我看手册上写的有UART、I2C和20个GPIO接口,这些都可以接外设吗?
■ UART interface for debug
■ 1-bit SPI flash memory interface
■ SPI interface for debug and programming
■ I2C interface for EEPROM
■ Up to 20 general purpose PIOs with 3 extra opendrain
PIOs available when LED not used
■ PCM and I2S (only in HCI mode) interfaces
■ 3 LED drivers (includes RGB) with PWM flasher
independent of MCU