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The payload supports microSD cards for up to 32GB of storage. Because SDIO is conconsidered a high-speed signal it is routed on the bottom layer of the PCB and all the clock and data traces are length matched to xx mm.
| PicoZed Pin | Net Name | Functionality | Comment |
|---|---|---|---|
| JX3-43 | PS_MIO_40 | Clock | |
| JX3-34 | PS_MIO_41 | Commands | |
| JX3-37 | PS_MIO_42 | Data0 | |
| JX3-36 | PS_MIO_43 | Data1 | |
| JX3-39 | PS_MIO_44 | Data2 | |
| JX3-48 | PS_MIO_45 | Data3 | |
| JX3-66 | PS_MIO_50 | CD |
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