Hitachi C4K60 Specifications - Page 96

Seek [7Xh]

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7.5.34. Seek [7Xh] Task File Registers Command LBA High LBA Mid LBA Low Device/Head Sector Count Features 7 6 5 4 3 2 1 0 7Xh L = 0: Cylinder number bit 15 - 8 L = 1: 28-bit LBA address bit 23 - 16 L = 0: Cylinder number bit 7 - 0 L = 1: 28-bit LBA address bit 15 - 8 L = 0: Sector number L = 1: 28-bit LBA address bit 7 - 0 X L X DRV L = 0: Head Number L = 1: 28-bit LBA address bit 27-24 XX XX The SEEK command initiates a seek operation to the track specified in the Command Block Registers. The device returns the interrupt before completion of a seek operation. If another command is issued to the device while a seek operation is being executed, the device sets BSY, waits for the seek to complete, and then begins execution of the command. K6610170 Rev.2 Dec 22, 2004 - 96 -

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K6610170
Rev.2
Dec 22, 2004
- 96 -
7.5.34. Seek [7Xh]
Task File Registers
7
6
5
4
3
2
1
0
Command
7Xh
LBA High
L = 0: Cylinder number bit 15 - 8
L = 1: 28-bit LBA address bit
23 - 16
LBA Mid
L = 0: Cylinder number bit 7 - 0
L = 1: 28-bit LBA address bit
15 - 8
LBA Low
L = 0: Sector number
L = 1: 28-bit LBA address bit 7 - 0
Device/Head
X
L
X
DRV L = 0:
Head Number
L = 1:
28-bit LBA address
bit 27-24
Sector Count
XX
Features
XX
The SEEK command initiates a seek operation to the track specified in the Command Block Registers. The
device returns the interrupt before completion of a seek operation. If another command is issued to the
device while a seek operation is being executed, the device sets BSY, waits for the seek to complete, and
then begins execution of the command.