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© Freescale Semiconductor, Inc. 2005

Document Number: MC9S12A128FS

REV 4

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Features

Benefits

Clock Generation Module with Phase-Lock Loop (PLL)

> Clock monitor with limp home mode in case of

no external clock

> Programmable clock frequency with 1024

options ranging from divide by 16 to multiply

by 64 form base oscillator

> Real-time interrupt

> Watchdog

> Reliable, robust operation

> Provides high performance using low-cost

reference crystals

> Reduces generated noise

> Reduces power consumption

> Easily able to implement real-time clock

Enhanced Capture Timer

> 8-channel, 16-bit with input capture, output

compare and pulse accumulator

> 16-bit modulus down counter

> Flexible, programmable timer system

8-bit or 16-bit Pulse-Wide Modulation (PWM)

> 8-channel, 8-bit or 4-channel, 16-bit PWM

> PWM supports center-aligned operation

> Efficiently implement motor control, battery

charging or digital-to-analog (DAC) functions

Two Serial Communications Interfaces

> 8192 prescaler option

> Asynchronous communication between the

MCU and a terminal, computer or

a network of MCUs

Two Serial Peripheral Interfaces

> 256 clock rate options

> High-speed synchronous communication

between multiple MCUs or between MCU and

serial peripherals

Application Notes and Engineering Bulletins

AN2206

Security and Protection on the HCS12 Family

AN2213

Using Cosmic Software’s M68HC12 Compiler for MC9S12DP256 Software Development

AN2216

MC9S12DP256 Software Development Using Metrowerks CodeWarrior™

AN2250

Audio Reproduction on HCS12 Microcontrollers

EB386

HCS12 D-Family Compatibility

> Provides a simple, efficient method

of data exchange between devices

> Minimizes the need for large numbers

of connections between devices and

eliminates the need for an address decoder

Up to 91 Input/Output (I/O) Lines

> Programmable pull-ups/pull-downs

> Dual drive capability

> Reduce system cost

> Able to tailor application for minimum EMC or

high current loads

112-Lead LQFP

80-Lead LQFP

Package Options

Part Number

Package

Temp. Range

MC9S12A128CFU

80 QFP

-40°C to +85°C

MC9S12A128CPV

112 LQFP

-40°C to +85°C

Cost-Effective Development Tools

For more information on development tools, please refer to

the Freescale Development Tool Selector Guide (SG1011).

M68KIT912DP256

Evaluation kit for development and

$495

evaluation of HCS12 application

code that includes the

M68EVB912DP256 and

USBMULTILINKBDM

M68CYCLONEPRO

HC08/HCS08/HC12/HCS12

$499

stand-alone Flash programmer or

in-circuit emulator, debugger, Flash

programmer; USB, serial or Ethernet

interface options

USBMULTILINKBDM Universal HCS08/HCS12 in-circuit

$99

emulator, debugger, and Flash

programmer; USB PC interface

CWX-H12-SE

CodeWarrior™ Special Edition for

Free

HCS12 MCUs; includes integrated

development environment (IDE),

linker, debugger, unlimited

assembler, Processor Expert™

auto-code generator, full-chip

simulation and limited C compiler

Data Sheets

S12DT128DGV2

MC9S12A128 Device Guide

S12DT128PIMV1

MC9S12A128 Port Integration Module

Block Guide

S12ATD10B8CV2

HCS12 10-bit 8-channel Analog to

Digital Block Guide

S12BDMV4

HCS12 Background Debug (BDM)

Block Guide

S12BKVD1

HCS12 Breakpoint (BKP) Block Guide

S12CPUV2

HCS12 CPU Reference Manual

S12CRGV3

HCS12 Clock Reset Generator

Block Guide

S12EETS2KV1

HCS12 2K EEPROM Block Guide

S12FTS128KV1

HCS12 128K Flash Block Guide

S12IICV2

S12INTV1

HCS12 Interrupt (INT) Block Guide

S12MEBIV3

HCS12 Multiplexed External Bus

Interface (MEBI) Block Guide

S12MMCV4

HCS12 Module Mapping Control

(MMC) Block Guide

S12PWM8B8CV1

HCS12 8-bit 8-channel Pulse-Width

Modulator Block Guide

S12SCIV2

HCS12 Serial Communications

Interface Block Guide

S12SPIV2

HCS12 Serial Peripheral Interface

Block Guide

S12TIM16B8CV1

HCS12 16-bit 8-channel Timer

Block Guide

S12VREGV1

HCS12 Voltage Regulator Block Guide