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User’s Guide 21020285 D
Chapter 6 Target Mode Pass-through Commands
Target Mode Response Command Status Block Page 6 - 21
Command Status Flags
This byte indicates the status of the current command, and of the SCSI bus.
You must use it to check for certain conditions that may have occurred and
need specific action. The format is as follows:
DIS Disconnect - The bit indicates whether the adapter has disconnected
from the SCSI bus while processing this command.
0 ⇒ The adapter has not disconnected.
1 ⇒ The adapter has disconnected to process this command.
CHK Check Condition - Because of an error condition, the RF3880 may
attempt to send a Check Condition status followed by a Command Complete
message to the initiator.
0 ⇒ No Check Condition status was sent.
1 ⇒ A Check Condition status and Command Compete message to the initiator
was attempted.
MSG Message - The adapter (as Target) may receive a Message from the
initiator. This bit indicates whether a Message was sent and can be found in the
Message Byte Received field.
0 ⇒ No Message Byte was received.
1 ⇒ The Message Byte Received field contains a valid Message from the
initiator.
CMD Command Bytes Received - This bit indicates whether the adapter
has placed SCSI Command Bytes into the CDB Received area of the Target
Mode Response command Status Block(s).
0 ⇒ No SCSI commands were received.
1 ⇒ A SCSI command was received and the CDB Length and CDB Received
areas are valid.
BITS
76543210
Error Sequence Code CMD MSG CHK DIS
Table 55: Meaning of Command Status Flags Field