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Tests and Diagnostics
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| Table | HDC Error register contents | |
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Bit | Name |
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| Description |
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7 | BBK |
| “0” … Not used | |
| (Bad block mark) |
| “1” | … A bad block mark is detected. |
6 | UNC |
| “0” | … There is no uncorrectable data error. |
| (Uncorrectable) |
| “1” | … Uncorrectable data error has been detected. |
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5 |
| Not used | ||
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4 | IDN |
| “0” … Not used | |
| (Identification) |
| “1” | … There is no ID field in the requested sector. |
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3 |
| Not used | ||
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2 | ABT |
| “0” … Not used | |
| (Abort) |
| “1” | … Illegal command error or command abort. |
1 | TK0 |
| “0” … The hard disk found track 0 during a recalibrate | |
| (Track 0) |
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| command. |
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| “1” … The hard disk could not find track 0 during a | |
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| recalibrate command. |
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0 |
| Not used | ||
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PORTEGE M780 Maintenance Manual | [CONFIDENTIAL] |