A multiple-bit wire name can be a bundle, a bus, or a
combination of the two. You can improve
readability in your designs by shortening multiple-bit wire names.
To indicate that multiple bits of one wire carry similar
information, give each bit the same base
name. Then add a suffix to each bit name to distinguish the
signals.
For example, to show four bits of a wire with a common base
name (DATA), but with individual
suffixes (<0>, <1>, <2>, and <3>), assign the following names:
DATA<0>, DATA<1>,
DATA<2>, and DATA<3>.