Product manual

SCSI Description
Maxtor Atlas 10K IV 5-69
5.17 MODE SENSE (10) COMMAND (5Ah)
The MODE SENSE command allows the initiator to readthe drive’s sector descriptor
and mode pages.
See Table 5-100 for MODE SENSE (10) Command Descriptor Block – Data Format,
Table 5-101 for Mode Parameter Header (10 Byte) — Data Format, and Table 5-102
for Mode Parameter Block Descriptor – Data Format. Refer to Table 5-92,Table 5-
94, and Table 5-103 for descriptions of the fields.
Table 5-100 MODE SENSE (10) Command Descriptor Block-Data Format
Table 5-101 Mode Parameter Header (10 Byte)-Data Format
Field Descriptions for the Mode Parameter Header are given in the table that follows.
Table 5-102 Mode Parameter Block Descriptor-Data Format
Bit
Byte
7654321 0
0 Operation Code (5Ah)
1 Reserved DBD Reserved
2PC PageCode
3 Sub Page Code
4–6 Reserved
7–8
(MSB)
Allocation Length
(LSB)
9 Control
Bit
Byte
7654321 0
0-1
(MSB)
Mode Data Length
(LSB)
2MediumType
3 Device-Specific Parameter
4 - 5 Reserved
6 - 7 Block Descriptor Length
Bit
Byte
765 4 3210
0-3
(MSB)
Number of Blocks
(LSB)
4 Density Code
5-7
(MSB)
Block Length
(LSB)