STM32F101XF datasheet(20/117 Pages) STMICROELECTRONICS

20 / 117 page

Description

STM32F101xF, STM32F101xG

20/117

DocID16553 Rev 5

one-pulse mode output. This gives up to 16 input captures / output compares / PWMs

on the largest packages.

Their counter can be frozen in debug mode. Any of the general-purpose timers can be

used to generate PWM outputs. They all have independent DMA request generation.

These timers are capable of handling quadrature (incremental) encoder signals and the

digital outputs from 1 to 3 hall-effect sensors.

•

TIM10, TIM11 and TIM9

These timers are based on a 16-bit auto-reload upcounter and a 16-bit prescaler.

TIM10 and TIM11 feature one independent channel, whereas TIM9 has two

independent channels for input capture/output compare, PWM or one-pulse mode

output. They can be synchronized with the TIM2, TIM3, TIM4, TIM5 full-featured

general-purpose timers. They can also be used as simple time bases.

•

TIM13, TIM14 and TIM12

These timers are based on a 16-bit auto-reload upcounter and a 16-bit prescaler.

TIM13 and TIM14 feature one independent channel, whereas TIM12 has two

independent channels for input capture/output compare, PWM or one-pulse mode

output. They can be synchronized with the TIM2, TIM3, TIM4, TIM5 full-featured

general-purpose timers. They can also be used as simple time bases.

Basic timers TIM6 and TIM7

These timers are mainly used for DAC trigger generation. They can also be used as a

generic 16-bit time base.

Independent watchdog

The independent watchdog is based on a 12-bit downcounter and 8-bit prescaler. It is

clocked from an independent 40 kHz internal RC and as it operates independently from the

main clock, it can operate in Stop and Standby modes. It can be used either as a watchdog

to reset the device when a problem occurs, or as a free running timer for application timeout

management. It is hardware or software configurable through the option bytes. The counter

can be frozen in debug mode.

Window watchdog

The window watchdog is based on a 7-bit downcounter that can be set as free running. It

can be used as a watchdog to reset the device when a problem occurs. It is clocked from

the main clock. It has an early warning interrupt capability and the counter can be frozen in

debug mode.

SysTick timer

This timer is dedicated to real-time operating systems, but could also be used as a standard

down counter. It features:

•

A 24-bit down counter

•

Autoreload capability

•

Maskable system interrupt generation when the counter reaches 0.

•

Programmable clock source

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