SimpleTech ZeusIOPS Code Field Descriptions for Mode Sense, Bit Byte Operation Code 5Ah Reserved

Page 50

MODE SENSE (10) COMMAND (5Ah)

The MODE SENSE (10) command provides a means for a target to report parameters to the initiator. It is complementary to the MODE SELECT (10) command. Byte 9 is ignored.

 

 

 

 

Table 27.

Mode Sense (10) Command (5Ah)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

7

 

6

 

5

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

Operation Code (5Ah)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

0

 

0

 

0

Reserved

 

DBD

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

PCF

 

 

 

 

Page Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

(MSB)

 

 

 

 

Allocation Length

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

(LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A Disable Block Descriptors (DBD) bit of zero indicates that the target may return zero or more block descriptors in the returned MODE SENSE data, at the target's discretion. A DBD bit of one specifies that the target shall not return any block descriptors in the returned MODE SENSE data. The page control (PC) field defines the type of mode parameter values to be returned in the mode pages. The page code specifies which mode page to return.

Table 28. Page Code Field Descriptions for Mode Sense (10)

Page Code

Description

Subclause

 

 

 

00h

Vendor-specific (does not require page format)

 

 

 

 

01h - 1Fh

See specific device types

 

 

 

 

20h - 3Eh

Vendor-specific (page format required)

 

 

 

 

3Fh

Return all mode pages

 

 

 

 

50

ZeusIOPS 3.5-Inch Fibre Channel Solid State Drive Product Manual Rev. 1.0

Image 50
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