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SDIO Simplified Specification Version 2.00
MEM=0
Power On | ||
IO=0, MEM=0 | IO=0 | |
CMD0 Pin1=High | CMD52 IO Reset | |
CMD8 | CMD8 is required to support | |
High Capacity Memory. | ||
|
No Response | Check Response | Error Response | |
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| Good Response | ||
F8=0 | F8=1 |
| Unusable card |
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Skip IO Initialize or IO=1 | Test IO Flag |
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| Execute IO Initialize & IO=0 | ||
| CMD5 Arg=0 |
| Get IO OCR |
No Response | Check Response | NF=0 or OCR invalid | |
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| NF>0 & OCR valid | ||
Set New Voltage (if needed) | |||
| CMD5 Arg=WV |
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IORDY=0 | Check Response | 1sec Timeout | |
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No Response | IORDY=1 |
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Unusable card | IO=1 | IO Initialized | |
(Inactive State) |
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| Test MP Flag |
| MP=0 |
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| MP=1 |
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| A |
| B |
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