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ADMC300 Scheda tecnica(PDF) 7 Page - Analog Devices |
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ADMC300 Scheda tecnica(HTML) 7 Page - Analog Devices |
7 / 42 page ADMC300 –7– REV. B Flexible Encoder Interface Subsystem Incremental Encoder Interface Dedicated Three Pin Interface (EIA, EIB, EIZP) 16-Bit Quadrature Counter Input Encoder Signals to 3.1 MHz Optional Use of Zero Marker to Reset Counter Single North Marker Mode—Permits Single Reset of Counter On Only First Zero Marker Status Bits to Read Encoder Inputs Companion Encoder Event System for Accuracy Enhancements at Low Speeds Associated EIU Loop Timer Permits Regular, Programmable Updating of All Encoder and Event Timer Registers EIU Timer Can Also Be Used as General Purpose Timer If Not Linked to EIU Block Peripheral I/O (PIO) Subsystem 12-Pin Digital I/O Port Bit Configurable as Input or Output Each Pin Configurable as Rising Edge, Falling Edge, High Level or Low Level Interrupt Four Dedicated PIO Interrupts for PIO0 to PIO3 One Combined Interrupt for PIO4 to PIO11 Each I/O Line Configurable as PWM Trip Source Two 8-Bit Auxiliary PWM Outputs Synthesized Analog Output Fixed 48.8 kHz Operation 0 to 99.6% Duty Cycle Event Timer Unit Two Event Timer Channels with Dedicated Event Capture Blocks Permits Timing of Duty-Cycle, Period and Frequency Configurable Event Definition Dedicated Event Timer Interrupt Event Timer Readable On-the-Fly 16-Bit Watchdog Timer Programmable 16-Bit Interval 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 (Continued from Page 1) GENERAL DESCRIPTION The ADMC300 is a single-chip DSP-based controller, suitable for high performance control of ac induction motors, permanent magnet synchronous motors and brushless dc motors. The ADMC300 integrates a 25 MIPS, fixed-point DSP core with a complete set of motor control peripherals that permits fast, efficient development of servo motor controllers. The DSP core of the ADMC300 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 manipu- lation, multiplication (X squared), biased rounding and global interrupt masking. In addition, two flexible, double-buffered, bidirectional, synchronous serial ports are included in the ADMC300. The ADMC300 provides 4K × 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 either a serial SROM/ E 2PROM, asynchronous (UART) connection, or synchro- nous connection. The program memory ROM includes a monitor that adds software debugging features through the serial port. In addition, a number of pre-programmed math- ematical and motor control functions are included in the program memory ROM. The motor control peripherals of the ADMC300 comprise a high performance, five channel ADC system that uses sigma- delta conversion technology offering a typical signal-to-noise ratio (SNR) of 76 dB, equivalent to 12 bits. In addition, a 16-bit center-based PWM generation unit can be used to produce high accuracy PWM signals with minimal processor overhead. The ADMC300 also contains a flexible encoder interface unit for position sensor feedback, two auxiliary PWM outputs, twelve lines of digital I/O, a two-channel event capture system, a 16-bit watchdog timer, a 16-bit interval timer and a programmable interrupt controller that manages all peripheral interrupts. |
Codice articolo simile - ADMC300_15 |
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Descrizione simile - ADMC300_15 |
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