15.4 Format Track (50h)
see below
Status
0 1 0 1 0 0 0 0
Command
- - - - H H H H
Device/Head
1 L 1 D H H H H
Device/Head
V V V V V V V V
Cylinder High
V V V V V V V V
Cylinder High
V V V V V V V V
Cylinder Low
V V V V V V V V
Cylinder Low
V V V V V V V V
Sector Number
V V V V V V V V
Sector Number
- - - - - - - -
Sector Count
- - - - - - - -
Sector Count
see below
Error
- - - - - - - -
Feature
- - - - - - - -
Data
- - - - - - - -
Data
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Register
Command Block Input
Registers
Command Block Output
Registers
V–0–VVV000V0V000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError Register
Figure 81. Format Track Command (50h)
The Format Track command formats a single logical track on the device. Each good sector of data on the
track will be initialized to zero with a write operation. At this time the sector of data is not verified with
read operation whether the sector of data is initialized correctly. Any data previously stored on the track
will be lost.
The host may transfer a sector of data containing a format table to the device. But the device ignores the
format table and writes zero to all sectors on the track regardless of the descriptors.
Since device performance is optimal at 1:1 interleave and the device uses relative block addressing
internally, the device will always format a track in the same way no matter what sector numbering is
specified in the format table.
Output parameters to the device
Sector Number
In LBA mode this register specifies LBA address bits 0–7 to be formatted. (L=1)
Cylinder High/Low
The cylinder number of the track to be formatted. (L=0)
In LBA mode this register specifies LBA address bits 8–15 (Low), 16–23 (High)
to be formatted. (L=1)
H
The head number of the track to be formatted. (L=0)
In LBA mode this register specifies LBA address bits 24–27 to be formatted.
(L=1)
Deskstar 60 GXP Hard disk drive specification
108
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