5-14 Maxtor Atlas 10K V
Table 5-11 FORMAT UNIT Command Descriptor Block-Data Format
Table 5-12 FORMAT UNIT Command-Field Descriptions
Bit
Byte
765 4 3210
0 Operation Code (04h)
1 Reserved Fmt Data Cmp
List
Defect List Format
2 Vendor-Specific
3 - 4 Interleave
5 Control
Field Description
FmtData
Format Data. When the Format Data value is 1, it indicates that a data-out buffer transfer
occurs as part of the command execution. The FORMAT UNIT Parameter list (consist-
ing of a Defect List Header and, optionally, a number of Block Format Defect Descrip-
tors) is passed to the device during this phase.
When the Format Data value is 0, the data-out buffer transfer does not occur.
CmpLst
Complete List. When the Complete List value is 1, the drive deletes its current Grown
Defect List and starts a new one, containing the Logical Block Numbers listed in the de-
fect list supplied by the initiator during this format operation are added to the list, cre-
ating a new Grown Defect List.
When the Complete List value is 0, the drive adds initiator-supplied and newly found
defective Logical Block Numbers to the existing Grown Defective List.
Defect List Format
The Defect List Format value specifies the defect descriptor passed by the initiator to
the drive when the Format Data value is 1. Acceptable values are:
000b (Block [or Sector] Format)
100b (Index Format)
101b (Physical Sector Format)
Vendor-Specific Not supported. Must be 0.
Interleave Not supported. Ignored by the drive.
