
MULTIPROCESSOR CONFIGURATIONS 471
modules. e third quality is the multibus generality. It could accommodate many diff erent
microprocessors and it became very popular for various industrial uses.
Multibus specifi ed four busses, called the multibus system bus, the I/O expansion bus
(iSBX), the execution bus (iLBX) and the multichannel I/O bus. e multibus system bus was
adopted as IEEE 796, and the iSBX bus was adopted as IEEE P959. Multibus is popular in
industrial systems, and while it is a fairly old bus, it is still in common use. In the early 80’s,
Intel created Multibus II, which was later adopted as IEEE-STD 1296. e real strength ...