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| Chapter 6 Target Mode |
Page 6 - 22 | Target Mode Response Command Status Block |
Error Sequence Code - The Error Sequence Code tells you, according to the following table, where in the process an unrecoverable error occurred, or a Message Byte was sent from the initiator.
Sequence | Description |
0No message was received.
1Message received after the RF3880 sent the First Message Byte.
2Message received after sending the Message Byte.
3Message received after sending the Queue Tag Message.
4Message received after a Data Transfer phase.
5Message received after Selection phase.
6Message received after sending the Identify message.
7Message received after a Command phase.
8Message received in response to SDTR message.
9Message received in response to WDTR message.
Table 56: Target Mode Error Sequence Codes
Command Descriptor Block Length
This byte indicates the number of command bytes that were received from the initiator, and have been passed on in the CDB fields of the Target Mode Response command Status Block. If the CMD bit is clear (in the Command Status Flags field), this field is invalid.
Message Byte Received
At any time, the initiator may assert ATN, and cause the adapter to read in a Message byte in response. The adapter will place the Message Byte in this field and return the proper status. If the MSG bit is clear (in the Command Status Flags field), this field is invalid. Also, the value of the Error Sequence Code must be considered when examining the Message Byte. The Error Sequence Code describes where in the process the Message Byte was sent from the initiator.
SCSI CDB fields
These bytes contain the SCSI 6, 10, or 12 byte command received from the initiator as a result of the CMD bit or the LSC bit in the Target Mode Response command Response Control Flags field being set. If the CMD bit is clear (in the Command Status Flags field), this field is invalid.
21020285 D | User’s Guide |