Avago Technologies LSI53C120 - Manual (Page 22)

2-4 Functional Description
the Re-timing Logic to maintain constant and precise control over bus
timings.
2.1.4 State Machine Control
The State Machine Control tracks the SCSI bus phase protocol and other
internal operating conditions. This block provides signals to the Re-timing
Logic that identifies how to properly handle SCSI bus signal re-timing
based on SCSI protocol.
2.1.5 Differential Control
In the SCSI converter (SE to High Voltage Differential (HVD)) mode, the
SCSI A-side pins are connected internally to the corresponding SCSI
B-side differential pins, forming bidirectional connections to the SCSI
bus.
2.2 SCSI Signal Descriptions
Figure 2.2 illustrates the signal groupings of the LSI53C120. A
description the of signal groups follow. For a description of a specific
signal, refer to
Section 3.1, “Signal Descriptions,” page 3-1 . See
Section 3.2, “Electrical Characteristics,” page 3-8 about signal electrical
characteristics.