User's Guide

Chapter 3 Emulated DLT7000 SCSI Commands
Mode Select (6 /10) (15h / 55h)
174 Quantum DX-Series Software Interface Guide
Table 126 MODE
SELECT (6)/(10)
Command Descriptor
Block - Field
Descriptions
Mode Parameter
List
3
The figure shows the format of the Mode Parameter List that is passed by
the initiator to the tape drive during the command’s DATA OUT phase.
Table 127 MODE
SELECT (6) Mode
Parameter List - Data
Format
Bit/Byte 7 6 5 4 3 2 1 0
0-3
4-11
4-11 or
12 - n
Table 128 MODE
SELECT (10) Mode
Parameter List - Data
Format
Bit/Byte 7 6 5 4 3 2 1 0
0-7
8-15
8-n or
16 - n
Field Name Description
PF Page Format. The Page Format bit indicates that the
data sent by the host after the MODE SELECT header
and block descriptors complies with the definition of
pages in the SCSI-2 specification. The SCSI-1 format
will not be implemented so this bit must be set to 1. It
is an ILLEGAL REQUEST to have page parameters
while the PF bit is 0.
SP Save Parameters. Must be 0. If set, this bit instructs the
drive to save all savable pages, and this is not
supported on the tape drive.
Mode Parameter Header
Mode Parameter Block Descriptor (Optional)
Page(s) (Optional)
Mode Parameter Header
Mode Parameter Block Descriptor (Optional)
Page(s) (Optional)