MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 653
MCBSTM32EXL
Manufacturer Part Number
MCBSTM32EXL
Description
BOARD EVALUATION FOR STM32F103ZE
Manufacturer
Keil
Specifications of MCBSTM32EXL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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RM0008
25
25.1
25.2
Universal synchronous asynchronous receiver
transmitter (USART)
Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx
microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx
microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
High-density devices are STM32F101xx and STM32F103xx microcontrollers where the
Flash memory density ranges between 256 and 512 Kbytes.
Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers.
This Section applies to the whole STM32F10xxx family, unless otherwise specified.
USART introduction
The universal synchronous asynchronous receiver transmitter (USART) offers a flexible
means of full-duplex data exchange with external equipment requiring an industry standard
NRZ asynchronous serial data format. The USART offers a very wide range of baud rates
using a fractional baud rate generator.
It supports synchronous one-way communication and half-duplex single wire
communication. It also supports the LIN (local interconnection network), Smartcard Protocol
and IrDA (infrared data association) SIR ENDEC specifications, and modem operations
(CTS/RTS). It allows multiprocessor communication.
High speed data communication is possible by using the DMA for multibuffer configuration.
USART main features
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Full duplex, asynchronous communications
NRZ standard format (Mark/Space)
Fractional baud rate generator systems
–
Programmable data word length (8 or 9 bits)
Configurable stop bits - support for 1 or 2 stop bits
LIN Master Synchronous Break send capability and LIN slave break detection
capability
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Transmitter clock output for synchronous transmission
IrDA SIR Encoder Decoder
–
Smartcard Emulation Capability
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A common programmable transmit and receive baud rates up to 4.5 MBits/s
13-bit break generation and 10/11 bit break detection when USART is hardware
configured for LIN
Support for 3/16 bit duration for normal mode
The Smartcard interface supports the asynchronous protocol Smartcards as
defined in ISO 7816-3 standards
Universal synchronous asynchronous receiver transmitter (USART)
Doc ID 13902 Rev 9
653/995
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