Hard Disk Test Detail Status - Toshiba T4400SXC Maintenance Manual

3.15 Hard Disk Test Detail Status
When an error occurs in the hard disk test, the following message is displayed:
HDC status
=
XXXXXXXX
Specific information about the hard disk test error is displayed on the screen by an eight-digit
number. The first four digits, XXXX represent the error status number and the last four
digits, XXXX are not used.
The hard disk controller error status is composed of 2 bytes; the first byte displays the con-
tents of the HDC status register in hexadecimal form and the second byte displays the HDC
error register.
The contents of the HDC status register are described in Tables 3-4 and 3-5.
Table 3-4 Hard disk controller status register contents
Bit Name
Description
7 BSY "0" ----HDC is busy.
(Busy)
"1" ---- H DC is ready
6
DRDY
"0" ----Hard disk drive is not ready to accept any command.
(Drive ready) "1" ----Hard disk drive is ready.
5
DWF "0" ---- DWF error is not detected.
(Drive write fault)
"1" ---- Write fault condition occurs.
4
DSC "0" ---- The hard disk drive heads are not settled over a track.
(Drive seek
"1" ---- The hard disk drive heads are settled over a track.
complete)
3 DRO "0" ---- Drive is not ready to transfer data.
(Data request) "1" ---- Drive is ready for data transfer.
2 CORR "0" ----Otherwise
(Corrected data) "1" ---- Correctable data error is corrected.
1
IDX "0" ---- Otherwise
(Index) "1" ----I ndex is sensed.
0
ERR
"0" ---- Otherwise
(Error) "1" ---- The previous command was terminated with some error.
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