Wi-Fi&Bluetooth Module Series
FCM561D-P_Hardware_Design
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3.3. GPIO Multiplexing
The module provides 44 GPIOs by default, and has up to 48 GPIOs in the case of multiplexing. Pins are defined as follows:
Table 6: GPIO Multiplexing
Pin Name
Pin No.
Multiplexing Function 0
(GPIO No.)
Multiplexing
Function 1
Multiplexing
Function 2
Multiplexing
Function 3
Multiplexing
Function 4
Multiplexing
Function 5
GPIO0
40
GPIO0
UART2_TXD
I2C2_SCL
-
-
-
GPIO1
39
GPIO1
UART2_RXD
I2C2_SDA
-
-
-
GPIO2
21
GPIO2
SPI2_CLK
SDIO_CLK
-
-
-
GPIO3
20
GPIO3
SPI2_CS
SDIO_CMD
-
-
-
GPIO4
19
GPIO4
SPI2_MOSI
SDIO_DATA0
-
-
-
GPIO5
18
GPIO5
SPI2_MISO
SDIO_DATA1
-
-
-
GPIO6
60
GPIO6
CLK26M_OUT
PWM0
I2S_CLK
-
-
GPIO7
59
GPIO7
COEX_WIFI_
ACTIVE
PWM1
I2S_SYNC
-
-
GPIO8
41
GPIO8
COEX_BT_
ACTIVE
PWM2
I2S_DIN
-
-