STM8S103 Programming Manual

●Description

●The STM8S103/105 access line 8-bit microcontrollers offer from 8 Kbytes up to 32 Kbytes of program memory.

●All devices of the STM8S103/105 access line provide the following benefits:

● Reduced system cost

●– High system integration level with internal clock oscillators, watchdog and brown out reset

● Performance and robustness

●– 16 MHz CPU clock frequency

●– Robust I/O, independent watchdogs with separate clock source

●– Clock security system

● Short development cycles

●– Applications scalability across a common family product architecture with compatible pinout, memory map and and modular peripherals.

●– Full documentation and a wide choice of development tools

● Product longevity

●– Advanced core and peripherals made in a state-of-the art technology

●– A family of products for applications with 3.0 V to 5.5 V operating supply

●Features

●Core

●■ Max fCPU: up to 16 MHz

●■ Advanced STM8 core with Harvard architecture and 3-stage pipeline

●■ Extended instruction set

●Memories

●■ Program memory: Up to 32 Kbytes Flash; data retention 20 years at 85°C after 1 kcycles

●■ RAM: Up to 2 Kbytes

●Clock, reset and supply management

●■ 3.0 to 5.5 V operating voltage

●■ Flexible clock control, 4 master clock sources:

●– Low power crystal resonator oscillator

●– External clock input

●– Internal 16 MHz RC

●– Internal low power 128 kHz RC

●■ Clock security system with clock monitor

●■ Power management:

●– Low power modes (Wait, Active-halt, Halt)

●– Switch-off peripheral clocks individually

●■ Permanently active, low consumption power on and power-down reset

●Interrupt management

●■ Nested interrupt controller with 32 interrupts

●■ Up to 37 external interrupts on 6 vectors

●Timers

●■ 2x 16-bit general purpose timers, with 2+3 CAPCOM channels (IC, OC or PWM)

●■ Advanced control timer: 16-bit, 4 CAPCOM channels, 3 complementary outputs, dead-time insertion and flexible synchronization

●■ 8-bit basic timer with 8-bit prescaler

●■ Auto wake-up timer

●■ 2 watchdog timers: Window watchdog and independent watchdog

●Communications interfaces

●■ USART or LINUART with clock output for synchronous operation, smartcard mode, IrDA mode, LIN master mode

●■ SPI synchronous serial interface up to 8 Mbit/s

●■ I2C interface up to 400 Kbit/s

●Analog to digital converter (ADC)

●■ 10-bit, ±1 LSB ADC with up to 10 multiplexed channels, scan mode and analog watchdog

●I/Os

●■ Up to 38 I/Os on a 48-pin package including 9 high sink outputs

●■ Highly robust I/O design, immune against current injection