User`s guide

KZPBA-CA PCI-to-UltraSCSI Storage Adapter
A–2 EK–KZPBA–UG. B01
Table A–1 Descriptions of Host Adapter Parameters (KZPBA-CA General
Operation)
Parameter Default Description Option
FIFO Threshold
1020
1020A
1040B
2
3
3
Sets the FIFO threshold point at
which burst transfers are requested
on the KZPBA-CA host adapter.
The burst transfer is tri
gg
ered
differentl
y
for host memor
y
write
operations and host memor
y
read
operations. The bus transfer is
tri
gg
ered when the FIFO b
y
te count
reaches the threshold point for host
memor
y
writes operations. The bus
transfer is requested when the
FIFO b
y
te count is below the
threshold point for host memor
y
read operations.
See Table A–2 for the
FIFO threshold points
available and the
correspondin
g
parameter settin
g
to
select each.
Host Adapter
Enable
1 Determines whether the BIOS
reco
g
nizes the KZPBA-CA host
adapter.
Set to 0 to disable the
host adapter without
ph
y
sicall
y
removin
g
it
from your system.
Initiator SCSI ID 7 Sets the KZPBA-CA SCSI ID.
0–15
Bus Reset
Delay
1 After resettin
g
the SCSI bus, the
firmware refrains from initiatin
g
an
y
SCSI activit
y
for the number of
seconds specified b
y
this
parameter.
0–255 seconds
Retry Count 0 Specifies the number of times the
firmware attempts to retr
y
a
selection time-out or a busy status.
0–255 retries.
Retry Delay 1 Sets the time (in 100-ms
increments) that the firmware waits
before re-attempting an operation.
0–255 in 100-ms
increments
As
y
nchronous
Data Setup
Time
FAST-10
FAST-20
6
9
Sets the number of clock periods
the KZPBA-CA host adapter card
waits after drivin
g
the SCSI data
si
g
nals before assertin
g
a SCSI bus
acknowledge signal.
See Table A–3.