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RZ/G1M/G1N Qseven Development Platform Hardware User Guide
iWave Systems Technologies Pvt. Ltd.
2.7.4
SDIO Port
The RZ/G1M/G1N Qseven Carrier Board supports SDIO interface through RZ/G1M/G1N CPU’s SDHI2 interface. This
SDHI2 signals from Qseven MXM connector is connected to SD/MMC connector (J30) to support Standard SD
interface. This connector supports up to 4-bit data transfer with card detect and write protect. Also it supports SDIO
activity Green LED (D8) on board for SDIO bus transfer indication.
The main power to SD/MMC connector is 3.3V and it is connected through power switch to support power
enable/disable feature. This power enable/disable is controlled from the SDIO_PWR# pin of Qseven MXM connector.
This SD/MMC connector (J30) is physically located at the bottom of the board as shown below.
Figure 15: SD/MMC Connector