SCSI Bus Interface Signals
3-11
DIFFSENS
A20
I
N/A
SCSI 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, the SCSI bus operates in
the LVD mode.
SE Mode: When this pin is driven LOW
(below 0.5 V), the SCSI bus operates in
the SE mode.
HVD Mode: When this pin is detected
HIGH (above 2.0 V) HVD operation is
indicated. The SCSI bus is driven to the
high impedance state. This pin is 5 V
tolerant. The HVD Mode is not supported.
Table 3.9
SCSI Signals (Cont.)
Name
Bump
Type
Strength
Description
Содержание LSI53C1000
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