Ciprico Rimfire 3880 사용자 설명서
21020285 D
User’s Guide
Chapter 6 Target Mode Pass-through Commands
Page 6 - 10
Target Selection Data Structure
Target
Selection Data
Structure
Selection Data
Structure
The Target Selection Data Structure is used by the adapter to give the Host
driver information about the transaction requested of the adapter by a SCSI
initiator.
driver information about the transaction requested of the adapter by a SCSI
initiator.
The address of the area reserved by the Host to accommodate the Target
Selection Data Structure, is passed to the RF3880 in the Target Mode Enable
command (described in Chapter 7). The structure has the following format:
Selection Data Structure, is passed to the RF3880 in the Target Mode Enable
command (described in Chapter 7). The structure has the following format:
To buffer Host operations from Target Mode operations, information destined
for the Target Selection Data Structure is queued by the RF3880, as initiator
selections occur on the SCSI bus. Information from about sixty selections from
initiators can be queued at a time. See Chapter 8 for more information about
the Selection Queue.
for the Target Selection Data Structure is queued by the RF3880, as initiator
selections occur on the SCSI bus. Information from about sixty selections from
initiators can be queued at a time. See Chapter 8 for more information about
the Selection Queue.
Command Identifier
The Command Identifier that labels the Target Mode Enable command is
copied by the adapter into the Target Selection Data Structure when a selection
occurs. The Host driver may use this for verification of the source of the
selection data.
copied by the adapter into the Target Selection Data Structure when a selection
occurs. The Host driver may use this for verification of the source of the
selection data.
Address
Offset
Byte Memory Address
Offset + 0
Offset + 1
Offset + 2
Offset + 3
00H
Command Identifier
04H
SCSI flags
Reserved
Error
Flags
08H
Msg Byte Rcd
CDB Length
Init ID
ID Msg Received
0CH
Queue Tag Msg
Queue Tag ID
Reserved
10H
SCSI CDB Received
14H
SCSI CDB Received
18H
SCSI CDB Received
1CH
Reserved
Semaphore
Table 44: Target Selection Data Structure