13.26 Seek (7xh)
see belowStatus0 1 1 1 – – – –Command
– – – – H H H HDevice/Head1 L 1 D H H H HDevice/Head
V V V V V V V VCylinder HighV V V V V V V VCylinder High
V V V V V V V VCylinder LowV V V V V V V VCylinder Low
V V V V V V V VSector NumberV V V V V V V VSector Number
– – – – – – – –Sector Count– – – – – – – –Sector Count
see belowError– – – – – – – –Feature
– – – – – – – –Data– – – – – – – –Data
7 6 5 4 3 2 1 0Register7 6 5 4 3 2 1 0Register
Command Block Input RegistersCommand Block Output Registers
V–0–V0V000V0V000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError Register
Figure 103. 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 32GH/30GT/20GN hard disk drive specifications
151
To Next Page
Loading...
