IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive Specifications page 156

R
Input Parameters From The Device
Sector Count
Sector Number
Cylinder High/Low
H
The device internally uses 40 bytes of ECC data on all data written or read from the disk. The 4 byte mode
of operation is provided via an emulation. Use of the 40 byte ECC mode is recommended for testing the
effectiveness and integrity of the ECC functions of the device.
This indicates the retry bit. If it is set to one then retries are disabled.
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)
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)
This indicates the head number of the transferred sector. (L = 0) In LBA mode,
this register contains current LBA bits 24–27. (L = 1)
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
142