![](/images/backgrounds/146218/146218-6345x1.png)
SATA 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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| Queue depth | ||
75 |
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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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| 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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80 | 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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