Quantum ATL SuperLoader ATL, User Manual

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Chapter 2 Messages
Supported SCSI Messages
Quantum ATL SuperLoader Software Interface Guide 17
Figure 3 Ignore Wide
Residue Message
Table 6 Ignore Wide
Residue
Initiator Detected
Error (05h)
2
The INITIATOR DETECTED ERROR message is sent from an
initiator to inform the SuperLoader that an error has occurred that
does not preclude the SuperLoader from retrying the operation (a
bus parity error, for example). The source of the error may either
be related to previous activities on the SCSI bus or may be only
SuperLoader-related. When received, the SuperLoader attempts to
re-transfer the last command, data, or status bytes by using the
RESTORE POINTER message mechanism.
The SuperLoader’s response to and its handling of an INITIATOR
DETECTED ERROR message are based on when, in the I/O
process, the initiator introduces the message. Table 7 summarizes
the SuperLoader’s response.
Bit
Byte
7 6 5 4 3 2 1 0
0
Message Code (23h)
1
Ignore (01h)
Ignore Invalid Data Bits (16-bit Transfers)
00h Reserved
01h DB(15-8)
02h - FFh Reserved