The ADMCF326 is a low cost, single-chip DSP-based controller, suitable for permanent magnet synchronous motors, ac induction motors, and brushless dc motors. The ADMCF326 integrates a 20 MIPS, fixed-point DSP core with a complete set of motor control and system peripherals that permits fast, efficient devel opment of motor controllers.
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
