SDIo interface


We are using sierra wireless GSM module (HP or WP series module) in design of one of our product. We are using SDIO line to interface it with STM32F753XiH6 microcontroller. I want to clarify which protocols/lines are possible to interface with STM32F753XiH6 microcontroller.

HL module does not have SDIO interface. And WP series module defines a 3.0V SDIO interface (SD 2.0-
compliant) for customer-defined use with SD cards, connection to a Wi-Fi module, etc…

Please refer more details in


1 Like

Hello Jerdung,

Thanks for reply,

I am using HL series GSM in our product. We want to know which interfaces are supported by HL series GSM when interface to STM32H753XI

mictocontroller .

Hi shiv.prakash,

STM32H753XI is ARM MCU. I suppose MCU need to communicate with HL modules by UART/USB.
And you can refer to HL Product_Technical_Specification to check detailed interfaces.