7.Drive Diagnostics
Sequence Test
00 | Reset Sequence (61, 62, 71,72, 30) | H |
Main Processor Kernel Test |
| |
61 | Main Processor ROM checksum | P |
62 | Main Processor Destructive RAM Test | P |
Drive Test |
|
|
71 | Buffer RAM Test | PH |
72 | DMA Test | PH |
7.2.5.RECEIVE DIAGNOSTIC RESULT command
Whenever a diagnostic test is executed, the drive automatically prepares a diagnostic test result that can be returned to the host computer when a RECEIVE DIAGNOSTIC RESULT command is issued.
If the PF bit in the SEND DIAGNOSTIC command was sent to one, the diagnostic test result will be preceded by a
Table
Bit | 7 | 6 | 5 | 4 |
| 3 | 2 | 1 | 0 |
Byte |
|
|
|
|
|
|
|
|
|
0 |
|
|
| Page Code (81h) |
|
|
| ||
1 |
|
|
|
| Reserved |
|
|
| |
2 | (MSB) |
|
| Page Length (00 05h) |
|
|
| ||
3 |
|
|
|
|
|
|
|
| (LSB) |
Regardless of the PF bit in the SEND DIAGNOSTIC command, the five bytes of diagnostic test result information will be of the form:
Table
Bit | 7 | 6 | 5 |
| 4 |
| 3 | 2 |
| 1 | 0 |
Byte |
|
|
|
|
|
|
|
|
|
|
|
0 | Reset | Time |
| Reserved |
|
|
| Error Set |
| ||
| Error |
|
|
|
|
|
|
|
|
| |
1 |
|
|
|
|
| Error | Code |
|
|
|
|
2 |
|
|
|
|
| Result A |
|
|
|
| |
3 |
|
|
|
|
| Result B |
|
|
|
| |
4 |
|
|
|
| Diagnostic Test Number |
|
|
|
|
Reset error: This bit is set when an error occurs during
Time
SONY |