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Maxtor Atlas 10K V 5-71
5.15 MODE SENSE (10) COMMAND (5Ah)
The MODE SENSE command allows the initiator to read the drive’s sector descriptor
and mode pages.
See Table 5-98 for MODE SENSE (10) Command Descriptor Block – Data Format,
Table 5-99 for Mode Parameter Header (10 Byte) — Data Format, and Table 5-100
for Mode Parameter Block Descriptor – Data Format. Refer to Table 5-90,Table 5-
92, and Table 5-101 for descriptions of the fields.
Table 5-98 MODE SENSE (10) Command Descriptor Block-Data Format
Table 5-99 Mode Parameter Header (10 Byte)-Data Format
Field Descriptions for the Mode Parameter Header are given in the table that follows.
Table 5-100 Mode Parameter Block Descriptor-Data Format
Bit
Byte
7654321 0
0 Operation Code (5Ah)
1 Reserved DBD Reserved
2PC Page Code
3 Sub Page Code
4 – 6 Reserved
7 – 8
(MSB)
Allocation Length
(LSB)
9Control
Bit
Byte
7654321 0
0 - 1
(MSB)
Mode Data Length
(LSB)
2 Medium Type
3 Device-Specific Parameter
4 - 5 Reserved
6 - 7 Block Descriptor Length
Bit
Byte
765 4 3210
0 - 3
(MSB)
Number of Blocks
(LSB)
4Density Code
5 - 7
(MSB)
Block Length
(LSB)