Table of Contents
Advertisement
5
COMMAND DESCRIPTIONS
5.1
FORMAT UNIT:(04
Bit
Byte
0
1
Logical Unit Number
2
3
4
5
Vendor Unique
The FORMAT UNIT command formats the medium so that all of the addressable
data blocks can be accessed by the host.
after the FORMAT UNIT command is initiated by the controller.
The controller formats the media in accordance with the current value of MODE
SELECT parameter (see 5.5 MODE SELECT) established and the media defect
management schemes specified from the host computer by this command.
It is recommended that the MODE SELECT parameters should be set properly prior
to the issuance of FORMAT UNIT command.
A FORMAT UNIT command must be sent if the block length or the number of
alternate spare areas are changed.
If FORMAT UNIT command is completed abnormally after formatting is started, the
command accesses to medium after FORMAT UNIT command is terminated with
CHECK CONDITION status, then the controller sets the sense key to NOT READY
with the additional sense code of FORMAT COMMAND FAILED.
There are four defect management schemes, namely, P, C, D and G.
< P = Primary Defect List >
This list refers to the list of defects that are considered as permanent flaws.
This list is recorded in a specific location on the device by the manufacturer of
the device.
FORMAT UNIT:(04h)
5 COMMAND DESCRIPTIONS
)
H
7
6
5
0
0
0
0
0
0
4
3
Operation Code (04
H
0
0
FmtData
CmpLst
Certification Pattern
Interleave (MSB)
Interleave (LSB)
Reserved
0
0
Any existing data on the medium is lost
OEM MANUAL:K6602924
2
1
)
1
0
Defect List Format
Flag
Link
0
Revision: 1 / Date: 2003.03.06
Page: 69 / 273
0
0
Advertisement
Table of Contents
