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13.26 Seek (7xh)
see below
Status
0 1 1 1 - - - -
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
-
V
0
V
0
0
0
V
0
V
0
0
0
ERR
IDX
COR
DRQ
DSC
DF
RDY
BSY
AMN
T0N
ABT
0
IDN
0
UNC
CRC
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Status Register
Error Register
Figure 115. Seek command (7xh)
The Seek command initiates a seek to the designated track and selects the designated head. The device
does not need to be formatted for a seek to execute properly.
Output parameters to the device
Sector Number
In LBA mode this register specifies the LBA address bits 0–7 for seek. (L = 1)
Cylinder High/Low
This is the cylinder number of the seek. In LBA mode this register specifies the
LBA address bits 8–15 (Low) and bits 16–23 (High) for seek. (L = 1)
H
This indicates the head number of the seek. In LBA mode this register specifies
the LBA address bits 24–27 for seek. (L = 1)
Input parameters from the device
Sector Number
In LBA mode this register contains the current LBA bits 0–7. (L = 1)
Cylinder High/Low
In LBA mode this register contains the current LBA bits 8–15 (Low) and
bits 16–23 (High). (L = 1)
H
In LBA mode this register contains the current LBA bits 24–27. (L = 1)
Travelstar 60GH & 40GN hard disk drive specifications
157
Содержание IC25N040ATCS04 - Travelstar 40 GB Hard Drive
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