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ADMCF327

28-Lead Flash Memory DSP Switched Reluctance Motor Controller

Analog Devices 

a 28-Lead Flash Memory

DSP Switched Reluctance Motor Controller

ADMCF327

TARGET APPLICATIONS

Washing Machines, Refrigerator Compressors, Fans,

Pumps, Industrial Variable Speed Drives

MOTOR TYPE

Switched Reluctance Motors (SR)

FEATURES

20 MIPS Fixed-Point DSP Core

Single Cycle Instruction Execution (50 ns)

ADSP-21xx Family Code Compatible

Independent Computational Units

ALU

Multiplier/Accumulator

Barrel Shifter

Multifunction Instructions

Single Cycle Context Switch

Powerful Program Sequencer

Zero Overhead Looping

Conditional Instruction Execution

Two Independent Data Address Generators

Memory Configuration

512 ؋ 24-Bit Program Memory RAM

512 ؋ 16-Bit Data Memory RAM

4K ؋ 24-Bit Program Memory ROM

4K ؋ 24-Bit Program Flash Memory

Three Independent Programmable Sectors

Security Lock Bit

10K Erase/Program Cycles

Three-Phase 16-Bit PWM Generator

16-Bit Center-Based PWM Generator

Programmable Dead Time and Narrow Pulse Deletion

Edge Resolution to 50 ns

150 Hz Minimum Switching Frequency

Double/Single Duty Cycle Update Mode Control

Programmable PWM Pulsewidth

Special Crossover Function for Brushless DC Motors

Individual Enable and Disable for Each PWM Output

High Frequency Chopping Mode for Transformer

Coupled Gate Drives

External PWMTRIP Pin

Integrated ADC Subsystem

Six Analog Inputs

Acquisition Synchronized to PWM Switching Frequency

Internal Voltage Reference

9-Pin Digital I/O Port

Bit Configurable as Input or Output

Change of State Interrupt Support

Two 8-Bit Auxiliary PWM Timers

Synthesized Analog Output

Programmable Frequency

0% to 100% Duty Cycle

Two Programmable Operational Modes

Independent Mode/Offset Mode

16-Bit Watchdog Timer

Programmable 16-Bit Internal Timer with Prescaler

Double Buffered Synchronous Serial Port

Hardware Support for UART Emulation

Integrated Power-On Reset Function Options

28-Lead SOIC Package

FUNCTIONAL BLOCK DIAGRAM

ADSP-2100 BASE

ARCHITECTURE

DATA

ADDRESS

GENERATORS

DAG 1 DAG 2

PROGRAM

SEQUENCER

MEMORY BLOCK

PROGRAM PROGRAM

ROM

FLASH

4K ؋ 24

4K ؋ 24

PROGRAM DATA

RAM

MEMORY

512 ؋ 24 512 ؋ 16

VREF

2.5V

PROGRAM MEMORY ADDRESS

DATA MEMORY ADDRESS

PROGRAM MEMORY DATA

DATA MEMORY DATA

6

ANALOG

INPUTS

16-BIT

THREE-

PHASE

PWM

ARITHMETIC UNITS

ALU MAC SHIFTER

POR

TIMER

SERIAL PORT

SPORT 1

9-BIT

PIO

2 ؋ 8-BIT WATCH-

AUX

DOG

PWM

TIMER

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 2001

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