Mode Sense (Group 0) Command (1Ah) - HP 2600fx - Optical Disk Drive Command Reference Manual

Table 2-47
SCSI-2 Drive Command Set

Mode Sense (Group 0) Command (1AH)

Mode Sense (Group 0) Command (1AH)
This command is used to acquire optical disk, drive, and drive controller
parameters.
Mode Sense (Group 0) Command CDB
Byte 7 6
0
1 Logical Unit Number
(0)
2 PC
3
4
5
DBD A Disable Block Descriptors bit of 1 indicates that no
block descriptor is provided.
A DBD bit of 0 indicates that the block descriptor is
provided.
PC Page control defines the type of parameter values to be
returned as follows:
00 - Current Values
01 - Changeable Values
10 - Default Values
11 - Saved Values
Page Code Page code values are the same as for the Mode Select
command. If 00H or 3FH is specified, all pages are
returned.
2-54
5 4 3
Operation Code (1AH)
Rsvd DBD
(0)
Page Code (Table 2-50 on page 2-56)
Reserved (0)
Allocation Length
Reserved (0)
2 1 0
Rsvd (0)
Flag Link
Chapter 2