Hitachi IC25N040ATCS04-0 - Travelstar 40GN 40GB UDMA/100 4200RPM 2MB 2.5" IDE Hard Drive Specifications page 149

Input parameters from the device
Sector Count
Sector Number
Cylinder High/Low
H
This indicates the number of requested sectors not transferred. This will be zero,
unless an unrecoverable error occurs.
This indicates the sector number of the last transferred sector. (L = 0)
In LBA mode this register contains the current LBA bits 0–7. (L = 1)
This indicates the cylinder number of the last transferred sector. (L = 0)
In LBA mode this register contains the current LBA bits 8–15 (Low) and
bits 16–23 (High). (L = 1)
This indicates the head number of the sector to be transferred. (L = 0) In LBA
mode this register contains the current LBA bits 24–27. (L = 1)
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
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