Tests and Diagnostics
3-182 [CONFIDENTIAL] PORTEGE M780 Maintenance Manual (960-809)
[Error register] Ｐ – 1F1h
Bit Name Function
7
BBK
（BadBlockMark）
0: Not used
1: Defective block mark detection.
6
UNC
（uncorrectable）
0: No uncorrectable data error
1: Uncorrectable data occurrence
5 - - -
4 IDN
（identification）
0: Not used
1: No ID field
3 - - -
2
ABT
（about）
0: Not used
1: Illegal command or command abort
1
TK0
（track zero）
0: Track 0 detection
1: Track 0 not detection
(When recalibrated)
0 0 - - -
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