For
HP
Internal Use
Only
Table 5-51. Byte 25 ESDI Status Byte Contents
Bit
Description
7
Spindle Motor Stopped
I
6
Command
Data
Parity Fault
I
5
Interface Fault
4
I Invalid Command Fault
3
Seek Fault
2
Write Gate with Track Offset Fault
1
DERROR
Status
Available; SCSI-2=byte
24
0
Write Fault
Table 5-52. Bytes 26, 27 SCSI Status Bytes Contents
Bit
Description
Byte
26: SCSI-2
7
BPF: Buffer parity fault
6
UOF: PHLEA FIFO underflow/overflow
5
SNR:
Status
not read
I
4
DNC:
Data
not complete
3
ATN:
ESDI/
device attention
2
SNC:
Status
not complete
1
CTO: Command Timeout
0
EOS:
End of sector
Byte
27: SCSI-2
7
SIL: Error would have been silent
6
DE3:
Data
ECC3 error
5
DEl:
Data
ECC1 error
4
HEl:
Header ECC1 error
3
DSF:
Data
sync fault
2
HSF: Header sync fault
1
HTC: Header track miscompare
0
HSC:
Header sector miscompare
Troubleshooting 5-59
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