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Analog Devices for its use, nor for any infringements of patents
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a
ADMCF340
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2002
FUNCTIONAL BLOCK DIAGRAM
V
REF
2.5V
MEMORY BLOCK
PROGRAM
ROM
4K H11547 24
PROGRAM
FLASH
4K H11547 24
PROGRAM
RAM
512 H11547 24
DATA
MEMORY
512 H11547 16
ANALOG
INPUTS
16-BIT
THREE-
PHASE
PWM
TIMER
SERIAL PORT
SPORT 0
PIO
2 H11547 16-BIT
AUX
PWM
WATCH-
DOG
TIMER
ADSP-21xx BASE
ARCHITECTURE
DATA
ADDRESS
GENERATORS
DAG 1 DAG 2
PROGRAM
SEQUENCER
ARITHMETIC UNITS
SHIFTERMACALU
PROGRAM MEMORY ADDRESS
DATA MEMORY ADDRESS
PROGRAM MEMORY DATA
DATA MEMORY DATA
SPORT 1
MOTOR CONTROL PERIPHERALS
ADC SUBSYSTEM
SHA
3
10
TIMERS
6
POR
I
SENSE
AMP
AND TRIP
225
7
DashDSP
TM
64-Lead Flash Mixed-Signal DSP
with Enhanced Analog Front End
TARGET APPLICATIONS
Refrigerator and Air Conditioner Compressors,
Washing Machines
Industrial Variable Speed Drives, HVAC
MOTOR TYPES
Permanent Magnet Synchronous Motors (PMSM),
Brushless DC Motors (BDCM), AC Induction Motors
(ACIM), Switched Reluctance Motors (SRM)
FEATURES
20 MHz Fixed-Point DSP Core
Single Cycle Instruction Execution (50 ns)
ADSP-21xx Family Code Compatibility
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
DashDSP is a trademark of Analog Devices, Inc.
Memory Configuration
512 H11547 16-Bit Data Memory RAM
512 H11547 24-Bit Program Memory RAM
4K H11547 24-Bit Program Memory ROM
4K H11547 24-Bit Total Program FLASH Memory
Three Independent FLASH Memory Sectors
3584 H11547 24-Bit, 256 H11547 24-Bit, 256 H11547 24-Bit
Low Cost Pin-Compatible ROM Option
16-Bit Watchdog Timer
Programmable 16-Bit Internal Timer with Prescaler
Two Double Buffered Serial Ports with SPI Mode
Support
Integrated Power On Reset Function
Three Phase 16-Bit PWM Generation Unit
16-Bit Center-Based PWM Generator
Programmable PWM Pulsewidth
Edge Resolution of 50 ns
Programmable Narrow Pulse Deletion
153 Hz Minimum Switching Frequency
Double/Single Update Mode Control
Individual Enable and Disable for Each PWM
Output
High Frequency Chopping Mode for
Transformer-Coupled Gate Drives
(continued on page 8)