A |
BYTE OFFSET | VALUE | COMMENTS | |
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C | (Note 6) | Starting cylinder - reduced write | |
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| current (MSB) | |
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D | (Note 6) | Starting cylinder - reduced write | |
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| current (LSB) | |
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E | (Note 7) | Drive step rate (MSB) | |
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F | (Note 7) | Drive step rate (LSB) | |
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Mode Select Parameter List: Page 5 Parameters (cont’d)
| BYTE OFFSET | VALUE | COMMENTS | |
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10 | 00 | Drive step pulse width | ||
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11 | 01 | Head settle delay (MSB) | ||
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12 | 18 | Head settle delay (LSB) | ||
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13 | 0C | Motor on delay | ||
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14 | 64 | Motor off delay | ||
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15 | E0 | Flags: TRDY = 1, SSN = 1, MO = 1 | ||
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16 | (Note 8) | Steps per cylinder | ||
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17 | 02 | Write precomp level | ||
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18 | 00 | Head load delay | ||
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19 | 00 | Head unload delay | ||
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| 1A | (Note 9) | Pin 34 definition/pin 2 definition | |
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| 1B | 00 | Pin 4 definition/pin 1 definition | |
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| 1C | (Note 10) | Reserved | |
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| 1D | (Note 10) | Reserved | |
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| 1E | (Note 10) | Reserved | |
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| 1F | (Note 10) | Reserved | |
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NOTES: | 1. | Transfer rate is $1F4 if the floppy data rate is 500k bits/sec. |
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| Transfer rate is $FA if the floppy data rate is 250k bits/sec. |
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| This is controlled by the 5"/8" flag (bit 3) in the attach packet |
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| byte offset $10. |
2.Number of heads is taken from the attach packet, byte offset $07.
