Caching Page 08H - HP 2600fx - Optical Disk Drive Command Reference Manual

Table 2-53
SCSI-2 Drive Command Set
Mode Sense (Group 0) Command (1AH)

Caching Page 08H

Caching Page 08H
Byte 7
0 PS Rsvd
(1) (0)
1
2
3
4 Disable Pre-fetch Transfer Length (MSByte)
5 Disable Pre-fetch Transfer Length (LSByte)
6
7
8
9
10 Maximum Pre-fetch Ceiling Length (MSByte)
11 Maximum Pre-fetch Ceiling Length (LSByte)
PS The Parameters Savable bit of 1 indicates this
parameter page is savable in non-volatile RAM.
WCE A Write Cache Enable bit of 1 indicates write caching is
enabled.
A WCE bit of 0 indicates write caching is disabled.
MF The Multiplication Factor bit is set to 1 and cannot be
changed. This bit is set to the Minimum and Maximum
Pre-Fetch fields during READ operations. If this bit is
set to 0 by the MODE SELECT command, a CHECK
CONDITION status is returned with the sense key/
additional sense code set to ILLEGAL REQUEST/
Invalid Parameter List.
2-60
6 5 4
Page Length (0AH)
Reserved (0)
Reserved (0)
Minimum Pre-fetch (MSByte)
Minimum Pre-fetch (LSByte)
Maximum Pre-fetch (MSByte)
Maximum Pre-fetch (LSByte)
3 2 1
Page Code (08H)
WCE MF
0
RCD
Chapter 2