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Bit Definitions
Address Mark Not Found. AMN=1 indicates that data address mark has not been
found after finding the correct ID field for the requested sector.
AMNF
(AMN)
Track 0 Not Found. T0N=1 indicates track 0 was not found during a Recalibrate
command.
TK0NF
(T0N)
Aborted Command. ABT=1 indicates the requested command has been aborted due to
a device status error or an invalid parameter in an output register.
ABRT
(ABT)
ID Not Found. IDN=1 indicates the ID field of the requested sector could not be found.
IDNF (IDN)
Uncorrectable Data Error. UNC=1 indicates an uncorrectable data error has been
encountered.
UNC
Interface CRC Error. CRC=1 indicates a CRC error has occurred on the data bus
during Ultra-DMA transfer.
ICRCE
(CRC)
8.10 Features Register
This register is command specific. This is used with the Set Features command, S.M.A.R.T. Function Set
command, and Format Unit command.
8.11 Sector Count Register
This register contains the number of sectors of data requested to be transferred on a read or write
operation between the host and the device. If the value in the register is set to 0, a count of 256 sectors is
specified.
If the register is zero at command completion, the command was successful. If it is not successfully com-
pleted, the register contains the number of sectors which need to be transferred in order to complete the
request.
The contents of the register are defined otherwise on some commands. These definitions are given in the
command descriptions.
8.12 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 current LBA Bits 0-7.
Deskstar 120GXP hard disk drive specifications
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Содержание Deskstar 120 GXP
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