Avago Technologies LSI53C1010R - Manual (Page 108)

3-14 Signal Descriptions
Version 2.2 Copyright © 2000–2003 by LSI Logic Corporation. All rights reserved.
B_DIFFSENS B22 I N/A SCSI Function B Differential Sense pin
detects the present mode of the SCSI
bus when connected to the DIFFSENS
signal on the physical SCSI bus.
LVD Mode: If a voltage between 0.7 V
and 1.9 V is present, SCSI Function B
operates in the LVD mode.
SE Mode: If a voltage below 0.5 V is
present, SE operation is indicated. SCSI
Function B operates in the SE mode.
HVD Mode: When this pin is detected
HIGH (above 2.0 V) HVD operation is
indicated. SCSI Function B is driven to
the high impedance state. This pin is
5 V tolerant. The HVD Mode is not
supported.
Table 3.11 SCSI Function B Signals (Cont.)
Name Bump Type Strength Description