STM8S003K3P6CTR datasheet(14/100 Pages) STMICROELECTRONICS

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Window watchdog timer

The window watchdog is used to detect the occurrence of a software fault, usually generated

by external interferences or by unexpected logical conditions, which cause the application

program to abandon its normal sequence.

The window function can be used to trim the watchdog behavior to match the application

perfectly.

The application software must refresh the counter before time-out and during a limited time

window.

A reset is generated in two situations:

1. Timeout: At 16 MHz CPU clock the time-out period can be adjusted between 75 µs up to

64 ms.

2. Refresh out of window: The downcounter is refreshed before its value is lower than the

one stored in the window register.

Independent watchdog timer

The independent watchdog peripheral can be used to resolve processor malfunctions due to

hardware or software failures.

It is clocked by the 128 kHZ LSI internal RC clock source, and thus stays active even in case

of a CPU clock failure

The IWDG time base spans from 60 µs to 1 s.

Auto wakeup counter

4.8

• Used for auto wakeup from active halt mode

• Clock source: Internal 128 kHz internal low frequency RC oscillator or external clock

• LSI clock can be internally connected to TIM1 input capture channel 1 for calibration

Beeper

4.9

The beeper function outputs a signal on the BEEP pin for sound generation. The signal is in

the range of 1, 2 or 4 kHz.

The beeper output port is only available through the alternate function remap option bit AFR7.

TIM1 - 16-bit advanced control timer

4.10

This is a high-end timer designed for a wide range of control applications. With its

complementary outputs, dead-time control and center-aligned PWM capability, the field of

applications is extended to motor control, lighting and half-bridge driver

• 16-bit up, down and up/down autoreload counter with 16-bit prescaler

• Four independent capture/compare channels (CAPCOM) configurable as input capture,

output compare, PWM generation (edge and center aligned mode) and single pulse mode

output

• Synchronization module to control the timer with external signals

• Break input to force the timer outputs into a defined state

• Three complementary outputs with adjustable dead time

DocID018576 Rev 3

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STM8S003K3 STM8S003F3

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STM8S003K3P6CTR Datasheet(PDF) 14 Page - STMicroelectronics

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