Samsung WA31273A Technical Manual page 57

6-3-4-2 Features Register (1F1h)
This register is command specific and used to enable and disable features of the
interface (e.g. by the Set Features command to enable and disable caching).
6-3-4-3 Sector Number Register (1F3h)
In CHS mode this register contains the starting sector number for any disk data access
for the subsequent command. The sector number is from 1 to the maximum number of
sectors per track. In LBA mode this register contains bits 0-7 of the LBA.
See the command descriptions for contents of the register at command completion
(whether successful or unsuccessful).
6-3-4-4 Error Register (1F1h)
This register contains status from the last command executed by the drive or a
Diagnostic Code.
At the completion of any command except Execute Drive Diagnostic, the contents of this
register are valid when ERR=1 in the Status Register.
Following a power on, a reset, or completion of an Execute Drive Diagnostic command,
this register contains a Diagnostic Code (see Table 6-5).
7 6
BBK UNC
• BBK (Bad Block Detected) indicates a bad block mark was detected in the requested
sector's ID field.
• UNC (Uncorrectable Data Error) indicates an uncorrectable data error has been
encountered.
• IDNF (ID Not Found) indicates the requested sector's ID field could not be found.
• ABRT (Aborted Command) indicates the requested command has been aborted due
to a drive status error (Not Ready, Write Fault, etc.) or because the command code is
invalid.
• K0NF (Track 0 Not Found) indicates track 0 has not been found during a Recalibrate
command.
• AMNF (Address Mark Not Found) indicates the data address mark has not been
found after finding the correct ID field.
NOTE : Unused bits are cleared to zero.
WA31273A / WA32543A / WA33203A / WA32163A / WA31083A / WA32162A 6-13
5 4 3
0 IDNF 0
AT INTERFACE and ATA COMMANDS
2 1
ABRT TK0NF
0
AMNF