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Chapter 7 SCSI Interface
7.2. Message
7.2.1. Supported Messages
The autoloader supports the following messages.
Table 7.2.1.1 : Message Description
00h: TASK COMPLETE
The TASK COMPLETE message indicates that the autoloader has completed a
command and returned a valid status.
01h: EXTENDED MESSAGE
When returning multi-byte messages, they are returned in the following format.
Table 7.2.1.2 : Extended Message Format
Code
Description
Direction
IN
OUT
00h
TASK COMPLETE
*
01h
EXTENDED MESSAGE
*
*
02h
SAVE DATA POINTER
*
03h
RESETORE POINTERS
*
04h
DISCONNECT
*
05h
INITIATOR DETECTED ERROR
*
06h
ABORT
*
07h
MESSAGE REJECT
*
*
08h
NO OPERATION
*
09h
MESSAGE PARITY ERROR
*
0Ch
BUS DEVICE RESET
*
23h
IGNORE WIDE RESIDUE
*
80-C0h
IDENTIFY
*
*
Bit
Byte
7
6
5
4
3
2
1
0
0
Extended Message(01h)
1
Extended Message Length(n-1)
2
Extended Message Code
3-n
Extended Message Arguments