M4TKLG6AE Datasheet, PDF (94/144 Pages) List of Unclassifed Manufacturers – 32-bit Microcontroller

M4TK
6.9 PWM Generator and Capture Timer (PWM)
6.9.1 Overview
The M4TK provides two PWM generators － PWM0 and PWM1 as 錯誤! 找不到參照來源。. Each
PWM supports 6 channels of PWM output or input capture. There is a 12-bit prescaler to support
flexible clock to the 16-bit PWM counter with 16-bit comparator. The PWM counter supports up,
down and up-down counter types. PWM using comparator compared with counter to generate
events. These events use to generate PWM pulse, interrupt and trigger signal for EADC/DAC to
start conversion.
The PWM generator supports two standard PWM output modes: Independent mode and
Complementary mode, they have difference architecture. There are two output functions based
on standard output modes: Group function and Synchronous function. Group function can be
enabled under Independent mode or complementary mode. Synchronous function only enabled
under complementary mode. Complementary mode has two comparators to generate various
PWM pulse with 12-bit dead-time generator and another free trigger comparator to generate
trigger signal for EADC. For PWM output control unit, it supports polarity output, independent pin
mask and brake functions.
The PWM generator also supports input capture function. It supports latch PWM counter value to
corresponding register when input channel has a rising transition, falling transition or both
transition is happened. Capture function also support PDMA to transfer captured data to memory.
6.9.2 Features
6.9.2.1 PWM function features
 Supports maximum clock frequency up to144MHz
 Supports up to two PWM modules, each module provides 6 output channels.
 Supports independent mode for PWM output/Capture input channel
 Supports complementary mode for 3 complementary paired PWM output channel
 Dead-time insertion with 12-bit resolution
 Synchronous function for phase control
 Two compared values during one period
 Supports 12-bit pre-scalar from 1 to 4096
 Supports 16-bit resolution PWM counter
 Up, down and up/down counter operation type
 Supports one-shot or auto-reload counter operation mode
 Supports group function
 Supports synchronous function
 Supports mask function and tri-state enable for each PWM pin
 Supports brake function
 Brake source from pin, analog comparator and system safety events (clock
failed, SRAM parity error, Brown-out detection and CPU lockup).
 Noise filter for brake source from pin
 Edge detect brake source to control brake state until brake interrupt cleared
Jan. 06, 2016
Page 94 of 144
Rev.1.00