MPC5673K datasheet(15/140 Pages) FREESCALE

15 / 140 page

Overview

MPC5675K Microcontroller Data Sheet, Rev. 4

Preliminary—Subject to Change Without Notice

Freescale Semiconductor

— External ADC input, taking into account values set in ADC high and low limit registers

•

DMA support

1.4.20.2

Cross Triggering Unit (CTU)

The CTU provides automatic generation of ADC conversion requests on user selected conditions without

CPU load during the PWM period and with minimized CPU load for dynamic configuration.

The CTU implements the following features:

•

Cross triggering between ADC, FlexPWM, eTimer, and external pins

•

Double-buffered trigger generation unit with as many as eight independent triggers generated from

external triggers

•

Maximum operating frequency lower than or equal to platform

•

Trigger generation unit configurable in sequential mode or in triggered mode

•

Trigger delay unit to compensate the delay of external low-pass filter

•

Double-buffered global trigger unit allowing eTimer synchronization and/or ADC command

generation

•

Double-buffered ADC command list pointers to minimize ADC-trigger unit update

•

Double-buffered ADC conversion command list with as many as twenty-four ADC commands

•

Each trigger has the capability to generate consecutive commands

•

ADC conversion command allows controlling ADC channel from each ADC, single or

synchronous sampling, independent result queue selection

•

DMA support with safety features

1.4.20.3

Analog-to-Digital Converter (ADC)

•

Four independent ADCs with 12-bit A/D resolution

•

Common mode conversion range of 0–5 V or 0–3.3 V

•

Twenty-two single-ended input channels

•

Supports eight FIFO queues with fixed priority

•

Queue modes with priority-based preemption; initiated by software command, internal, or external

triggers

•

DMA and interrupt request support

1.4.20.4

eTimer module

Three 16-bit general purpose up/down timer/counters per module are implemented with the following

features:

•

Ability to operate up to platform frequency

•

Individual channel capability

— Input capture trigger

— Output compare

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