Maxtor 10K V 5.14MODE SENSE (6) Command (1Ah)

5.14MODE SENSE (6) Command (1Ah)

The MODE SENSE (6) command allows the initiator to read the drive's sector descriptor and mode pages. The MODE SENSE Command Descriptor Sector is shown in Table 5-89and the data fields are described in Table 5-90.The Mode Parameter Header is shown in Table 5-91and the data fields are described in Table 5-92.

Table 5-89MODE SENSE (6) Command Descriptor Block-Data Format

Bit	7		6		5	4		3		2	1	0
Byte
0						Operation Code (1Ah)
1				Reserved				DBD			Reserved
2		PC						Page	Code
3						Sub Page Code
4						Allocation Length
5							Control

Table 5-90MODE SENSE Command-Field Descriptions

Data Field		Description
DBD	Disable Block Descriptor. When the value is 0, the drive returns its Block Descriptor
	followed by the requested page(s). When the value is 1, the drive returns only the re-
	quested pages.
	Page Control. Determines which type of page values are returned. These values are:
PC	00b	Current
	01b	Changeable
	10b	Default
	11b	Saved
	The Page Code field determines the pages to be returned to the initiator in the com-
Page Code	mand's data-in buffer transfer. Refer to Table 5-49and Table 5-93for a complete list of
	the Mode Pages (changeable and read-only). A Page Code of 3Fh causes all supported
	pages to be returned.
Sub Page Code	The Sub Page Code field determines the sub pages to be returned to the initiator in the
	command's data-in buffer transfer. A Sub Page Code of 0xFF causes all supported sub
	pages to be returned.

Table 5-91Mode Parameter Header (6 Byte)-Data Format

Bit	7	6	5	4	3	2	1	0
Byte
0				Mode Data Length
1				Medium Type
2				Device-Specific Parameter
3				Block Descriptor Length

Maxtor Atlas 10K V 5-65