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General-purpose input/outputs<br />
<strong>STM32W108C8</strong><br />
Table 25.<br />
GPIO signal assignments (continued)<br />
GPIO Analog Alternate function Input<br />
Output current<br />
drive<br />
PB0 VREF TRACECLK<br />
PB1<br />
PB2<br />
PB3<br />
PB4<br />
TIM2_CH1 (4) , SC1TXD,<br />
SC1MOSI, SC1MISO,<br />
SC1SDA<br />
TIM2_CH2 (4) ,<br />
SC1SCLK<br />
TIM2_CH3 (4) ,<br />
SC1SCLK<br />
TIM2_CH4 (4) ,<br />
UART_RTS<br />
TIM1CLK, TIM2MSK,<br />
IRQA<br />
TIM2_CH1 (4) , SC1SDA<br />
TIM2_CH2 (4) ,<br />
SC1MISO, SC1MOSI,<br />
SC1SCL, SC1RXD<br />
TIM2_CH3 (4) ,<br />
SC1SCLK, UART_CTS<br />
TIM2_CH4 (4) ,<br />
SC1nSSEL<br />
Standard<br />
Standard<br />
Standard<br />
Standard<br />
Standard<br />
PB5 ADC0 TIM2CLK, TIM1MSK Standard<br />
PB6 ADC1 TIM1_CH1 TIM1_CH1, IRQB High<br />
PB7 ADC2 TIM1_CH2 TIM1_CH2 High<br />
PC0 TRACEDATA1 JRST (5) High<br />
PC1 ADC3 TRACEDATA0, SWO Standard<br />
PC2 JTDO (6) , SWO Standard<br />
PC3 JTDI (5) Standard<br />
PC4 SWDIO (7) SWDIO (7) , JTMS (5) Standard<br />
PC5 TX_ACTIVE Standard<br />
PC6 OSC32B nTX_ACTIVE Standard<br />
PC7 OSC32A OSC32_EXT Standard<br />
1. Default signal assignment (not remapped).<br />
2. Overrides during reset as an input with pull up.<br />
3. Overrides after reset as an open-drain output.<br />
4. Alternate signal assignment (remapped).<br />
5. Overrides in JTAG mode as an input with pull up.<br />
6. Overrides in JTAG mode as a push-pull output.<br />
7. Overrides in Serial Wire mode as either a push-pull output, or a floating input, controlled by the debugger.<br />
63/215 Doc ID 018587 Rev 2
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