IBM DTLA-305040 Hard Drive Specifications - Page 200

The drive internally uses 40 bytes of ECC on all data read or writes. The 4 byte mode of operation is pro

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Input parameters from the device Sector Count The number of requested sectors not transferred. Sector Number The sector number of the sector to be transferred. (L=0) In LBA mode this register contains current LBA bits 0 - 7. (L=1) Cylinder High/Low The cylinder number of the sector to be transferred. (L=0) In LBA mode this register contains current LBA bits 8 - 15 (Low), 16 - 23 (High). (L=1) H The head number of the sector to be transferred. (L=0) In LBA mode this register contains current LBA bits 24 - 27. (L=1) The drive internally uses 40 bytes of ECC on all data read or writes. The 4 byte mode of operation is provided via an emulation technique. As a consequence of this emulation it is recommended that the 40 byte ECC mode be used for all tests to confirm the operation of the ECC hardware. Unexpected results may occur if such testing is performed using the 4 byte mode. Deskstar 40GV & 75GXP hard disk drive specifications 188

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Input parameters from the device
Sector Count
The number of requested sectors not transferred.
Sector Number
The sector number of the sector to be transferred. (L=0)
In LBA mode this register contains current LBA bits 0 - 7. (L=1)
Cylinder High/Low
The cylinder number of the sector to be transferred. (L=0)
In LBA mode this register contains current LBA bits 8 - 15 (Low), 16 - 23 (High).
(L=1)
H
The head number of the sector to be transferred. (L=0)
In LBA mode this register contains current LBA bits 24 - 27. (L=1)
The drive internally uses 40 bytes of ECC on all data read or writes. The 4 byte mode of operation is pro-
vided via an emulation technique. As a consequence of this emulation it is recommended that the 40 byte
ECC mode be used for all tests to confirm the operation of the ECC hardware. Unexpected results may
occur if such testing is performed using the 4 byte mode.
Deskstar 40GV & 75GXP hard disk drive specifications
188