6.2.2.Timing of Host Interface (PIO)
Figure 13 shows the Host Interface Timings
Address valid*1
t2 t1
Write data valid*1
Read data valid*1
t7
tA tB
IORDY
t0
t9
t2i
t3
t4
t5 |
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| t6Z |
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t6
t8 tRD
*1: In all timing diagrams, the low line indicator negated, and the upper line indicators asserted.
| PIO timing parameters min (ns) max (ns) | Min Time (ns) | Max Time (ns) |
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t0 | Cycle time | 120 |
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t1 | Address valid to | 25 |
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t2 | 70 |
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t2i | 25 |
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t3 | 20 |
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t4 | 10 |
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t5 | 20 |
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t6 | 5 |
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t6Z |
| 30 | |
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t7 | Addr valid to IOCS |
| 30 |
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t8 | Addr valid to IOCS |
| 30 |
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t9 | 10 |
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tRD | Read Data Valid to IORDY active | 0 |
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tA | IORDY setup |
| 35 |
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tB | IORDY pulse wide |
| 1250 |
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Figure 13 Host Interface Timing (PIO Mode4)
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