Emerson MVME147 User Manual

Page of 170
Request Sense Data Packet
7-63
7
Request Sense Data Packet
The request sense data command ($03) returns the status of the controller.  The 
maximum length parameter and the data pointer are used to return this status.  
The actual format and the number of bytes returned is controller- specific.  
Refer to the appropriate controller manual for information.  
The table below shows the request sense data packet.  
Even Byte \
Odd Byte \
$18
xxxxxxxx
Status from SCSI 
firmware (byte 2) 
(Note 1)
$19
xxxxxxxx
Status from SCSI 
firmware (byte 3) 
(Note 1)
NOTE:
1.
Refer to Chapter 3.
FC
B8
74
30
+$00
Controller LUN
Device LUN
+$02
Status Byte 0
Status Byte 1 (Note 1)
+$04
0
0
Maximum Data Length
+$06
Returned Data Pointer (MSW)
+$08
Returned Data Pointer (LSW)
+$0A
0
0
0
0
+$0C
0
0
0
0
+$0E
0
0
0
0
+$10
0
0
0
0
+$12
0
0
0
0
+$14
0
0
Function Code (5C)
+$16
Interrupt Level
Vector Number
+$18
Status Byte 2
Status Byte 3 (Note 1)