Hard Disk Test Detail Status - Toshiba Satellite A40 Maintenance Manual

3.17 Hard Disk Test Detail Status

3.17 Hard Disk Test Detail Status
When an error occurs in the hard disk test, the following message is displayed:
HDC status = XXXX
Detailed information about the hard disk test error is displayed on the screen by a four-digit number.
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.
Table 3-3 Hard disk controller status register contents
Bit Name
7 BSY
(Busy)
6 DRY
(Drive ready)
5 DWF
(Drive write fault)
4 DSC
(Drive seek complete)
3 DRQ
(Data request)
2 COR
(Corrected data)
1 IDX
(Index)
0 ERR
(Error)
Satellite A40 Maintenance Manual (960-458)
"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.
3 Tests and Diagnostics
Description
3-39