IBM IC35L020 - Deskstar 20 GB Hard Drive - Seek (7 Xh); Figure 107. Seek Command (7 Xh)

15.26 Seek (7xh)
see below
Status
0 1 1 1 - - - -
Command
- - - - - - - -
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–V0V000V0V000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError Register
Figure 107. Seek Command (7xh)
The Seek command initiates a seek to the designated track and selects the designated head. The device
need not be formatted for a seek to execute properly.
Output parameters to the device
Sector Number
In LBA mode this register specifies LBA address bits 0–7 for seek. (L=1)
Cylinder High/Low
The cylinder number of the seek.
In LBA mode this register specifies LBA address bits 8–15 (Low), 16–23 (High)
for seek. (L=1)
H
The head number of the seek.
In LBA mode this register specifies LBA address bits 24–27 for seek. (L=1)
Input parameters from the device
Sector Number
In LBA mode this register contains current LBA bits 0–7. (L=1)
Cylinder High/Low
In LBA mode this register contains current LBA bits 8–15 (Low), 16–23 (High).
(L=1)
H
In LBA mode this register contains current LBA bits 24–27. (L=1)
Deskstar 60 GXP Hard disk drive specification
146