SCSI interface
41
SCSI status codes
4-bit Status Code
Bits
4
3
2
1
0
Definition
0
0
0
0
X
Good Status
0
0
0
1
X
Check Condition
0
1
0
0
X
Busy
1
0
0
0
X
Intermediate Status
1
1
0
0
X
Reservation Conflict
SCSI-2 commands
Code
Command
00h
Test Unit Ready
01h
Rewind
03h
Request Sense
05h
Read Block Limits
08h
Read
0Ah
Write
0Bh
Set Capacity
10h
Write Filemarks
11h
Space
12h
Inquiry
13h
Verify
15h
Mode Select (6-byte version)
16h
Reserve Unit (6-byte version)
17h
Release Unit (6-byte version)
19h
Erase
1Ah
Mode Sense (6-byte version)
1Bh
Load/Unload
1Ch
Receive Diagnostic Results
1Dh
Send Diagnostic
1Eh
Prevent/Allow Medium Removal
2Bh
Locate
34h
Read Position
3Bh
Write Data Buffer
3Ch
Read Data Buffer
4Ch
Log Select
4Dh
Log Sense