Product Manual

5
RX0 UART0 RX I
SPI_CLK SPI interface
GPIOA18 I/O
6
TX2 UART2 TX O
GPIOA30 Support PWM3 I/O
I2C0_SDA I2C interface
7
RX2 UART2 RX I
GPIO29 Support PWM4 I/O
I2C_SCL I2C interface
8
I2C0_SDA I2C interface
GPIO19 I/O
SPI_CS SPI interface
9
I2C0_SCL I2C interface
GPIOA22 I/O
SPI_MISO SPI interface
10 GPIOA5 Support PWM4 I/O
11
GPIOA14 Support PWM0 I/O
SWD_CLK I
12
GPIOA15 Support PWM1 I/O
SWD_DATA
13 VDD 3.3V POWER
14 GND GND POWER
Note:
1. In default, UART0 is used for bypass communication and UART2 is used for
output of debugging information. Please refer to the description in DC
Characteristics for UART output current level.
2. RESET is hardware reset pin and will be effective with VIL. Configuration
information will be remained after module reset. The module is already
designed with RC reset upon power-on.
3. TX and RX in UART0 are used for communication with external MCU
powered by 3V. Please refer to the description in 3.3. DC Characteristics for
UART output current level.