ADMCF340 Просмотр технического описания (PDF) - Analog Devices
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ADMCF340 Datasheet PDF : 40 Pages
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a DashDSPTM 64-Lead Flash Mixed-Signal DSP
with Enhanced Analog Front End
ADMCF340
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
Memory Configuration
512 ؋ 16-Bit Data Memory RAM
512 ؋ 24-Bit Program Memory RAM
4K ؋ 24-Bit Program Memory ROM
4K ؋ 24-Bit Total Program FLASH Memory
Three Independent FLASH Memory Sectors
3584 ؋ 24-Bit, 256 ؋ 24-Bit, 256 ؋ 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)
FUNCTIONAL BLOCK DIAGRAM
ADSP-21xx BASE
ARCHITECTURE
DATA
ADDRESS
GENERATORS
DAG 1 DAG 2
PROGRAM
SEQUENCER
MEMORY BLOCK
PROGRAM
ROM
4K ؋ 24
PROGRAM
RAM
512 ؋ 24
PROGRAM
FLASH
4K ؋ 24
DATA
MEMORY
512 ؋ 16
PROGRAM MEMORY ADDRESS
MOTOR CONTROL PERIPHERALS
ADC SUBSYSTEM
10
VREF
2.5V
ANALOG
INPUTS
3
ISENSE AMP
AND TRIP
SHA
TIMERS
6
16-BIT
THREE-
PHASE
PWM
DATA MEMORY ADDRESS
PROGRAM MEMORY DATA
DATA MEMORY DATA
ARITHMETIC UNITS
ALU MAC SHIFTER
POR
TIMER
SERIAL PORT
SPORT 0
SPORT 1
7
2 ؋ 16-BIT
PIO
AUX
PWM
25
2
WATCH-
DOG
TIMER
DashDSP is a trademark of Analog Devices, Inc.
REV. 0
Information furnished by Analog Devices is believed to be accu-
rate 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 that 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., 2002
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