MAC7200 datasheet(758/976 Pages) FREESCALE

758 / 976 page

eMIOS Differences between MAC72x2 and MAC72x1

MAC7200 Microcontroller Family Reference Manual, Rev. 2

680

Freescale Semiconductor

c) If A == 0, provide a 0% duty cycle without having to manipulate the EDPOL bit.

d) If A >= B, provide a 100% duty cycle without having to manipulate the EDPOL bit.

•

Fixed MUCts01793: Corner case violates coherent access in IPWM/IPM modes

32.8

eMIOS Differences between MAC72x2 and MAC72x1

•

Switched from 8 channels (Channels 0-7) to 16 channels (Channels 0-15)

— Use channels 0-15

— Channel 15 can now drive Counter Bus A

32.9

Enabling the eMIOS

Before the eMIOS can be used, it must be explicitly enabled by clearing the MDIS bit.

32.10 The eMIOS Module

32.10.1 Overview

The Enhanced Modular I/O Subsystem (eMIOS) provides functionality to generate or measure timed

events. Its overall architecture resembles that of the MIOS .

The MIOS provides a framework where a set of sublocks with different timer functions are assembled to

attend the specific needs of an MCU.

The eMIOS builds on this concept by using a Unified Channel module that provides a superset of the

functionality of all the individual MIOS channels, while providing a consistent user interface. This allows

more flexibility as each Unified Channel can be programmed for different functions in different

applications of the MCU.

32.10.2 Block Diagram

Figure 32-2 shows the block diagram of the eMIOS as implemented on the MAC72x2.

MAC7200 Datasheet(PDF) 758 Page - Freescale Semiconductor, Inc