Fujitsu M2488 manual Ignore Field Description, Initiator Detected Error code 05h

SCSI MESSAGES M2488 PRODUCT GUIDE

Table 3-2. Ignore Field Description

	INVALID DATA BITS
IGNORE
	32-BIT TRANSFERS	16-BIT TRANSFERS
00h	Reserved	Reserved
01h	DB (31-24)	DB (15-8)
02h	DB (31-16)	Reserved
03h	DB (31-8)	Reserved
04-FFh	Reserved	Reserved

3-2.8 INITIATOR DETECTED ERROR code 05h

This message is sent from an initiator to inform a target an error (e.g., parity error) has occurred that does not preclude the target from retrying the operation. Although present pointer integrity is not assured, a RESTORE POINTERS message or a disconnect followed by a reconnect, causes the pointers to be restored to their defined prior state.

The message is rejected unless it occurs immediately following a DATA or STATUS TRANSFER phase.

3-2.9 LINKED COMMAND COMPLETE code 0Ah

This message is sent by a target to an initiator to indicate the completion and execution of a linked command and status was sent. The initiator sets the pointers to the initial state for the next linked command.

3-2.10 LINKED COMMAND COMPLETE (WITH FLAG) code 0Bh

This message is sent from a target to an initiator to indicate the execution of a linked command, with the flag bit set to one, has completed and that status was sent. The initiator sets the pointers to the ini- tial state of the next linked command. Typically this message is used to cause an interrupt in the initi- ator between two linked commands.

3-2.11 MESSAGE PARITY ERROR code 09h

This message is sent from the initiator to the target to indicate one or more bytes in the last message it received had a parity error.

In order to indicate its intentions of sending this message, the initiator asserts the ATN signal prior to its release of ACK for the REQ/ACK handshake of the message that has the parity error. This pro- vides an interlock so the target can determine which message has the parity error.

The message is rejected unless it occurs immediately following a MESSAGE IN phase.

3-2.12 MESSAGE REJECT code 07h

This message is sent from either the initiator or target indicating the last message it received was inappropriate or was not implemented.

In order to indicate its intentions of sending this message, the initiator asserts the ATN signal prior to its release of ACK for the REQ/ACK handshake of the message that is to be rejected. If the target receives this message under any other circumstance, the target rejects this message.

3-8 CG00000-011503 REV. A April 1997