A-4
AHA-2940UW/OF and AHA-2944UW/OF User’s Guide
Reset Initialization Default Data Adjustments
SCSI ID Configuration Flags
Wide
Host Adapter Control
Fast-20
Autotermination
Bit 5
Initiate Wide SCSI Negotiation
0
This bit is cleared (
DISABLED
) for SCSI IDs 0 through
7 when it has been sensed that the
WIDEPS
# input has
been deasserted.
1
This bit is set (
ENABLED
) for all SCSI IDs when it has
been sensed that the
WIDEPS
# input has been asserted.
Bit 1
UltraSCSI Mode
0
This bit is cleared (
DISABLED
) when the
GND
/
REXT
pin is sensed as being tied to ground.
1
This bit is set (
ENABLED
) when the
GND
/
REXT
pin is
sensed as having an external precision resistor
present.
Bit 0
Automatic Cable-Sensing Termination
0
This bit is cleared (
DISABLED
) for products that do
not support automatic cable-sensing termination.
1
This bit is set (
ENABLED
) for products that support
automatic cable-sensing termination.
Bit 7
Automatic Current-Sensing Termination
0
This bit is always cleared (
DISABLED
).
