Sdio Interface - Quectel FC80A User Manual

3.4.3. SDIO Interface

The following table shows the pin definition of SDIO interface.
Table 8: Pin Definition of SDIO Interface
Pin Name Pin No.
SDIO_CMD 17
SDIO_CLK 18
SDIO_DATA3 19
SDIO_DATA2 20
SDIO_DATA0 21
SDIO_DATA1 22
The following figure shows the SDIO interface connection between FC80A and host.
SDIO_CLK
SDIO_CMD
SDIO_DATA0
SDIO_DATA1
FC80A
SDIO_DATA2
SDIO_DATA3
FC80A_Hardware_Design
I/O Description
DIO SDIO command
DI SDIO clock
DIO SDIO data bit 3
DIO SDIO data bit 2
DIO SDIO data bit 0
DIO SDIO data bit 1
NM NM
NM
Figure 5: SDIO Interface Connection
Wi-Fi&Bluetooth Module Series
Comment
VDDIO power domain
VDDIO
SDIO_CLK
SDIO_CMD
SDIO_DATA0
SDIO_DATA1
SDIO_DATA2
SDIO_DATA3
NM
NM
HOST
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