Multi-media Memory Card (MMC) devices, Secure Digital (SD) devices, and Secure Digital Input Output (SDIO) devices connected to a single host controller with signals multiplexed to allow simultaneous activation of more than one device at a time.
Edits on 22 Jul, 2023
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US Patent 07269669 Sharing single host controller with multiple functional devicesUS Patent 7269669 Sharing single host controller with multiple functional devices