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C156-E142-02EN 4 - 39
4.6.3 FORMAT UNIT command
Table 4.40 FORMAT UNIT command
Bit
Byte
76543210
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. When the
FMtDAta bit is 1, the Defect List Format must be specified. Defect List Format can be 7 only.
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 bit must be 0. If it is 1, the command responds with Check Condition.
The interleaving is set to the internal default value even if a value is specified.
Table 4.41 FORMAT UNIT parameter list
Bit
Byte
76543210
0-3 Defect List Header
0-7 Format Descriptor
Table 4.42 Defect list header
Bit
Byte
76543210
0 Reserved
1 Reserved DCRT Reserved IMMED
Reserved
2-3 Defect List Length