Sector Count; Sector Number - Hitachi CinemaStar P7K500 Specifications

Output Parameters To The Device

Sector Count

The number of continuous sectors to be transferred. If zero is specified, then 256
sectors will be transferred.

Sector Number

The sector number of the first sector to be transferred. (L=0)
In LBA mode, this register specifies LBA address bits 0-7 to be transferred. (L=1)
Cylinder High/Low The cylinder number of the first sector to be transferred. (L=0)
In LBA mode, this register specifies LBA address bits 8-15 (Low) 16-23 (High) to be
transferred. (L=1)
H The head number of the first sector to be transferred. (L=0)
In LBA mode, this register specifies LBA bits 24-27 to be transferred. (L=1)
R The retry bit, but this bit is ignored.
Input Parameters From The Device
Sector Count The number of requested sectors not transferred. This will be zero, unless an
unrecoverable error occurs.
Sector Number The sector number of the last transferred sector. (L=0)
In LBA mode, this register contains current LBA bits 0-7. (L=1)
Cylinder High/Low The cylinder number of the last transferred sector. (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)
HITACHI Deskstar & CinemaStar P7K500 Hard Disk Drive specification (Rev 1.1)
151