1. The host interface between the BCM4343W and the STM32F411 MCU is limited to SDIO only
(A SPI interface is available from the MCU for communicating with SPI based peripherals but not the BCM4343W device)
2. The "internal schematics" you refer for examining these interfaces is that of the SPIL N08 SIP module and this is not a public document
Moderator(14)
1. The host interface between the BCM4343W and the STM32F411 MCU is limited to SDIO only
(A SPI interface is available from the MCU for communicating with SPI based peripherals but not the BCM4343W device)
2. The "internal schematics" you refer for examining these interfaces is that of the SPIL N08 SIP module and this is not a public document