Fujitsu MBC2036RC, MBC2073RC Mode Sense command group 0 parameter configuration 2/2, Header

4.1 Control/Sense Commands

Table 4.17 MODE SENSE command (group 0) parameter configuration (2/2)

Sub Page Descriptor

Page

Header

	Bit		7			6	5	4	3	2	1	0
	Byte
	0			PS		SPF			Page Code
	1							Sub Page Code
	2							Page Length
	3
	4
					Parameter Field
~		~											~
~		~											~

n

(1) Header

a.Sense data length

This field indicates the length (number of bytes) of the parameter list (MODE SENSE data) which it is possible to transfer to the INIT by this command. The length of the "Sense data length" field itself is not included in this value. Also, a value for a portion of data with a length that is supported by the HDD is reported in this field for a parameter list of the type specified in the CDB regardless of the specification of the "Transfer byte length" field in the CDB. In order for the INIT to confirm that all the parameter list requested in the command has been transferred, it should check whether the value which has the length of the "Sense data length" field itself added to the value indicated in this field is less than the value specified in the "Transfer byte length" field.

b.Media type

X '00' (default type) is always reported in this field.

c.WP bit

When this bit is "1," it indicates that a write operation to the disk media is prohibited and when "0" is specified, it indicates that a write operation is permitted.

d.DPOFUA bit

When this bit is "0," it indicates that the HDD does not support the DPO and FUA bit. When this bit is "1," it indicates that the HDD supports the DPO and FUA bits.

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