3 format unit command – FUJITSU MCM3064AP User Manual
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4.6 Packet Commands
C156-E227-01EN
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4.6.3 FORMAT UNIT command
Table 4.39 FORMAT UNIT command
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (04h)
1
Logical Unit Number
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 4.40 FORMAT UNIT parameter list
Bit
Byte
7
6
5
4
3
2
1
0
0-3
Defect List Header
Table 4.41 Defect list header
Bit
Byte
7
6
5
4
3
2
1
0
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.