Hard Disk Test Detail Status - Toshiba PORTEGE M400 Maintenance Manual
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3 Tests and Diagnostics
3.20 Hard Disk Test Detail Status
When an error occurs in the hard disk test, the following message is displayed:
Detailed information about the hard disk test error is displayed on the screen by an eight-
digit number. The first four digits represent the hard disk controller (HDC) error status
number and the last four digits are not used.
The hard disk controller error status is composed of two bytes; the first byte displays the
contents of the HDC status register in hexadecimal form and the second byte displays the
HDC error register.
The contents of the HDC status register and error register are listed in Tables 3-3 and 3-4.
Bit
7
6
5
4
3
2
1
0
3-46
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HDC status = XXXXXXXX
Table 3-3 HDC status register contents
Name
BSY
(Busy)
DRY
(Drive ready)
DWF
(Drive write fault)
DSC
(Drive seek complete)
DRQ
(Data request)
COR
(Corrected data)
IDX
(Index)
ERR
(Error)
[CONFIDENTIAL]
Description
"0" ... HDC is ready.
"1" ... HDC is busy.
"0" ... Hard disk drive is not ready to accept any command.
"1" ... Hard disk drive is ready.
"0" ... DWF error is not detected.
"1" ... Write fault condition occurred.
"0" ... The hard disk drive heads are not settled over a track.
"1" ... The hard disk drive heads are settled over a track.
"0" ... Drive is not ready for data transfer.
"1" ... Drive is ready for data transfer.
"0" ... Not used
"1" ... Correctable data error is corrected.
"0" ... Not used
"1" ... Index is sensed.
"0" ... Normal
"1" ... The previous command was terminated with an error.
PORTEGE M400 Maintenance Manual (960-541)
3.20 Hard Disk Test Detail Status
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