:100 meters (328 feet)
• Max. # of TX / Segment: 2
• Connector Technology: RJ-45 style modular jack
• Signal Encoding: Manchester encoding
 10Broad36 Overview
• Transmission Rate: 10 Mb/s (full-duplex not supported)
• Cable Type: Single 75-ohm CATV broadband cable
• Max. Segment Length: 1800 meters (5905 feet)
• Maximum Total Span: 3600 meters (11811 feet)
• Signal Encoding: Modulated radio frequency (RF)
 10Base-FL Overview
• Transmission Rate : 10 Mb/s (20 Mb/s in optional full-
duplex mode)
• Cable Type: Two multi-mode fiber optic cables, typically
62.5/125 fiber, 850 nanometer light wavelength
• Max. Segment Length: 2000 meters (6561 feet)
• Max. # of TX per Segment: 2
• Connector Technology : ST connector (BFOC/2.5)
• Signal Encoding: Manchester encoding
 100BaseTX Overview
• Transmission Rate: 100 Mb/s (200 Mb/s in optional full-
duplex mode)
• Cable Type: Two pairs of Category 5 unshielded twisted
pair (UTP) cabling, 100-ohm impedance rating
• Max. Segment Length: 100 meters (328 feet)
• Max. # of TX per Segment: 2
• Connector Technology: RJ-45 style modular jack (8-pins)
for UTP cabling
• Signal Encoding: 4B/5B
 100BaseFX Overview
• Transmission Rate:100 Mb/s (200 Mb/s in FD mode)
• Cable Type:Two multi-mode optical fibers (MMF),1300
nanometer light wavelength
• Max. Segment Length: 412 meters (Half-Duplex), 2000
meters (Full-Duplex)
• Max. # of TX/ Segment: 2
• Connector Technology: Duplex SC connector preferred,
ST and FDDI MIC connectors also permitted
• Signal Encoding: 4B/5B
 100BaseT4 Overview
• Transmission Rate:100 Mb/s(full-duplex not supported)
• Cable Type: Four pairs of Category 3 or better
unshielded twisted pair (UTP) cabling ,100-ohm
impedance rating
• Max. Segment Length: 100 meters (328 feet)
• Max. # of TX/ Segment: 2
• Connector Technology: RJ-45 style modular jack
• Signal Encoding: 8B6T
 100BaseT2 Overview
• Transmission Rate: 100 Mb/s (200 Mb/s in optional full-
duplex mode)
• Cable Type: Two pairs of Category 3 unshielded twisted
pair (UTP) cabling, 100-ohm impedance rating
• Max. Segment Length: 100 meters (328 feet)
• Max. # of TX/ Segment: 2
• Connector Technology: RJ-45 style modular jack (8-pins)
• Signal Encoding: PAM5x5
 1000BaseLX Overview
• Transmission Rate: 1000 Mb/s (2000 Mb/s in FD mode)
• Cable Types:
– Two 62.5/125 or 50/125 multi-mode optical fibers (MMF)
– Two 10 micron single mode optical fibers (SMF)
• Maximum Segment Length:
– Half-Duplex MMF & SMF: 316 meters (1036 ft)
– Full-Duplex MMF: 550 meters (1804 ft)
– Full-Duplex SMF: 5000 meters (16,404 ft)
• Connector Technology: Duplex SC connector
• Signal Encoding: 8B/10B
 1000BaseSX Overview
• Transmission Rate:1000 Mb/s (2000 Mb/s in FD mode)
• Cable Types: Two 62.5/125 or 50/125 multi-mode optical fibers,
770 to 860 nanometer light wavelength
• Maximum Segment Length:
– Half-Duplex 62.5/125: 275 meters (902 ft)
– Half-Duplex 50/125: 316 meters (1036 ft)
– Full-Duplex 62.5/125: 275 meters (902 ft)
– Full-Duplex 50/125: 550 meters (1804 ft)
• Max. # of TX/ Segment: 2
• Signal Encoding: 8B/10B
 1000BaseT Overview
• Transmission Rate:1000 Mb/s (2000 Mb/s in FD mode)
• Cable Types:4-pairs of Category 5 or better cabling
– 100-ohm impedance rating
• Max. Segment Length: 100 meters (328 ft)
• Max. # of TX/ Segment: 2
• Connector Technology: 8-Pin RJ-45 connector
• Signal Encoding: PAM5
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 Ethernet MAC
• Provides all functions necessary to attach an Ethernet
physical layer to the host interface
• Any physical layer chip that supports the MII interface
standard can attach to the 10/100 MAC
Processor

Host Interface

Statistic
FIFO
Generator

10/100 MAC

Ethernet PHY
 Ethernet MAC
• The 10/100 MAC provides all functions necessary to connect to
the host bus
• The 10/100 MAC provides:
– Both bus master and slave functions
– Host buffer chaining capability for increased system
performance
– Internal FIFO management necessary for efficient bus
utilization
– The MAC (Medium Access Control) is on the lower half of the
Data Link Layer which deals with getting the data on and off
the wire
 Ethernet MAC
Ethernet MAC

Tx Tx Data Flow
Buffer Transmit
MAC
Handler
Management
Register Media
Counter PHY
Independent
Interface
Receive
Rx Rx Data Flow MAC
Buffer Handler

Address
Match

Serial
Interface
• Introduction
Agenda
• Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 Ethernet Cabling(Twisted Pair)

• Twisted Pair Cables

– Pairs of wires are twisted around one another
– Each pair consists of two insulated copper wires
twisted together
– High quality twisted pair cables have about 1 to 3
twists per inch.
– Twisted pair cables are used with the following
Ethernet physical layers:
• 10Base-T, 100Base-TX, 100Base-T2, 100Base-T4, and
1000Base-T
 Ethernet Cabling (TP)
• Unshielded Twisted Pair (UTP)
– Category 3 - 100 ohm impedance, supports transmission at
frequencies up to 16 MHz
• May be used with 10Base-T, 100Base-T4, and 100Base-
T2
– Category 4 - 100 ohm impedance, supports transmission at
frequencies up to 20 MHz
• May be used with 10Base-T, 100Base-T4, and 100Base-
T2
– Category 5 - 100 ohm impedance,supports transmission at
frequencies up to 100 MHz
• May be used with 10Base-T, 100Base-T4, 100Base-T2,
and 100Base-TX
 Ethernet Cabling (TP)
– Category 5e - it has improved specifications for NEXT (Near
End Cross Talk), PSELFEXT (Power Sum Equal Level Far
End Cross Talk), and Attenuation
• Targeted for 1000Base-T, but also supports 10Base-T,
100Base-T4, 100Base-T2, and 100BaseTX.
– Category 6 - Category 6 is a proposed standard that aims to
support transmission at frequencies up to 250 MHz over 100
ohm twisted pair
– Category 7 - Category 7 is a proposed standard that aims to
support transmission at frequencies up to 600 MHz over 100
ohm twisted pair
 Ethernet Cabling (TP)
• Screened Twisted Pair (ScTP)
– ScTP is a 4-pair 100 ohm UTP
– It has a single foil or braided screen surrounding all four pairs
in order to minimize EMI radiation and susceptibility to outside
noise.
– ScTP can be viewed as a shielded version of the Category 3,
4, & 5 UTP cables
• Shielded Twisted Pair Cabling (STP)
– The twisted pairs in 150 ohm STP are individually wrapped in a
foil shield and enclosed in an overall outer braided wire shield
• It minimizes EMI radiation and susceptibility to crosstalk
 Ethernet Cabling (Coaxial)

• Coaxial Cables
– A solid center conductor is surrounded by an
insulating spacer
• insulating spacer in turn is surrounded by a tubular outer
conductor (usually a braid, foil or both)
– The entire assembly is then covered with an
insulating and protective outer layer
– Coaxial cables have a wide bandwidth and are
capable of carrying many data, voice, and video
conversations simultaneously
 Ethernet Cabling (Coaxial)
• Thicknet
– Thicknet is the 50-ohm "thick" (10mm) coaxial cable used with
Ethernet 10Base5 networks
– Includes a "mark" every 2.5 meters to indicate proper
placement of the 10Base5 transceivers used to connect
stations to the network
– The standard allows a 10Base5 coaxial cable segment to be
up to 500 meters in length
– Up to 100 transceivers may be connected to a single segment
at any multiple of 2.5 meters apart
– 10Base5 coaxial cable segments are built using "N-type"
connectors
 Ethernet Cabling (Coaxial)
• Thinnet
– Thinnet is the 50-ohm "thin" (5mm) coaxial cable used with
Ethernet 10Base2 networks
– It supports only a 185 meter maximum segment length (vs..
500 meters for 10Base5) and a maximum of 30 stations per
cable segment (vs. 100 for 10Base5)
– 10Base2 transceivers (MAUs) are connected to the Thinnet
cable segment through a "BNC Tee" connector
– Each end of a 10Base2 coaxial segment must be terminated
with a BNC 50-ohm terminator

Outer Jacket Braid Dielectric Center Conductor

 Ethernet Cabling (Coaxial)
• CATV
– A 75 ohm coaxial cabling commonly known for its use in
transmission of Cable TV signals
– It is also used with Ethernet 10Broad36 networks
– CATV stands for ”Community Antenna Television"
– CATV cabling is used for "broadband" transmission
– A broadband cabling system supports transmission of multiple
services over a single cable by dividing the bandwidth into
separate frequencies
• This technique is used in cable TV transmission systems to
transmit multiple channels over a single cable
• Each channel uses a different frequency range
 Ethernet Cabling (Coaxial)
• Twinax
– Consisted of two center conductors surrounded by an
insulating spacer
– insulating spacer is surrounded by a tubular outer conductor
(usually a braid, foil or both)
– The entire assembly is then covered with an insulating and
protective outer layer
– 150-ohm twinax is specified as a "short haul" cable that can be
used with the 1000Base-CX media system
– It supports segment lengths of only 25 meters for 1000Base-
CX due to the very high 1.25 Gbaud signal transmission rate
 Ethernet Cabling (Fiber Optic)
• Fiber Optic Cables
– Fiber optic cabling is a technology where electrical signals are
converted into optical signals, transmitted through a thin glass
fiber, and re-converted into electrical signals
– It is used on FOIRL, 10Base-FL, 10Base-FB, 10Base-FP,
100Base-FX, 1000Base-LX, and 1000Base-SX
– Fiber optic cabling is constructed of three concentric layers:
• The core : Is the central region of an optical fiber through
which light is transmitted.
• The cladding: Is the material in the middle layer.
• The protective layer: serves to protect the core and
cladding from damage.
 Ethernet Cabling (Fiber Optic)
• Multi-Mode Fiber (MMF)
– Allows many "modes” of light to propagate down the fiber optic
path
– Multi-mode fiber typically has a core diameter of 50 to 100
microns
– The most popular fiber for networking is the 62.5/125(core
diameter/cladding) micron multi-mode fiber
– The primary advantage of multi-mode fiber over twisted pair
cabling is that it supports longer segment lengths
– Multi-mode fiber can support segment lengths as long as 2000
meters for 10 and 100 Mbps Ethernet, and 550 meters for 1
Gbps Ethernet
 Ethernet Cabling (Fiber Optic)

• Single-Mode Fiber (SMF)

– Single-mode fiber has a core diameter that is so small that only
a single mode of light is propagated
– This eliminates the main limitation to bandwidth, modal
dispersion
– The main limitation to the bandwidth of a single-mode fiber is
material dispersion
– Single-mode fiber is capable of supporting much longer
segment lengths than multi-mode fiber
– Segment lengths of 5000 meters and beyond are supported at
all Ethernet data rates through 1 Gbps
 BNC Connectors
Used on 10Base2 Ethernet Standard

Male BNC BNC Tee

Thin Coaxial Cable

Male BNC
 RJ-45 Connectors
Used on Ethernet twisted pair links( 10BaseT, 100BaseTX,
100BaseT4, 100BaseT2, and 1000BaseT)

RJ-45 Jack
 Ethernet cabling connections
RJ45 Plug wiring diagram
Pin Color Function
1 White/Orange TxData +
2 Orange TxData -
3 White/Green RxData +
4 Blue 100BT
5 White/Blue 100BT
6 Green RxData -
7 White/Brown 100BT
8 Brown 100BT
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 Interconnection Devices
• Repeater: PHY device that restores data and collision
signals: a digital amplifier
• Hub: Multi-port repeater + fault detection
• Bridge: Data link layer device connecting two or more
collision domains. MAC multicasts are propagated
throughout “extended LAN”
• Router: Network layer device. IP, IPX, AppleTalk. Does
not propagate MAC multicasts
• Switch: Multi-port bridge with parallel paths
 What is a Repeater?
• Repeaters are low-level devices that amplify or
regenerate weak signals
• Repeaters are needed to provide current to drive long
cables
• Repeaters are used to join network segments together to
increase the total length of the network
• Act at the physical layer and allow all traffic to cross LAN
segments

Strong Signal
Weak Signal
 What is a Hub?
• A place of convergence where data arrives from one or more
directions and is forwarded out in one or more other directions
• Hub is a repeater with fault detection functionality
• It connects high-performance stations/devices to Ethernet local
area networks and provides high-performance inter-LAN
connectivity using switching technology
• A hub usually includes a switch of some kind
 What is a Bridge?
• Connects a local area network (LAN) to another LAN that uses
the same protocol (for example, Ethernet or Token Ring)
• A bridge works at the data-link (physical network) level of a
network, copying a data frame from one network to the next
network along the communications path.
• Bridges can make minor changes to the frame before forwarding
it(such as adding and deleting some fields from the frame header)
 What is a Router?
• Routers determine the next network point to which a packet should
be forwarded on the way to its final destination
• Routers use the Network Layer Protocol Information within each
packet to "route" it from one destination or LAN to another
– This means that a router must be able to recognize all the
different Network Layer Protocols that may be used on the
networks it is linking together
• Routers communicate with one another to determine the best route
through the complex connections of many LANs to increase speed
and cut down on network traffic
 What is a Switch?
• A network device that selects a path or circuit for sending a unit of
data to its next destination
– A switch is a simpler and has faster mechanism than a router
• A network device processing packets at layer 2 and 3
– Layer 2 Switch:
• Filters and forwards at the data link layer of the OSI model
• Uses MAC addresses to determine where frames are sent.
– Layer 3 Switch:
• Routes packets at wire speed using Layer 3 (network layer)
information.
• Simultaneous switching of packets between its ports increases the
aggregate LAN bandwidth dramatically
 What is a NIC Card?
• A NIC is an expansion card used to connect a PC,
server, or workstation to a LAN
• NIC provides an interface between the network and the
PC’s bus
• Most NICs are designed for a particular type of network,
protocol, and media
• The NIC segments outgoing messages into packet
formats specified by the LAN protocol for transmission
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 The Push for Home
Networking
• Rapid growth in multiple-PC household penetration ( Dataquest)
– PC penetration exceeds 50% in US households
– Multi-PC households growth: 15M (in 1998) to 26M (in 2003)
• Increasing Internet usage (Yankee Group)
– Nearly 90% of PC households will be online by 2001
– Online households growth: 20% (in 1997) to 47% (in 2001)
• Broadband Internet access (Forrester Research)
– Broadband penetration growth: less than 1M (in 1998) to more than 15M (in
2002)
– % Penetration of online households: increases from 2% (in 1998) to 26% (in
2002)
 The Push for Home
Networking
• More digital appliances are coming into the home
– DSS, DVD, Digital TV
– Web-Top boxes, set-top boxes
– PDAs, mobile (cellular) phones
– Digital cameras
– Installed base of internet appliances will exceed 50M by 2001 (by IDC)
• More digital content entering the home
– Published Content
• CD-ROMs, DVDs, DVRs, digital photography
– Networked Content
• DTV, DBS, VoIP, MP3, movies-on-demand, streaming media
Four Aspects to Home Networking
 Applications Driving
Home Networking
120

100

80

60

40

20

0
1999 2000 2001 2002 2003

Phone Line Power Line RF Ethernet Other

Courtesy: Dataquest
Different Strokes for Different Folks

Home appliances have different content, functionality,

application, and use different interconnection technologies
Multimedia Bandwidth Requirements
• High Quality Video
– Digital Data = (30 frames / second) (640 x 480 Pixels) (24-bit
color / pixel) = 221 Mbps
• Reduced Quality Video
– Digital Data = (15 frames / second) (320 x 240 Pixels) (16-bit
color / pixels) = 18 Mbps
• High Quality Audio
– Digital Data = (44,100 audio samples / sec) (16-bit audio
samples) (2 audio channels for stereo) = 1.4 Mbps
• Reduced Quality Audio
– Digital Data = (11,050 audio samples / sec) (8-bit audio
samples) (1 audio channel for monaural) = 0.1 Mbps
 Bandwidth (kbps)

10000

1000

10
100

1
Internet

Fast
Internet

Printing

Share
Files

Gaming

Voice

MPEG
Audio

MPEG
Video
1 Mbps
10 Mbps
Bandwidth Requirement100 Mbps
 Home Appliances Bandwidths
Application Technique Data Rate Compression
Video Video Conference Quality H.261 0.1 Mbps Yes
Streaming Video MPEG-4 5 Kbps ~10 Mbps Yes
VCR Quality MPEG-1 1.2 Mbps Yes
Broadcast Quality MPEG-2 2 ~ 4 Mbps Yes
Studio Quality Digital TV ITU-R 601 166 Mbps No
DVD/ Studio Quality DTV MPEG –2 3 ~6 Mbps Yes
HDTV CD-DA 2000 Mbps No
HDTV MPEG-2 25 ~ 34 Mbps Yes
Audio Streaming Audio MPEG L3(MP3) 32~ 320 Kbps
Consumer CD-Audio CD-DA 1441 Kbps No
Consumer CD-Audio MPEG with FFT 192 ~256 Kbps Yes
Sound Studio Quality MPEG with FFT 384 Kbps Yes
Dolby AC-3 5.1 Channels 640 Kbps Yes
Telephone Standard G.711 PCM 64 Kbps No
Standard G.721 ADPCM 32 Kbps Yes
Lower GSM 13 Kbps Yes
Lower CELP 5 ~7 Kbps Yes
Broadband DSL ADSL 1.5 ~9 Mbps N/A
Internet Cable Modem DOCSIS 2 Mbps N/A
Access
Ethernet & Home Networking
• For the home networking purists, Ethernet equipment
offers cheap and proven products
• The Ethernet market is second behind the phoneline
technology
• Cahners In-Stat Group expects that Ethernet networking
will be 30% of total home networking units shipped
Ethernet & Home Networking
• Distribution of Video for the entertainment applications requires
larger bandwidth
– MPEG 2 (used in HDTV) requires between 24 to 35Mbps
• Fast Ethernet delivers video data at 100 Mbps
• Fast Ethernet is capable of delivering video data at high speed
– Fast Ethernet is a mature, proven, and Inexpensive solution
– Fast Ethernet has been successfully used in enterprise
networking
 Home Networking Applications
• Fast Ethernet is an enabling technology for connecting devices
such as:
– Digital Camcorders and VCRs
– Direct-to-Home (DTH) satellite audio/video
– Cable TV and MMDS (microwave) set-top boxes
– DVD Players
– Video Games
– Home Theater
– Musical synthesizers/samplers with MIDI and digital audio
capabilities
– Digital audio tape (DAT) recorders, mixers, hard-disk
recorders, video editors, etc.
Home Networking Applications

– Digital Video (DV) applications (including security

cameras)
– Fixed and removable PC disk drives
– PC-to-PC networking and PC peripheral component
sharing
– Printers for video and computer data
– Scanners
Ethernet Home Networking
NIC Forecast
300
250

200

150

100

50

0
1Q99 2Q99 3Q99 4Q99 1Q00 2Q00 3Q00 4Q00

Unit Shipped (K)

Source: In-stat Group

Ethernet Home Networking
NIC Forecast
$8,000
$7,000
$6,000
$5,000
$4,000
$3,000
$2,000
$1,000
$0
1Q99 2Q99 3Q99 4Q99 1Q00 2Q00 3Q00 4Q00

End-Use Sales ($K)

Source: In-stat Group
Ethernet Home Networking
Hub Forecast
160
140
120
100
80
60
40
20
0
1Q99 2Q99 3Q99 4Q99 1Q00 2Q00 3Q00 4Q00

Units Shipped (K)

Source: In-stat Group

Ethernet Home Networking
Hub Forecast
$8,000
$7,000
$6,000
$5,000
$4,000
$3,000
$2,000
$1,000
$0
1Q99 2Q99 3Q99 4Q99 1Q00 2Q00 3Q00 4Q00

End-Use Sales ($K)

Source: In-stat Group
Ethernet Home Networking
Switch Forecast
30
25

20

15

10

0
1Q99 2Q99 3Q99 4Q99 1Q00 2Q00 3Q00 4Q00

Units Shipped (K)

Source: In-stat Group

Ethernet Home Networking
Switch Forecast
$3,000
$2,500

$2,000

$1,500

$1,000

$500

$0
1Q99 2Q99 3Q99 4Q99 1Q00 2Q00 3Q00 4Q00

End-Use Sales ($K)

Source: In-stat Group

Problem: Islands of Technology
Fast Ethernet Home Network
Printer
PC#1
Security

Entertainment
HUB center
100BaseT
Broadband Access

PC#2

DVD
Ethernet data rate can network all the home PC#3
appliances efficiently
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
Introduction to
Xilinx
Where Does Xilinx Fit In the
Electronics Industry
Key components of
an electronics system:
• Processor
• Memory
• Logic
Xilinx is the Leading
Innovator of
Complete Programmable
Logic Solutions
 Strategic Business Model
Ensures Focus
• “Fabless” strategy
– Leading edge IC process technology
– Wafer capacity at competitive prices
– Fastest, lowest cost, densest parts
• Independent sales organization (Reps & Distributors)
– Sales is a variable cost
– Permits greater reach—over 20,000 Customers
– Over 10,000 “Feet On The Street”
• Focus on key strengths
– Product design
– Marketing
– Applications & Technical Support
Xilinx:
Xilinx:
Update
Updatewith
latest
with
latestproductXilinx Product Portfolio
product
portfolio
portfolio

High Performance High Volume Low Power

High Density Low Cost Low Cost
Xilinx - Leader in Core Solutions
Introducing the Spartan-II FPGA
Xilinx:
Xilinx:
Spartan-II: Extending the Spartan Series
Update
Updatewith
3?
withS-
S-
3?

More Gates 2X gates/$ More Performance

3X gates per I/O
2X I/O Performance
3X number of gates

100,000 Gates
for $10
Cores
Feature Rich DLLs Easy Design Flow
Time to Market
Select I/O Re-programmable
Block RAM Fast, Predictable
Distributed RAM Routing

Programmable ASIC/ASSP Replacement!

FPGA Application Trends

Programmable ASIC/ASSP Replacement!

Spartan-II - Architecture Overview
Delay Locked Loop (DLL) Configurable Logic Blocks (CLB)
Clock
Configurable
Management:
Logic Block
Multiply clock Array and
Divide clock Distributed RAM
CL DLL IOB IOB DLL CL
De-skew clock
I/O Routing Ring
I
O R CLB ... CLB R I
O
B A A B Select I/OTM
M M

...

...
Technology
I R R I
A A Chip to Backplane
O
B M CLB ... CLB M
O
B
PCI 33MHz 3.3V
PCI 33MHz 5.0V
Block Memory I/O Routing Ring PCI 66MHz 3.3V
CL DLL IOB IOB DLL CL GTL, GTL+, AGP
True Dual-PortTM
4K bit RAM Chip to Memory
HSTL-I, HSTL-III
4Kx1
2Kx2 HSTL-IV
1Kx4 SSTL3-I, SSTL3-II
512x8 “The Spartan-
Spartan-II family, in our opinion, SSTL2-I, SSTL2-II
CTT
256x16 may be the closest that any FPGA has
come to being at a low-
low -enough price to
Chip to Chip
compete against an ASIC” LVTTL, LVCMOS
--Dan
-- Dan Niles, Industry Analyst
Xilinx:
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withS-
3?
3? Spartan-II - System Integration
S-
Xilinx:
Xilinx:
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forS-3?
Spartan-II Core Support
S-3?

• On-chip memory & storage • Memory controllers (10+)

– Distributed, BlockRAM, FIFOs – SDRAM, QDR SRAM
• Bus products • Communications
– PCI (64- & 32-bit, 33/66MHz), – ATM (IMA, UTOPIA), Fast
Arbiter, CAN bus interface Ethernet (MAC)
• DSP Functions (FIR filter) • Telecom
• Error correction – CDMA matched filter, HDLC,
– Reed-Solomon, Viterbi DVB satellite, ADPCM speech
codec
• Encryption (DES & triple DES)
• Microprocessor • Video & image processing
– ARC 32-bit configurable RISC, – JPEG codec, DCT/IDCT, color
8-bit 8051 microcontroller space converter
• UARTs
Xilinx:
Xilinx:
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forCR-
II?
II?
CR-
Xilinx CPLD Families
Xilinx
CPLDs

- High Speed
XC9500 - Lowest Power
- Low Cost CoolRunner - Highest Density
Family

5 Volt XPLA (Original & Enhanced)

3 Volt XPLA2 SRAM Based

2.5 Volt XPLA3 (Released)

PAL (Simple PLD-22V10)

Xilinx:
Xilinx:
Update
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forS-3?
Spartan-II End Applications
S-3?

• Consumer • Computer/Storage
– Set Top Boxes/Digital VCRs – Printer/Scanner
– DTV/HDTV – Multi-function office equipment
– Digital Modems – Storage devices
• xDSL, Cable, Satellite – Home servers
– Home Networking products – Audio/Video add-in cards
– Bluetooth appliances • Industrial/Medical
– LCD/Flat-Panel Displays – Medical Imaging
• Networking – Industrial automation/control
– Telecom linecards – Data acquisition
– DSLAMs – Video capture/editing
– LAN Hubs/Switches – Automated test equipment
– SOHO Routers – Automotive Info-tainment
– Cellular base stations systems
Xilinx:
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forCR-
II?
II? CoolRunner Technology
CR-

• Full density range 32 to 960 macrocells

• World’s only TotalCMOS CPLD
– Bipolar style sense amps eliminated
– Virtually no static power dissipation
• Advanced PLA Architecture
– Product term sharing (no redundant logic)
– No wasted product terms
• 3.3v and 5.0v devices
• ISP/JTAG compatible & full software support
Xilinx:
Xilinx:
Update
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forCR-
II?
II? The CoolRunner Advantage
CR-

• Industry’s lowest power CPLDs

– Standby current < 100uA
– High speed TPD = 6 ns
– Revolutionary XPLA architecture
• Exceptional routability & pin-locking
• Fast, predictable timing
– Small form factor packaging
• New 0.5mm 56-pin MicroBGA
• No Speed / Power tradeoffs in scaling
– Can build very large / very fast devices
– 960 macrocell device @ 7.5 nsec tPD
 XC9500XL Key Features
200MHz
• High performance 125MHz

– tPD = 5ns, fSYS = 178MHz

• 36 to 288 macrocell densities
• Lowest price, best value CPLD
• Highest programming reliability
• Most complete IEEE 1149.1 JTAG XC9500 XC9500XL
• Space-efficient packaging, including chip scale pkg.
Lowest Price
Per Macrocell
 XC9500XL/XV System
Features
• I/O Flexibility
– XL:5V tolerant; direct interface to 3.3V & 2.5V
– XV:5V tolerant; direct interface to 3.3V, 2.5V & 1.8V
• Input hysteresis on all pins
• User programmable grounds
• Bus hold circuitry for simple bus interface
• Easy ATE integration for ISP & JTAG
– Fast, concurrent programming times
System Block
Diagrams for
Ethernet Solutions
Xilinx:
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withS-
3/CR-IIBlock Diagram Template / Index
3/CR-IIlogos?
logos?
S-

Xilinx Solution Or

Peripheral Components

Memory

Mixed Signal / RF / Analog Component

µP/ µC

Embedded Chip/ ASSP

 Digital TV
Audio
SDRAM Audio
CODEC
ADC MUX
MPEG-2
Decoder
SPDIF to Audio
SPDIF Audio
I2C Memory Color CODEC
MUX
CODEC Controller MUX
Graphics I2C
Controller to SPDIF
RF in NTSC NTSC CODEC
Tuner Audio
Decoder
PCI Bridge
NTSC CPU
Video MUX YUV to DAC
Decoder RGB Display
VSB
ALT PCI Bus
Home Ethernet Ethernet
Network PHY MAC
Descrambler I/O Control
Satellite FEC
QPSK FEC

Cable PID RS-232C Parallel Serial

Serial Keyboard/Mouse
Keyboard/Mouse
QAM FEC
FEC
Processor Interface Interface Interface
Interface Interface
Interface
 Interactive DVD Player
CD Bypass
I/F MUX

MPEG 2
DRAM Serial
Linear PCM Output Audio
I/F DAC
S/P DIF
Dolby Digital
Channel
Control
Drive Stereo Audio
Demodulator Display
Unit
ECC MPEG-2 Controller
Decoder Karaoke Mic
Processor

TV
DSP NTSC/PAL
Processor Encoder
CPU
Ethernet
MAC
Memory SDRAM
Controller
SDRAM Ethernet
PHY

Microcontroller Front Panel Home Network

 Set Top Box
Home Network Ethernet
CVBS, Y/C NTSC/PAL PHY
Decoder Graphics
Back DRAM
Ethernet
UART Channel MAC

UART DRAM MPEG

Video NTSC/PAL
Decoder Encoder
Parallel CPU
TV
PCMCIA
Decoder Bus

Hard Drive Memory

Hard Drive Controller Controller Transport MPEG Audio
Demux Audio DAC
Satellite Decrypt Decoder
QPSK
PC
DRAM
Cable QAM Tuner
Module DRAM DRAM DRAM
Terrestrial
QFDM
Descrambler
Phone Error
DSL Demod Correction Card Reader
 Set-Top Decoder Box
SDRAM
DRAM
Controller

DRAM

Cache/Bus
Cache
Controller
Clock Generator SDRAM
& DLLs Controller
32-bit
Satellite QPSK Decoder System
and FEC Processor
Audio/ MPEG Audio-
I/O Video Decoder Video
Cable Control Buffer
QAM Decoder & CPU DACs
and FEC
Descrambler
Digital Video &
Peripheral Bus Digital Audio

General Smartcard
Ethernet I2C
Purpose I/Os Interface
 Digital VCR Set-Top Box
Memory HDD Hard Disk
RAM Controller MPEG Encoder
Interface Driv e
CVBS (Composite Video
Clock Generator
& DLLs Baseband Spec) NTSC PAL On Screen Display & NTSC PAL
Decoder Graphics Controller Encoder
To
Satellite Tuner, QPSK T.V.
Decoder and FEC Audio- Audio
CPU
Glue Logic Video
DACs Video
Cable Tuner, QAM
AC3
Demodulator and FEC
MPEG Decoder Decoder
I/O
Control & CPU
Terrestrial Tuner, OFDM
Decoder and FEC Glue
Logic HomePNA
x DSL Memory
DSL Driv er/ Receiv er, RAM Controller
Transceiv er and FEC 10/100 Base- AFE
TX Ethernet MII
Smart Card Conditional Access for MAC
Reader/Interface Smart Card Readers HomePNA I/F
Modem I/F Ethernet I/F
10/100 Base-TX
Modem

Interface
Transceiv er
PCMCIA I/F
PCMCIA USB I/F
USB Dev ice USB
Controller Transceiv er
I/F Ethernet Ethernet
PHY MAC Key board, Infrared, RS232
 Residential Gateway (STB)
Clock Generator NTSC
& DLLs On Screen Display &
PAL
Graphics Generator
Encoder
Satellite QPSK Decoder To T.V.
and FEC Audio-
Glue Logic Video
DACs
Memory
Cable QAM Decoder and Analog
Front
FEC MPEG HomePNA
End
I/O Decoder (AFE)
Control & CPU 10/100 Base-
Terrestrial TX Ethernet MII

Interface
OFDM Decoder and
MAC
FEC

Glue 10/100 Base-TX

RJ-45
Logic Transceiv er
xDSL DSL Driver/ Receiver,
Transceiver and FEC
USB USB
Dev ice UTP
Transceiv er
Conditional Controller
Hard Disk HDD Access
Drive Interface IEEE 1394/FireWire

Smart Card RS-232

 Game Console
Pixel Display
Vector Vector Graphics
CPU Processor Controller
Unit Unit Interface

DRAM
TV
NTSC/PAL
Memory 10-Ch MPEG-2 I/O Decoder
Controller DMA Decoder Interface

48-Ch
Sound Chip DVD
ROM

SDRAM
I/O Processor I/O
SDRAM Circuit
Audio PCMCIA
SDRAM Interface
SDRAM
Modem
Home Network Ethernet Ethernet USB
PHY MAC
 PC
Video In
Home Network

Bluetooth
Display
NTSC/PAL
ISA
Decoder 1394
PHY
UART

Super I/O
CPU LCD VGA 1394 USB
Controller MAC PCIISA Audio
Speakers
Memory PCI
Controller

Ethernet
DIMM PCI to PCI
PCMCIA MAC
Bridge
SIMM
PCI
Home Network
Ethernet
Modem PHY
HDD HDD
Controller
 Printer
Clock Resolution Image
Distribution Enhancement Processor

CPU Engine Print

Interface Engine

FLASH Adapter/ System Control &

SDRAM Interface I/O Interface

Ethernet
Memory SDRAM MAC

Home Network
Ethernet
PHY
 Scanner
LENS

JPEG
Codec
CCD
A/D DSP
Array
Memory
Interface
Pixel
PC Data Transmission
Co-Processor

NTSC/PAL Memory
POS
Encoder
Ethernet
MAC

Home Network
Ethernet
PHY
 Home Security

Ethernet Ethernet Audio DAC Microphone

PHY MAC

Home Network
MPEG
Bus Switch Microcontroller FIFO Decoder

Keypad Memory
Camera
Controller CCD AFE
Power
Mgmt
LCD Controller
Driver SDRAM FLASH
CCD
SDRAM FLASH Imager
 Digital Camera

FLASH FLASH Adapter/

Memory Control I/O Control RS-232C Interface
Memory

DRAM IrDA Module

CPU
Memory
Bluetooth Module
Card

LENS JPEG
Camera DSP Ethernet Interface
Co-Processor

Graphics LCD Controller

CCD A/D LCD Panel
Controller Driver

Video Encoder Video Out

Xilinx:
Xilinx:
Update
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withS-3
S-3
Satellite Modems
logo?Quadrature Data from Tuner
logo?
I - Channel Q - Channel
Input Input

De-Interleaver
ADC ADC Clock RAM Ethernet Interface
Generator

QPSK/BPSK Viterbi Synch & Reed-Solomon

Descrambler
Demodulator Decoder De-Interleaver Decoder

Data Clock

RAM
System
I/O
Tuner Interconnectivity Flash
CPU
Interface

RF In Decryption Video Encoder MPEG A/V

MPEG
Transport & A/V
RAM
VIDEO AUDIO
 Cable Modem Residential
Gateway
Analog IF/AGC
10/100 Base-TX 10/100 Base-TX
Ethernet MAC RJ-45
FEC Transceiv er
Memory
SAW ADC
USB Dev ice USB
UTP
Controller Transceiv er

In DMA Interrupt
Tuner QAM FEC Decry ption DMA Controller &
Demodulator Decoder Conditional Central Arbiter
Access
Flash
Controller Flash

Interface
8-/16-/32- bit Cable SDRAM
Microcontroller SDRAM
MAC/SAR Controller
Clock Generator
& DLLs SDRAM
Controller SRAM

DAC QPSK/16QAM FEC

Modulator Encoder Encry ption IP Telephony

IP Security Module Direct TDM 4 v oice channels

Pow er
UART (DES & Triple-DES) CODEC or 1 v ideo & 1
Supply
Interface v oic e channel
DSL Modem Home Gateway
10/100
10/100 Base-
Base-TX
TX Ethernet
Transceiver 8 M Hz
MAC
Oscillator
UTOPIA DRAM
or ISA
Clock Generator
Expansion & DLLs
Bus DRAM 32-bit
Interface Controller Processor
UTOPIA
I/F or DSL
Network ATM Driver/
Interface Receiver
Block Chipset

PCI Bus 8 KB Hasher

Interface Internal List
SRAM M anager

PCI
 VoIP Phone
Data Services Serial
Port SRAM

RAM Flash
Interface(Audible Indicator,

USB Non-Voice User

Non- Voice User

Interface Logic
Key Pad)

LCD, LED (LCD, LED, IR Digital Signal

Remote, USB, Processing (Voice
Keyboard, System Processor
Keypad Keyboard Controller) processing, system (Signaling &
control, caller ID, Network
V.34/V.42 Modem) Management)

Voice CODEC (Handset

RJ-45 & speakerphone CODEC
10/100 Base-TX
(ADC, DAC) with Audio
Ethernet MAC
Filters

To/From PC
10/100 Base-
MII
TX Transceiver To/From Network
Handset Speaker MIC

Voice Interface
 DSL CPE
(Customer Premise Equipment )
Digital Signal
Processor

Memory
DSL
Analog Transceiver
Line Driver/
To line & Front End
Receiver Equalizer, Reed-
POTS A-to-D & D-to-A Solomon FEC
Line Driver, HDLC System
splitter Converters, Encoder/Decoder,
Receiver & Framer Controller
Filters, Interleaver, Modulator,
Amplifiers
Amplifiers Demodulator, Packet
Format Logic

Interface

Analog Front
HomePNA
End (AFE)
PCI Backplane
Interface 10/100 Base-TX 10/100 Base-TX
Ethernet MAC MII RJ-45
Transceiv er

Clock Generator USB Dev ice USB

UTP
& DLLs Controller Transceiv er
 Fast Ethernet Switch
SRAM
EPROM
SRAM Glue
Memory Logic
Controller CPU PLD PLD
Flash

SRAM
Switch
Fabric

SRAM SRAM SRAM

Port Controller Port Controller Port Controller

MAC MAC MAC

Quad Quad Quad Quad Quad Quad

PHY PHY PHY PHY PHY PHY
HomePlug to Ethernet Bridge
SDRAM Flash

DLLs

10/100 Base-TX 10/100 Base-TX

Transceiver MII Powerline
Ethernet MAC
Memory Network
Controller Controller

PCI
Interface DMA Processor
USB
USB Device
Transceiver Controller

32-bit Parallel FEC

Bus Inter face
 USB to Ethernet Bridge
RAM

10/100 Timers,
Ethernet 10/100 Flash SRAM
Base-TX Watchdog Timer
Base-TX MII
Ethernet
Transceiver
MAC
Memory
Processor Controller
Tx/Rx
UART

Serial Interface
Clock Generator
Engine
& DLLs

USB Device USB USB I/F

Controller Transceiver
 Multi-Function Peripheral

Image Sensor
Power
Processor
Management

Fax
USB Node System Motor Scanner
Controller
(UART,
Fax Modem CODEC,
Controller CPU/DSP Miscellaneous I/O Bluetooth Module
DMA)

FLASH Adapter/ Serial Peripheral

SDRAM Interface Interface

FLASH Memory/
DRAM Printer Motor
ROM
 ISDN Modems

ISDN “U” or “S”

Interface PCMCIA Interface CPU UART

RS-XXX FLASH Adapter/

I/O Control SDRAM Interface
Interface

FLASH
Ethernet DRAM
Memory
MAC

Ethernet
Home Network
PHY
Xilinx:
Xilinx:
Update
Updatefor
Spartan-II IP Solutions for
forS-3
S-3
/IP
/IPcores?
cores?
Ethernet Enabled Devices
• I/O Control • Memory solutions
– Multiple front end interfaces – Distributed memory, BlockRAM
– Multiple back end interfaces – Memory controllers
• Hard disk drive interface • CPU/Microcontroller
• Clock distribution • HDLC controller
– DLLs • PCI
• MPEG decoder • Glue Logic
• Ethernet MAC – LCD controllers
• Error Correction – UARTs
– Reed-Solomon, Viterbi – DMA controllers
Programmable
Solutions
Advantages
 Xilinx Programmable Solutions
Provide Several Benefits
• Time-to-market
– Consumer devices require fast tim e-to-market
– ASICs & ASSPs take 12-18 months to spin out
• Flexibility
– Product customization to meet customer needs
– Accommodate multiple standards & spec updates/changes
– Feature upgrades
• Testing and verification
– Re-programmable allows risk aversion
– Your solutions are built on a proven FPGA technology with pre-verified
silicon and IP that guarantees performance
 Xilinx Programmable Solutions
Provide Several Advantages
• Xilinx On-line - field upgradability
– Remote update of software and hardware
– Results in increased lifetime for a product (time-in-market) and
allows new, interesting applications
– Enable product features per end-user needs
• Issues in creating a stand-alone ASIC/ASSP
– Choosing the right solution
– Product customization
– Development cost and amortization
• Low Cost
 Lifecycle Component
Logistics
• Xilinx is an assured source of supply
– Spartan FPGAs are high volume standard parts
– Xilinx is a Strategic customer to our fab partners
– If a device is retired, designs are quickly portable
• Xilinx’s solutions reduce exposure to component supply issues
– Designs can be quickly adapted to efficiently address
component supply problems
• NAND to NOR type Flash support for example
– Gives latitude in maintaining a cost effective BOM in dealing
with the allocation, end of life & generational migration realities
of today’s component market
 Specification Changes
• Emerging markets are exposed to
multiple standards and
specification changes
– DSL Modem market
• 6 different variations
– DTV market
• 18 different formats

OEM/ Vendor Market

A Programmable Solution Future Proof’s Success

Xilinx:
Xilinx:
Update
Updatefor
forS-3?
New Flexibility from FPGAs
S-3?

Driving down the cost of consumer products with low cost reprogrammable products

Current Future
GSM 3G
CDMA 3G+
PCS 4G
TDMA

Enabling a whole new breed of consumer products

Reprogrammable nature allows

-Field upgrades
-Field fixes
- Mars probe repair from earth
-Support for numerous standards
Xilinx & Replay TV
-Revolutionizing consumer TV
Xilinx:
Xilinx:
Update
Updatewith
FPGAs, the Unsung Hero
withS-
S-
3?
3? Driving the Consumer Digital Logic
Revolution
• The digital consumer world is here
– Imperatives driving market success
• Time to market and time-in-market
• Flexibility
• Custom digital logic
• Xilinx - The answer for consumer digital applications
– Introducing the low cost Spartan-II programmable family
• Cost reduced for the consumer market
• Fully programmable at the desktop, in the field or in the
application
• Future proofed for changing standards
 Xilinx Digital Consumer Logic
A Natural Fit for Home Networking
• Xilinx solutions enable you to thrive in chaos
– Fastest tim e-to-market
• First to market, gains market share and revenue advantage
– Xilinx Online provides reconfigurability in the field
• Allows shipped product to support revisions to the spec
• Enables unique opportunities to add Value
• Increases life-cycle revenue yield & hence time-in-market
– Enables rapid product proliferation
• New designs can be quickly turned into derivatives
– Feature superior lifecycle component logistics
– Testing and Verification
• Proven FPGA technology, software, test benches
• Cost Effective!!!
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 IEEE 802.3
• The IEEE 802 LAN/MAN Standards Committee develops
Local Area Network standards and Metropolitan Area
Network standards
• The most widely used standards are for the Ethernet
family, Token Ring, Wireless LAN, Bridging and Virtual
Bridged LANs
• The IEEE 802.3 Working Group develops standards for
CSMA/CD (Ethernet) based LANs
 Gigabit Ethernet

• Is an open forum with the purpose of promoting

industry cooperation in the development of
Gigabit Ethernet
• http://www.gigabit-ethernet.org
• Funded in 1996 by:
– 3COM, Bay Networks, Cisco, Compaq, Granit
System, Intel,LSI Logic, Packet Engine, SUN
Microsystem, UB Networks, VLSI
 Agenda
• Introduction • Ethernet & Home Networking
– What is Ethernet? – Motivation for home networking
– Market Analysis Data – Ethernet in HN
• Technology • Xilinx Solution
– MAC Types • Alliances
• What is CSMA/CD? – Gigabit Ethernet
• Variables of CSMA – IEEE 802.3
– What is OSI Model? • Summary
– What is TCP/IP Model?
– Ethernet Frames
– Ethernet PHY Specs
– Ethernet MAC
– Ethernet Cabling and
Connectors
– Ethernet Devices
 Ethernet - A Viable
Technology for Your Home
• Ethernet is a proven and mature technology
– Has been used in enterprise networking for years
– Inexpensive standard interface on most computers
• Simple algorithm, inexpensive implementation
– Network Interface Cards, Cables, Hubs, and other equipment
are relatively inexpensive
• Handles video applications quickly and effectively
– High quality video applications require bandwidth of greater
than 30 Mbps
• Scalability
– Install/ disconnect stations on the fly without disruption
Xilinx:
Xilinx:
Update
Updatefor
forS-
3/CR-II?
3/CR-II?
S-
Summary
• The digital consumer revolution & the Internet are forcing high-
bandwidth broadband to the home
– Ethernet offers a viable home networking technology
• Various Ethernet-based products are being developed
– Residential gateways: DSL, cable, satellite modem
– Technology bridges: Ethernet-to-1394, HomePNA-to-Ethernet,
Ethernet-to-wireless LANs
– Ethernet enabled information appliances: digital TV, DVD
player, Internet screen phones, PCs, printers, etc.
• Spartan-II FPGAs, CoolRunner & 9500 CPLDs provide system
interconnectivity in Ethernet based products