Functional Description

The pin multiplexing choices for all pads are shown in:

• 表 28 (GPIO_0 – GPIO_7)
• 表 29 (GPIO_8 – GPIO_15)
• 表 30 (GPIO_16 – GPIO_23)
• 表 31(GPIO_24 – GPIO_31)
• 表 32 (MSIO_0 – MSIO_4)
• 表 33 (AON_GPIO_0 – AON_GPIO_7)

Basically,

• GPIO_0 - GPIO_15 are supplied by VDDIO_1
• GPIO_16 - GPIO_31 are supplied by VDDIO_0

There are 8 mux options (from MUX_0 to MUX_7) in the pin mux tables as follows.

表 28 Pin multiplexing for GPIO_0 – GPIO_7

	GPIO_0	GPIO_1	GPIO_2	GPIO_3	GPIO_4	GPIO_5	GPIO_6	GPIO_7
MUX_0	SWD_CLK	SWD_IO	UART0_CTS	UART0_TX	UART0_RX	UART0_RTS	I2S_M_WS	I2S_M_SDO
MUX_1	I2C0_SCL	I2C0_SDA	SIM_PRESENCE	SIM_RST	SIM_IO	SIM_CLK	I2S_S_WS	I2S_S_SDO
MUX_2	I2C1_SCL	I2C1_SDA	SWO	SPI_M_CLK	SPI_M_MOSI	SPI_M_MISO	SPI_M_CS0	SPI_M_CS1
MUX_3	UART1_RTS	UART1_CTS	SPI_S_CS	SPI_S_CLK	SPI_S_MISO	SPI_S_MOSI	UART1_RX	UART1_TX
MUX_4	UART0_TX	UART0_RX	I2C0_SDA	SPI_M_CS1	SPI_M_CS0	SPI_M_MISO	SPI_M_MOSI	SPI_M_CLK
MUX_5	UART1_TX	UART1_RX	PWM0_A	PWM0_B	PWM0_C	I2C0_SCL	I2C0_SDA	PWM1_A
MUX_6	UART0_RTS	UART0_CTS	-	-	-	-	-	-
MUX_7	GPIO_0	GPIO_1	GPIO_2	GPIO_3	GPIO_4	GPIO_5	GPIO_6	GPIO_7

表 29 Pin multiplexing for GPIO_8 – GPIO_15

	GPIO_8	GPIO_9	GPIO_10	GPIO_11	GPIO_12	GPIO_13	GPIO_14	GPIO_15
MUX_0	XQSPI_IO0	XQSPI_CLK	I2S_M_SDI	I2S_M_SCLK	XQSPI_IO3	XQSPI_IO2	XQSPI_IO1	XQSPI_CS
MUX_1	I2C1_SDA	I2C1_SCL	I2S_S_SDI	I2S_S_SCLK	SPI_M_CLK	SPI_M_MOSI	SPI_M_MISO	SPI_M_CS0
MUX_2	QSPI1_IO0	QSPI1_CLK	UART0_TX	UART0_RX	QSPI1_IO3	QSPI1_IO2	QSPI1_IO1	QSPI1_CS
MUX_3	UART1_RX	UART1_TX	-	-	SIM_PRESENCE	SIM_RST	SIM_IO	SIM_CLK
MUX_4	-	-	I2C0_SCL	I2C0_SDA	I2S_M_WS	I2S_M_SDO	I2S_M_SDI	I2S_M_SCLK
MUX_5	PWM1_B	PWM1_C	PWM1_B	PWM1_C	I2S_S_WS	I2S_S_SDO	I2S_S_SDI	I2S_S_SCLK
MUX_6	-	-	-	-	SPI_S_CS	SPI_S_CLK	SPI_S_MISO	SPI_S_MOSI
MUX_7	GPIO_8	GPIO_9	GPIO_10	GPIO_11	GPIO_12	GPIO_13	GPIO_14	GPIO_15

表 30 Pin multiplexing for GPIO_16 – GPIO_23

	GPIO_16	GPIO17	GPIO_18	GPIO_19	GPIO_20	GPIO_21	GPIO_22	GPIO_23
MUX_0	SPI_M_MISO	SPI_M_CS0	QSPI0_CS	QSPI0_IO3	QSPI0_CLK	QSPI0_IO2	QSPI0_IO1	QSPI0_IO0
MUX_1	SPI_S_MOSI	SPI_S_CS	XQSPI_CS	XQSPI_IO3	XQSPI_CLK	XQSPI_IO2	XQSPI_IO1	XQSPI_IO0
MUX_2	SIM_IO	SIM_CLK	-	-	-	-	-	-
MUX_3	I2S_M_SDI	I2S_M_SCLK	-	-	-	-	-	-
MUX_4	I2S_S_SDI	I2S_S_SCLK	-	-	-	-	-	-
MUX_5	QSPI0_IO1	QSPI0_IO2	-	-	-	-	-	-
MUX_6	-	-	-	-	-	-	-	-
MUX_7	GPIO_16	GPIO_17	GPIO_18	GPIO_19	GPIO_20	GPIO_21	GPIO_22	GPIO_23

表 31 Pin multiplexing for GPIO_24 – GPIO_31

	GPIO_24	GPIO_25	GPIO_26	GPIO_27	GPIO_28	GPIO_29	GPIO_30	GPIO_31
MUX_0	SPI_M_CLK	SPI_M_MOSI	I2C1_SDA	-	-	-	I2C1_SCL	SPI_M_CS1
MUX_1	SPI_S_CLK	SPI_S_MISO	UART1_RX	UART1_RTS	UART1_CTS	-	UART1_TX	-
MUX_2	SIM_PRESENCE	SIM_RST	I2C0_SDA	-	-	-	I2C0_SCL	-
MUX_3	I2S_M_WS	I2S_M_SDO	PWM0_C	-	-	-	PWM0_B	PWM0_A
MUX_4	I2S_S_WS	I2S_S_SDO	PWM1_C	-	-	-	PWM1_B	PWM1_A
MUX_5	QSPI0_CLK	QSPI0_IO0	UART0_RX	UART0_RTS	UART0_CTS	-	UART0_TX	QSPI0_IO3
MUX_6	-	-	-	-	-	-	-	-
MUX_7	GPIO_24	GPIO_25	GPIO_26	GPIO_27	GPIO_28	GPIO_29	GPIO_30	GPIO_31

表 32 Pin multiplexing for MSIO_0 – MSIO_4

	MSIO_0	MSIO_1	MSIO_2	MSIO_3	MSIO_4
MUX_0	PWM0_A	PWM0_B	PWM0_C	PWM1_A	PWM1_B
MUX_1	UART0_TX	UART0_RX	-	UART0_RTS	UART0_CTS
MUX_2	UART1_TX	UART1_RX	-	UART1_RTS	UART1_CTS
MUX_3	I2C0_SCL	I2C0_SDA	-	I2C0_SCL	I2C0_SDA
MUX_4	I2C1_SCL	I2C1_SDA	-	I2C1_SCL	I2C1_SDA
MUX_5	-	-	-	-	-
MUX_6	-	-	-	-	-
MUX_7	MSIO_0	MSIO_1	MSIO_2	MSIO_3	MSIO_4

表 33 Pin multiplexing for AON_GPIO_0 – AON_GPIO_7

	AON_GPIO_0	AON_GPIO_1	AON_GPIO_2	AON_GPIO_3	AON_GPIO_4	AON_GPIO_5	AON_GPIO_6	AON_GPIO_7
MUX_0	-	-	SIM_PRESENCE	SIM_RST	SIM_IO	SIM_CLK	-	-
MUX_1	-	-	QSPI1_CS	QSPI1_IO0	QSPI1_IO1	QSPI1_CLK	-	-
MUX_2	-	-	I2S_M_WS	I2S_M_SDO	I2S_M_SDI	I2S_M_SCLK	-	-
MUX_3	-	-	I2S_S_WS	I2S_S_SDO	I2S_S_SDI	I2S_S_SCLK	-	-
MUX_4	-	-	-	-	-	-	-	-
MUX_5	-	QSPI0_CS	PWM0_C	PWM1_A	PWM1_B	PWM1_C	-	-
MUX_6	-	-	-	-	-	-	-	-
MUX_7	AON_GPIO_0	AON_GPIO_1	AON_GPIO_2	AON_GPIO_3	AON_GPIO_4	AON_GPIO_5	AON_GPIO_6	AON_GPIO_7