STM32G0C1NET7XTR datasheet(56/159 Pages) STMICROELECTRONICS

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PB6

I/O

FT_fa

USART1_TX, TIM1_CH3, TIM16_CH1N,

FDCAN2_TX, SPI2_MISO/I2S2_MCK, LPTIM1_ETR,

I2C1_SCL, EVENTOUT, USART5_CTS, TIM4_CH1,

LPUART2_TX

COMP2_INP1

PB7

I/O

FT_fa

USART1_RX, SPI2_MOSI/I2S2_SD, TIM17_CH1N,

USART4_CTS, LPTIM1_IN2, I2C1_SDA,

EVENTOUT, TIM4_CH2, LPUART2_RX

COMP2_INM7, PVD_IN

47 A12 62

100

PB8

I/O

FT_f

CEC, SPI2_SCK/I2S2_CK, TIM16_CH1,

FDCAN1_RX, USART3_TX, TIM15_BKIN,

I2C1_SCL, EVENTOUT, USART6_TX, TIM4_CH3

PB9

I/O

FT_f

IR_OUT, UCPD2_FRSTX, TIM17_CH1,

FDCAN1_TX, USART3_RX, SPI2_NSS/I2S2_WS,

I2C1_SDA, EVENTOUT, USART6_RX, TIM4_CH4

1. PC13, PC14 and PC15 are supplied through the power switch. Since the switch only sinks a limited amount of current (3 mA), the use of GPIOs PC13 to PC15 in output

mode is limited:

- The speed should not exceed 2 MHz with a maximum load of 30 pF

- These GPIOs must not be used as current sources (for example to drive a LED).

2. After an RTC domain power-up, PC13, PC14 and PC15 operate as GPIOs. Their function then depends on the content of the RTC registers. The RTC registers are not reset

upon system reset. For details on how to manage these GPIOs, refer to the RTC domain and RTC register descriptions in the RM0444 reference manual.

3. Upon reset, a pull-down resistor might be present on PA8, PB15, PD0, or PD2 depending on voltage level on PA9,PA10, PD1, and PD3, respectively. In order to disable this

resistor, strobe the UCPDx_STROBE bit in SYSCFG_CFGR1 register during start-up sequence.

4. Pins PA9/PA10 can be remapped in place of pins PA11/PA12 (default mapping), using SYSCFG_CFGR1 register.

5. Upon reset, these pins are configured as SW debug alternate functions, and the internal pull-up on PA13 pin and the internal pull-down on PA14 pin are activated.

Table 12. Pin assignment and description (continued)

Pin number

Pin name

Alternate

functions

Additional

functions

STM32G0C1NET7XTR 数据表(PDF) 56 Page - STMicroelectronics

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