Read toc (cd-rom mode) 43h, Pre-execution checks, Command descriptor block – HP Q153090901 User Manual
Page 131: Cdb fields, Read toc, Command descriptor block: cdb fields
READ TOC (CD-ROM mode) 43h
C
omm
an
ds
131
READ TOC
(CD-ROM mode)
43h
R
EAD TOC
transfers the Table of Contents data to the host.
Pre-execution checks:
If the drive is not in CD-ROM mode, the request will return
CHECK CONDITION
status with a sense
key Illegal Command.
The Track/Session Number must be set to 0 or 1. Any other value will result in
CHECK CONDITION
status with sense data as described in Illegal Field Checks.
Command descriptor block:
CDB fields:
Illegal Field
Fixed Bit
Flag Link
Bad LUN
Reservation
Deferred Error
Unit Attention
Media Access
Diagnostic Status
7
6
5
4
3
2
1
0
0
Operation Code (43h)
1
Logical Unit Number
Reserved (0)
MSF
RelAdr(0)
2
Reserved (0)
Format (0)
3
(MSB)
Reserved (0)
5
(LSB)
6
Track/Session Number
7
(MSB)
Allocation Length
8
(LSB)
9
Control
MSF
This flag is ignored.
Track/Session Number This may be set to 0 or 1. It does not affect the data returned.
Allocation Length
The maximum number of data bytes that may be returned.