User manual

management of the CTS and RTS signals, IrDA SIR ENDEC support, are ISO 7816
compliant and have LIN Master/Slave capability.
All USART interfaces can be served by the DMA controller.
USART1.Tx – pin.42 PA9 EXT1-4
USART1.Rx – pin.43 PA10 EXT1-7
USART2.Tx – pin.16 PA2 EXT2-7
USART2.Rx – pin.17 PA3 EXT2-10
USART3.Tx – pin.29 PB10 EXT2-14
USART3.Rx – pin.30 PB11 EXT2-15
Pin # Signal
Name
Pin # Signal
Name
1 NC 6 NC
2 TxD 7 CTS
3 RxD 8 RTS
4 NC 9 NC
5 GND
SPI:
STM32F103RBT6 have 2 SPIs which able to communicate up to 18 Mbits/s in slave and
master modes in fullduplex and simplex communication modes. The 3-bit prescaler gives 8
master mode frequencies and the frame is configurable from 8-bit to 16-bit. The hardware
CRC generation/verification supports basic SD Card/MMC modes.
Both SPIs can be served by the DMA controller.
SPI1.NSS – pin.20 PA4 EXT2-11
SPI1.SCK – pin.21 PA5 EXT1-18
SPI1.MISO – pin.22 PA6 EXT1-14
SPI1.MOSI – pin.23 PA7 EXT1-22
SPI2.NSS – pin. PB12
SPI2.SCK – pin. PB13
SPI2.MISO – pin. PB14
SPI2.MOSI – pin. PB15