3 Tests and Diagnostics

3.18 Hard Disk Test Detail Status

3.18 Hard Disk Test Detail Status

When an error occurs in the hard disk test, the following message is displayed:

HDC status = XXXXXXXX

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.

Table 3-3 Hard disk controller status register contents

Bit

Name

 

Description

 

 

 

7

BSY

“0” … HDC is ready.

 

(Busy)

“1” … HDC is busy.

6

DRY

“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

COR

“0” … Not used

 

(Corrected data)

“1”

… Correctable data error is corrected.

1

IDX

“0” … Not used

 

(Index)

“1”

… Index is sensed.

0

ERR

“0” … Normal

 

(Error)

“1”

… The previous command was terminated with an error.

3-36

Satellite M30-35 Maintenance Manual (960-455)

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Toshiba M30-35 manual Tests and Diagnostics Hard Disk Test Detail Status, Hard disk controller status register contents

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