we were discussing HW host interface and discovered, that there used to be SPI interface supported on CYW43364 side, but it has been removed from the datasheet in revision D. Can you help us understand if there is possible to use SPI or only SDIO?
Hello, that's clear answer. Would be possible to get some insight why SPI has been removed? It makes us little bit nervous that such a feature is being removed during the lifecycle of the product.
Please don't be worried about that. The feature was removed in order to optimize the throughput and keep a uniform host interface support so that driver maintenance is easier.