Host Interface

Each field value of Block Descriptor is valid only when accessible media is inserted. If accessible media is not inserted, 0 is returned.

Table 4.36 shows the format of the Mode Page field.

Table 4.36 Mode Page

Bit

7

6

5

4

3

2

1

0

Byte

 

 

 

 

 

 

 

 

0

PS

0

 

 

Page Code

 

 

1

 

 

 

Page Length (n-1)

 

 

 

 

 

 

 

 

 

 

 

2-n

 

 

 

Mode Parameters

 

 

 

 

 

 

 

 

 

 

 

 

If PS is 1, page data can be saved to flash ROM.

4.3.6 START/STOP UNIT command

Table 4.37 START/STOP UNIT command

Bit

7

6

5

 

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation Code (1Bh)

 

 

 

1

 

LUN

 

 

 

 

Reserved

 

 

IMMED

 

 

 

 

 

 

 

 

 

 

2-3

 

 

 

 

 

Reserved

 

 

 

4

 

 

 

Reserved

 

 

 

 

LoEj

Start

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The START/STOP UNIT command ejects media or starts or stops rotating the disk.

If the Immediate (IMMED) bit is 1, command completion is reported before processing is completed.

Table 4.38 lists the types of processing performed depending on the values specified for LoEj and Start.

 

 

Table 4.38 Start, stop, and eject processing

 

 

 

LoE

Start

Processing

j

 

 

0

0

Stops disk rotation.

0

1

Starts disk rotation and checks the type of media format.

 

 

 

1

0

Ejects media, if possible.

1

1

Ends with an error (ILLEGAL REQUEST).

 

 

 

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Fujitsu MCJ3230SS manual START/STOP Unit command, Mode, Start, stop, and eject processing