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.

a

ADMC330

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

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 1997

Single Chip DSP

Motor Controller

FUNCTIONAL BLOCK DIAGRAM

ARITHMETIC UNITS

SHIFTER

MAC

ALU

MEMORY

SPORT 0

SPORT 1

PROGRAM MEMORY ADDRESS

TIMER

DATA

MEMORY

1K

16

PROGRAM

ROM

2K

24

PROGRAM

RAM

2K

24

WATCH-

DOG

TIMER

8-BIT

PIO

12-BIT

3-PHASE

PWM

ANALOG

INPUTS

2

8-BIT

AUX

PWM

PROGRAM MEMORY DATA

DATA MEMORY ADDRESS

DATA MEMORY DATA

ADSP-2100 BASE

ARCHITECTURE

SERIAL PORTS

PROGRAM

SEQUENCER

DATA

ADDRESS

GENERATORS

DAG 1

DAG 2

FEATURES

Seven Analog Input Channels

Acquisition Synchronized to PWM Switching Frequency

Three-Phase 12-Bit PWM Generator

Programmable Deadtime and Narrow Pulse Deletion

2.5 kHz Minimum Switching Frequency

ECM Control Mode

Output Control for Space Vector Modulation

Gate Drive Block (Pulsed PWM Output Capability)

Hardwired Output Polarity Control

External Trip Input

Two 8-Bit Auxiliary PWM Timers

Synthesized Analog Output

39 kHz Frequency

0 to 99.6% Duty Cycle

Eight Bits of Digital I/O Port

Bit Configurable as Input or Output

Change of State Interrupt Support

20 MIPS Fixed Point DSP Core

Powerful Program Sequencer

Zero Overhead Looping

Conditional Instruction Execution

Independent Computational Units

ALU

Multiplier/Accumulator

Barrel Shifter

Multifunction Instructions

Single-Cycle Instruction Execution (50 ns)

Single-Cycle Context Switch

ADSP-2100 Family Code and Function Compatible with

Instruction Set Enhancements

16-Bit Watchdog Timer

Programmable 16-Bit Interval Timer with Prescaler

Two Synchronous Serial Ports

Full Debugger Interface

2 Bootstrap Protocols via Sport 1, Serial and UART

Memory Configuration

2K

24-Bit Word Program RAM

1K

16-Bit Word Data RAM

2K

24-Bit Word Program ROM

GENERAL DESCRIPTION

The ADMC330 is a low cost single chip DSP microcontroller

optimized for stand alone ac motor control applications. The

device is based on a 20 MHz fixed-point DSP core (ADSP-

2171) and a set of motor control peripherals including seven

analog input channels and a 12-bit three-phase PWM generator.

The device has two auxiliary 8-bit PWM channels and adds

expansion capability through the serial ports and an 8-bit digital

I/O port. The ADMC330 has internal 2K words program RAM,

and 1K words data RAM, which can be loaded from an external

device via the serial port. There are also 2K words of internal

program ROM, which includes a monitor that adds software

debugging features through the serial port.

The ADMC330 core combines the ADSP-2100 base architec-

ture (three computational units, data address generators and a

program sequencer) with two serial ports, a programmable

timer, extensive interrupt capabilities and on-chip program and

data memory.

In addition, the ADMC330 supports new instructions, which

include bit manipulations—bit set, bit clear, bit toggle, bit test—

new ALU constants, new multiplication instruction (x squared),

biased rounding and global interrupt masking, for increased

flexibility.