Format Track (50H: Vendor Specific); Figure 83. Format Track Command (50H) - IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive Specifications

13.6 Format Track (50h: vendor specific)

Command Block Output Registers
Register
Data
Feature
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
Error Register
7 6 5
CRC UNC 0
0 0 0

Figure 83. 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 the write operation. At this time, the read operation is not verified for
the correct sector of data initialization. Any data previously stored on the track will be lost.
Output Parameters To The Device
Sector Number
Cylinder High/Low
H
Input Parameters From The Device
Sector Number
Cylinder High/Low
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
V V V V V V V V
V V V V V V V V
V V V V V V V V
1 L 1 D H H H H
0 1 0 1 0 0 0 0
4 3 2 1
IDN 0 ABT T0N AMN
V 0 V 0
In LBA mode this register specifies that LBA address bits 0–7 are to be
formatted. (L = 1)
This indicates the cylinder number of the track to be formatted. (L = 0)
In LBA mode this register specifies that LBA address bits 8–15 (Low) and bits
16–23 (High) are to be formatted. (L = 1)
This indicates the head number of the track to be formatted. (L = 0)
In LBA mode this register specifies that LBA address bits 24–27 are to be
formatted. (L=1)
In LBA mode this register specifies the current LBA address bits as 0–7 (L = 1).
In LBA mode this register specifies the current LBA address bits as 8–15 (Low)
and bits 16–23 (High).
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
Command Block Input Registers
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
Status Register
0 7 6 5
BSY RDY DF
0 0 V V
121
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
V V V V V V V V
V V V V V V V V
V V V V V V V V
- - - - H H H H
see below
4 3 2 1
DSC DRQ COR IDX ERR
V - 0 -
0
V