
3.2.16 SDIO Interface
The ULP-COM sA3874i module supports a 4bit SDIO interface, per the ULP-COM specification. The SDIO interface
uses 3.3V signaling, per the ULP-COM spec and for compatibility with commonly available SDIO cards.
SDIO interface signals are exposed on the ULP-COM sA3874i edge connector as shown below:
ULP-COM sA3874i Edge finger
SDIO write protect
signal
The SDIO card power should be switched on the Carrier board and the SDIO lines should be ESD protected. The
ULP-COM Evaluation Carrier schematic (KAI 501-146) is useful as an implementation reference.
Comentarios a estos manuales