4.6 Packet Commands

4.6.2 FORMAT UNIT command

Table 4.40 FORMAT UNIT command

Bit

7

6

5

 

4

3

 

2

 

1

 

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

Operation Code (04h)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

Reserved

 

 

FmtData

CmpList

 

 

Defect List Format

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3-4

 

 

 

 

Interleave

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5-11

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The FORMAT UNIT command formats media physically on the basis of the specified parameter values.

When the FmtData bit is 1, the FORMAT UNIT parameter list must be transferred. Defect List Format is ignored.

When the FmtData bit is 0, the ODD does not transfer the FORMAT UNIT parameter list and formats media using the internal default values instead.

The CmpList is ignored.

The interleaving is set to the internal default value even if a value is specified.

Table 4.41 FORMAT UNIT parameter list

Bit

7

 

6

 

5

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0-3

 

 

 

 

 

Defect List Header

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 4.42 Defect list header

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

7

 

6

 

5

4

 

3

 

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

Reserved

 

DCRT

 

 

Reserved

 

IMMED

Reserved

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

Defect List Length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When the DCRT (Disable Certification) bit is 1, the ODD formats media without checking it.

C156-E205-01EN

4-41

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Image 113
Fujitsu MCJ3230AP manual Format Unit command, Format Unit parameter list