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| ATA Bus Interface and ATA Commands |
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| Table |
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Word |
| CONTENT DESCRIPTION |
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67 | Minimum PIO transfer cycle time without flow control | |
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| Cycle time in nanoseconds | |
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68 | Minimum PIO transfer cycle time with IORDY flow control | |
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| Cycle time in nanoseconds | |
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Reserved (for future command overlap and queuing) | ||
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Reserved for IDENTIFY PACKET DEVICE command. | ||
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75 | Queue depth | |
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| Reserved | |
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| Maximum queue depth – 1 | |
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Reserved for Serial ATA | ||
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80 | Major version number | |
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| 0000h or FFFFh = device does not report version | |
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| 15: | Reserved |
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| 14: | Reserved for |
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| 13: | Reserved for |
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| 12: | Reserved for |
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| 11: | Reserved for |
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| 10: | Reserved for |
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| 9: | Reserved for |
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| 8: | Reserved for |
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| 7: | Reserved for |
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| 6: | 1 = supports |
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| 5: | 1 = supports |
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| 4: | 1 = supports |
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| 3: | 1 = supports |
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| 2: | Obsolete |
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| 1: | Obsolete |
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| 0: | Reserved |
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Quickview 300 80/100/120/160/200/250/300GB PATA |