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Byte 00 of the parameter list is zero,
indicating that the
attached devices are direct access disk devices with a read and
write capability.
The RMB bit of byte 01 indicates whether the
attached LUN is a fixed or removable drive.
This bit equalling
1 indicates a removable drive.
Removable media drive can be
identified by the MODE SENSE command.
Byte 02 is 01, indicating
that the ACB-5500 meets the SCSI specifications, version 14.
The
only significant exception
is
the definition of
the
Format
Cylinder Option and optional fill character.
Byte 03 is 00,
indicating that no other bytes are defined.
Valid Errors:
Error
Bad Format
Bad Argument
Cartridge Changed
Initiator Detected Error
SCSI Bus Out Parity Check
Adapter Parity Check
6.12
WRITE DATA BUFFER (13H)
BIT
Error Code
BYTE
07
06
05
04
03
02
01
00
------1------1------1------1------1------1------1------
00
0
0
0
1
0
0
1
1
01
Logical Unit Number
Reserved (0)
02
Reserved (0)
03
Reserved (0)
04
Reserved (0)
05
Reserved (0)
I
Flag
1
Link
Figure 6-21.
WRITE DATA BUFFER Command
This command serves buffer RAM diagnostic purposes. The control-
ler will fill the buffer with 4K bytes of data from the host.
There is no guarantee that this data wi
11
not be overwritten by
other operations initiated by other Initiators.
500504-00
6-29
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