Download ADMC331 Single Chip DSP Motor Controller

ADMC331
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GENERAL DESCRIPTION
The ADMC331 is a low cost, single-chip DSP-based controller,
suitable for ac induction motors, permanent magnet synchronous motors, brushless dc motors, and switched reluctance
motors. The ADMC331 integrates a 26 MIPS, fixed-point DSP
core with a complete set of motor control peripherals that permits fast, efficient development of motor controllers.
Two Programmable Operational Modes
Independent Mode
Offset Mode
16-Bit Watchdog Timer
Programmable 16-Bit Internal Timer with Prescaler
Two Double Buffered Synchronous Serial Ports
Four Boot Load Protocols via SPORT1
E 2PROM/SROM Booting
UART Booting (SCI Compatible) with Autobaud
Feature
Synchronous Master Booting with Autobaud Feature
Synchronous Slave Booting with Autobaud Feature
Debugger Interface via SPORT1 with Autobaud (UART
and Synchronous Supported)
ROM Utilities
Full Debugger for Program Development
Preprogrammed Math Functions
Preprogrammed Motor Control Functions—Vector
Transformations
80-Lead TQFP Package
Industrial Temperature Range –40C to +85C
The DSP core of the ADMC331 is the ADSP-2171, which is
completely code compatible with the ADSP-2100 DSP family
and combines three computational units, data address generators and a program sequencer. The computational units comprise an ALU, a multiplier/accumulator (MAC) and a barrel
shifter. The ADSP-2171 adds new instructions for bit manipulation, multiplication (X squared), biased rounding and global
interrupt masking. In addition, two flexible, double-buffered,
bidirectional, synchronous serial ports are included in the
ADMC331.
The ADMC331 provides 2K × 24-bit program memory RAM,
2K × 24-bit program memory ROM and 1K × 16-bit data
memory RAM. The program and data memory RAM can be
boot loaded through the serial port from a Serial ROM (SROM),
E2PROM, asynchronous (UART) connection or synchronous
connection. The program memory ROM includes a monitor
that adds software debugging features through the serial port. In
addition, a number of preprogrammed mathematical and motor
control functions are included in the program memory ROM.
The motor control peripherals of the ADMC331 include a
16-bit center-based PWM generation unit that can be used to
produce high accuracy PWM signals with minimal processor
overhead and seven analog input channels. The device also
contains two auxiliary 8-bit PWM channels, a 16-bit watchdog timer and expanded capability through the serial ports
and 24-bit digital I/O ports.
REV. B
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