Pin Multiplexing - Infineon Cypress WICED CYW43903 Manual

11. Pin Multiplexing

Table 11 shows the pin multiplexing functions.
Table 11. Pin Multiplexing
Pin 1
GPIO_0 GPIO_0 UART0_RXD
GPIO_1 GPIO_1 UART0_TXD
GPIO_2 GPIO_2 –
GPIO_3 GPIO_3 –
GPIO_4 GPIO_4 –
GPIO_5 GPIO_5 –
GPIO_6 GPIO_6 –
GPIO_7 GPIO_7 UART0_
RTS_OUT
GPIO_8 GPIO_8 SPI1_MISO
GPIO_9 GPIO_9 SPI1_CLK
GPIO_10 GPIO_10 SPI1_MOSI
GPIO_11 GPIO_11 SPI1_CS
GPIO_12 GPIO_12
2
I C1_SDATA
GPIO_13 GPIO_13
2
I C1_CLK
GPIO_14 GPIO_14 PWM0
GPIO_15 GPIO_15 PWM1
GPIO_16 GPIO_16 UART0_
CTS_IN
RF_SW_ RF_SW_ GCI_GPIO_5
CTRL_5 CTRL_5
RF_SW_ RF_SW_ UART_
CTRL_6 CTRL_6
DBG_RX
RF_SW_ RF_SW_ UART_
CTRL_7 CTRL_7
DBG_TX
Document Number: 002-14826 Rev. *G
2 3 4
2 PWM0
I C1_SDATA
PWM1
2
I C1_CLK
– GCI_GPIO_0
– GCI_GPIO_1
– GCI_GPIO_2
– GCI_GPIO_3
– GCI_GPIO_4
PWM1 PWM3
PWM2 PWM4
PWM3 PWM5
PWM4
2
I C1_SDATA
PWM5 2
I C1_CLK
UART0_RXD SPI1_MISO
UART0_TXD SPI1_CLK
UART0_ SPI1_MOSI
CTS_IN
UART0_ SPI1_CS
RTS_OUT
PWM0 PWM2
– –
1 –
SECI_IN
1
–
1
SECI_OUT
1
PRELIMINARY
Function
5 6
SPI1_MISO PWM2 GPIO_12
SPI1_CLK PWM3 GPIO_13
– – –
– – –
– – –
– – –
– – –
SPI1_CS I2C1_CLK GPIO_15
UART0_RXD – GPIO_16
UART0_TXD – GPIO_0
UART0_ PWM0 GPIO_1
CTS_IN
UART0_ PWM1 GPIO_7
RTS_OUT
PWM2 PWM4 GPIO_8
PWM3 PWM5 GPIO_9
2 – GPIO_10
I C1_SDATA
2 – GPIO_11
I C1_CLK
SPI1_MOSI GPIO_14
2
I C1_SDATA
– – –
– – –
– – –
7 8 9
GPIO_8 –
GPIO_9 –
– TCK
– TMS
– TDI
– TDO
– TRST_L
GPIO_11 PMU_TEST_
O
GPIO_12 TAP_SEL_P
GPIO_13 –
GPIO_14 PWM2
GPIO_15 PWM3
GPIO_16 PWM0
GPIO_0 PWM1
– PWM4
GPIO_7 PWM5
GPIO_10 RF_
DISABLE_L
– –
– –
– –
CYW43903
10 11
PWM4 –
PWM5 –
– –
– –
– –
– –
– –
– PWM5
2 PWM0
I C1_SDATA
PWM1
2
I C1_CLK
– –
– –
– –
– –
– PWM2
– PWM3
– PWM4
– –
– –
– –
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