Table 1.22 Spi Command Information Unit; Task Attribute; Task Management Functions; Table 1.23 Task Attribute - Fujitsu MBA3073 SERIES Technical Manual

Bit
7
Byte
0
1
2
3 ADDITIONAL CDB LENGTH = (number of additional CDB bytes)/4 RDDATA WRDATA
4
19
20
N
(MSB)
n+1
n+2
n+3
n+4
The TASK ATTRIBUTE field is defined in table 1.23.
Codes Description
Requests that the task be managed according to the rules for a simple task attribute.
000b
(See the SCSI Architecture Model-2 standard)
Requests that the task be managed according to the rules for a head of queue task
001b
attribute. (See the SCSI Architecture Model-2 standard)
Requests that the task be managed according to the rules for an ordered attribute.
010b
(See the SCSI Architecture Model-2 standard)
011b Reserved
Requests that the task be managed according to the rules for an automatic contingent
100b
allegiance task attribute. (See the SCSI Architecture Model-2 standard)
101b-111b Reserved
The TASK MANAGEMENT FUNCTIONS field is defined in table 1.24. If a task management
function fails the task manager shall terminate the task with a GOOD status. The packetized
failure code shall be set to TASK MANAGEMENT FUNCTION FAILED.
1-53
Table 1.22 SPI command information unit
6 5 4
Reserved

TASK MANAGEMENT FUNCTIONS

ADDITIONAL CDB
Table 1.23

TASK ATTRIBUTE

3 2
Reserved
TASK ATTRIBUTE
CDB
IUCRC
1 0
(LSB)
C141-C007