Hitachi 7K80 - Deskstar - Hard Drive Specifications page 166

Input parameters from the device
Sector Count
Sector Number
Cylinder High/Low This indicates the cylinder number of the transferred sector. (L = 0)
H
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.
This indicates the number of requested sectors not transferred
This indicates the sector number of the transferred sector. (L = 0)
In LBA mode, this register contains current LBA bits 0–7. (L = 1)
In LBA mode, this register contains current LBA bits 8–15 (Low), 16–23 (High). (L = 1)
This indicates the head number of the transferred sector. (L = 0)
In LBA mode, this register contains current LBA bits 24–27. (L = 1)
Deskstar 7K80 Hard Disk Drive Specification
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