1.2
Interface Signal Definition
Figure 1.2 shows interface signal types. The SCSI bus consists of 27 signal lines. The 27 signal
lines consist of data buses (2 bytes plus two odd parity bits) and 9 control signal lines.
The SCSI bus can be a single-ended or low voltage differential(LVD) interface depending on the
model used. Their physical and electrical characteristics are detailed in Sections 1.3 and 1.4.
C141-C015
P_CRCA
Figure 1.2
Interface signals
(18)
15