Deskstar 7K160 Hard Disk Drive Specification
72
9.13 Sector Number Register
This register contains the starting sector number for any disk data access for the subsequent command. The sector
number is from one to the maximum number of sectors per track.
In LBA mode, this register contains Bits 0–7. At the end of the command this register is updated to reflect the cur-
rent LBA Bits 0–7.
When 48-bit commands are used, the "most recently written" content contains LBA Bits 0-7 and the "previous con-
tent" contains Bits 24-31.
9.14 Status Register
Table 55: Status Register
This register contains the device status. The contents of this register are updated whenever an error occurs and at
the completion of each command.
If the host reads this register when an interrupt is pending, it is considered to be the interrupt acknowledge. Any
pending interrupt is cleared whenever this register is read.
If BSY=1, no other bits in the register are valid.
76543210
BSY DRDY DF
DSC/
SERV
DRQ CORR IDX ERR
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