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ADMC331BST 데이터시트(PDF) 7 Page - Analog Devices |
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ADMC331BST 데이터시트(HTML) 7 Page - Analog Devices |
7 / 36 page ADMC331 –7– REV. B (Continued from page 1) 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 E2PROM/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 –40 C to +85 C GENERAL DESCRIPTION The ADMC331 is a low cost, single-chip DSP-based controller, suitable for ac induction motors, permanent magnet synchro- nous 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 per- mits fast, efficient development of motor controllers. 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 genera- tors and a program sequencer. The computational units com- prise an ALU, a multiplier/accumulator (MAC) and a barrel shifter. The ADSP-2171 adds new instructions for bit manipula- tion, 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), E 2PROM, 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 watch- dog timer and expanded capability through the serial ports and 24-bit digital I/O ports. |
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