It’s a little confusing since the SDIO is an extension of the SD Spec. The way I read it, v3.0 could effectively be supported. The Datasheet states SDIO Card specification, Part E1, v1.10, it explicitly states UHS-I SDR104 mode at 104 MB/s which was introduced in SDIO Card specification, Part E1, v3.00. So it looks like it can handle the speed. Are there any other features introduced in v2.00 or v3.00 that are not supported?
Thanks in advance