RIALTO SBC/Interfaces and Connectors/micro SD
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micro SD interface[edit | edit source]
Description[edit | edit source]
The SD interface is available on RIALTO SBC at the connector J43.
J43 is a Micro-SD card header. This interface is connected to the SD1 controller of the i.MX6UL CPU.
Signals[edit | edit source]
The following table describes the interface signals:
| Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|
| 1 | SD_DAT2 | Data 2 | |
| 2 | SD_DAT3 | Data 3 | |
| 3 | SD_CMD | CMD | |
| 4 | 3V3_IO | +3.3 V | |
| 5 | SD_CLK | Clock | |
| 6, 11 | DGND | Ground | |
| 7 | SD_DAT0 | Data 0 | |
| 8 | SD_DAT1 | Data 1 | |
| 9, 10 | PCB_GND_RNG | Shield | |
| 12 | SD_DET | Card detect |
Device mapping[edit | edit source]
The microSD card is mapped to /dev/mmcblk0.
Device usage[edit | edit source]
The device can be mounted/accessed as a standard block device in Linux.
