3 Tests and Diagnostics | 3.20 HDC Status |
3.20 HDC Status
When an error occurs in the hard disk test, the following message is displayed:
HDC status = XXXX
The hard disk test error status is displayed on the screen by a
The hard disk controller error status is composed of two bytes; the first byte displays the contents of the HDC error status register and the second byte displays the HDC error register. Each of them are indicated in hexadecimal form
The contents of the HDC error status register and error register are listed in Tables
Table 3-5 Hard disk controller status register contents
Bit | Name |
| Description |
|
|
|
|
7 | BSY | “0” | … HDC is ready. |
| (Busy) | “1” | … HDC is busy. |
|
|
|
|
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 occurred. |
|
|
|
|
4 | DSC | “0” | … The hard disk drive heads are not settled over a track. |
| (Drive seek complete) | “1” | … The hard disk drive heads are settled over a track. |
|
|
|
|
3 | DRQ | “0” | … Drive is not ready for data transfer. |
| (Data request) | “1” | … Drive is ready for data transfer. |
|
|
|
|
2 | CORR | “0” | … Not used |
| (Corrected data) | “1” | … Correctable data error is corrected. |
|
|
|
|
1 | IDX | “0” | … Not used |
| (Index) | “1” | … Index is sensed. |
|
|
|
|
0 | ERR | “0” | … Not used |
| (Error) | “1” | … The previous command was terminated with an error. |
|
|
|
|
PORTEGE A100 Maintenance Manual |
