STM8L15 datasheet(23/122 Pages) STMICROELECTRONICS

23 / 122 page

STM8L151xx, STM8L152xx

Functional overview

Doc ID 15962 Rev 5

23/122

Note:

I2C1 can be served by the DMA1 Controller.

3.16.3

USART

The USART interface (USART1) allows full duplex, asynchronous communications with

external devices requiring an industry standard NRZ asynchronous serial data format. It

offers a very wide range of baud rates.

●

1 Mbit/s full duplex SCI

●

SPI1 emulation

●

High precision baud rate generator

●

Smartcard emulation

●

IrDA SIR encoder decoder

●

Single wire half duplex mode

Note:

USART1 can be served by the DMA1 Controller.

3.17

Infrared (IR) interface

The STM8L15x devices contain an infrared interface which can be used with an IR LED for

remote control functions. Two timer output compare channels are used to generate the

infrared remote control signals.

3.18

Development support

Development tools

Development tools for the STM8 microcontrollers include:

●

The STice emulation system offering tracing and code profiling

●

The STVD high-level language debugger including C compiler, assembler and

integrated development environment

●

The STVP Flash programming software

The STM8 also comes with starter kits, evaluation boards and low-cost in-circuit

debugging/programming tools.

Single wire data interface (SWIM) and debug module

The debug module with its single wire data interface (SWIM) permits non-intrusive real-time

in-circuit debugging and fast memory programming.

The Single wire interface is used for direct access to the debugging module and memory

programming. The interface can be activated in all device operation modes.

The non-intrusive debugging module features a performance close to a full-featured

emulator. Beside memory and peripherals, CPU operation can also be monitored in real-

time by means of shadow registers.

Bootloader

A bootloader is available to reprogram the Flash memory using the USART1 interface.

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