Method of controlling SDIO device and related SDIO system and SDIO device

摘要

Described in embodiments herein are techniques for placing a secure digital input output (SDIO) device in a sleep mode and waking up the SDIO device from the sleep mode. In accordance with an embodiment, a method of controlling the SDIO device comprising: writing a control value into a register of the SDIO device; allowing the SDIO device to switch to a first operation mode based on the control value written into the register; sending a first signal to the SDIO device through a first data terminal of the SDIO device; and allowing the SDIO device to switch to a second operation mode based on the first signal.