© Freescale Semiconductor, Inc., 2004. All rights reserved.

• Preliminary

Freescale Semiconductor

Product Brief

MAC7100PB

Rev. 2, 09/2004

This document contains information on a new product. Specifications and information herein

are subject to change without notice.

Table of Contents

MAC7100 microcontrollers (MCUs) are members of a

pin-compatible family of 32-bit Flash-memory-based

devices developed specifically for embedded automotive

applications. The pin-compatible family concept enables

users to select between different memory and peripheral

options for scalable designs. All MAC7100 devices are

composed of an ARM7TDMI-S™ 32-bit central

processing unit, up to 1 Mbyte of high performance

embedded Flash memory for program storage, an

optional 32 Kbytes of embedded Flash for data and/or

program storage, and up to 48 Kbytes of RAM.

As shown in Table 1 and Figure 1, the MAC7100 family

is implemented with a variety of on-chip peripherals. An

enhanced DMA (eDMA) controller executes in parallel

with the CPU to improve the performance of data

transfers between memory and many of the peripherals.

DMA transfers may be triggered by various peripheral

events, such as data frame transmission or reception,

elapsed timer periods, and analog-to-data conversion

completions. The peripheral set includes enhanced

asynchronous serial communications interfaces (eSCI)

with Local Interconnect Network (LIN) support

hardware to reduce interrupt overhead, serial peripheral

interfaces (DSPI) with flexible chip selects and fast baud

1

Block Diagram......................................................... 3

2

Features ..................................................................4

3

Modes of Operation ................................................ 8

3.1

Chip Configuration Modes ................................... 8

3.2

Low-Power Modes ............................................... 9

4

Functional Overview ............................................... 9

4.1

32-bit ARM7TDMI-S RISC Core.......................... 9

4.2

Enhanced Direct Memory Access (eDMA) and

Channel Multiplexer (DMA MUX) ...................... 10

4.3

External Interface Module (EIM)........................ 10

4.4

Common Flash Module (CFM) .......................... 10

4.5

Interrupt Controller (INTC)................................. 10

4.6

Port Integration Module (PIM) ........................... 11

4.7

Analog-to-Digital Converters (ATD) ................... 11

4.8

CAN 2.0 Software Compatible (FlexCAN)

Modules............................................................. 12

4.9

Enhanced Modular I/O Subsystem (eMIOS) ..... 12

4.10

Serial Peripheral Interfaces (DSPI) ................... 12

4.11

Enhanced Serial Communications Interfaces

(eSCI) ................................................................13

4.12

Inter-Integrated Circuit (I2C) Bus Module .......... 13

4.13

Periodic Interrupt Timer (PIT) Module ............... 13

4.14

Miscellaneous Control Module (MCM) and

Cross-Bar Switch (XBS) ....................................13

4.15

System Services Module (SSM)........................ 14

4.16

Voltage Regulator Module (VREG).................... 14

4.17

System Clocks (OSC and CRG)...... 14

4.18

Development Support...................... 15

5

Documentation and Ordering.............. 15

MAC7100 Microcontroller Family

Product Brief

32-bit Embedded Controller Division