Hitachi HDT725025VLA380 Specifications - Page 193

In LBA mode, this register contains current LBA bits 24-27. L = 1

Page 193 highlights

Input parameters from the device Sector Count This indicates the number of requested sectors not transferred Sector Number This indicates the sector number of the transferred sector. (L = 0) In LBA mode, this register contains current LBA bits 0-7. (L = 1) Cylinder High/Low This indicates the cylinder number of the transferred sector. (L = 0) In LBA mode, this register contains current LBA bits 8-15 (Low), 16-23 (High). (L = 1) H This indicates the head number of the transferred sector. (L = 0) In LBA mode, this register contains current LBA bits 24-27. (L = 1) It should be noted that the device internally uses 52 bytes of ECC data on all data written or read from the disk. The 4 byte mode of operation is provided via emulation. It is recommended that for testing the effectiveness and integrity of the devices ECC functions that the 52 byte ECC mode should be used. Deskstar T7K500 Hard Disk Drive Specification 179

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Deskstar T7K500 Hard Disk Drive Specification
179
Input parameters from the device
Sector Count
This indicates the number of requested sectors not transferred
Sector Number
This indicates the sector number of the transferred sector. (L = 0)
In LBA mode, this register contains current LBA bits 0–7. (L = 1)
Cylinder High/Low
This indicates the cylinder number of the transferred sector. (L = 0)
In LBA mode, this register contains current LBA bits 8–15 (Low), 16–23 (High). (L = 1)
H
This indicates the head number of the transferred sector. (L = 0)
In LBA mode, this register contains current LBA bits 24–27. (L = 1)
It should be noted that the device internally uses 52 bytes of ECC data on all data written or read from the disk. The
4 byte mode of operation is provided via emulation. It is recommended that for testing the effectiveness and integ-
rity of the devices ECC functions that the 52 byte ECC mode should be used.