2163

ADSP-2163: Technical Summary

Overview

The ADSP-2163 is a member of the ADSP-2100 family of digital signal processors (DSPs), designed for high-performance digital signal processing and numeric-intensive applications. Built upon a common DSP core architecture, the ADSP-2163 integrates computation units, data address generators, and a program sequencer with enhanced on-chip memory and peripheral features. This processor is optimized for real-time signal processing tasks, offering a balance of speed, efficiency, and flexibility for embedded systems.

The ADSP-2163 is particularly well-suited for applications requiring high-speed arithmetic operations, such as audio processing, telecommunications, and industrial control systems. Its Harvard architecture, featuring separate program and data memory buses, ensures maximum throughput by allowing simultaneous instruction fetches and data accesses.

Key Features

• High Performance: 25 MIPS operation with a 40 ns maximum instruction cycle time.
• Harvard Architecture: Separate on-chip buses for program and data memory for concurrent access.
• Three-Bus Performance: Program memory can store both instructions and data, enhancing efficiency.
• Dual Data Address Generators: Support modulo and bit-reverse addressing for efficient FFT and other DSP algorithms.
• Zero-Overhead Looping: Single-cycle loop setup for seamless iterative processing.
• On-Chip Memory Bootstrapping: Automatic loading of program memory from external byte-wide memory (e.g., EPROM).
• Double-Buffered Serial Ports: Support companding (μ-law/A-law), automatic data buffering, and multichannel operation.
• Host Interface Port: Simplifies communication with external host processors (ADSP-2111 feature).
• Programmable Timer: Provides flexible timing control for real-time applications.

Applications

The ADSP-2163 is widely used in applications requiring high-speed numeric computation and real-time signal processing. Key application areas include:

• Audio Processing: Real-time audio effects, speech recognition, and synthesis.
• Telecommunications: Modems, echo cancellation, and voice compression.
• Industrial Control: Motor control, sensor signal processing, and automation systems.
• Medical Devices: Biomedical signal analysis and imaging systems.
• Military/Aerospace: Radar, sonar, and secure communications.

Electrical Characteristics

The ADSP-2163 operates under the following key electrical specifications:

• Supply Voltage: 5V ±10% (standard operation).
• Power Consumption: Varies with clock speed; typically under 1W at full performance.
• Clock Frequency: Up to 25 MHz, supporting 40 ns instruction cycles.
• I/O Voltage Levels: TTL-compatible inputs and outputs.
• Operating Temperature Range: Commercial (0°C to +70°C) and Industrial (-40°C to +85°C) variants available.

Architecture and Functional Description

The ADSP-2163 is built around a modified Harvard architecture, which allows simultaneous access to program instructions and data. The core consists of:

• Arithmetic Logic Unit (ALU): Supports 16-bit fixed-point arithmetic and logical operations.
• Multiplier-Accumulator (MAC): High-speed 16x16-bit multiplier with a 40-bit accumulator for DSP operations.
• Program Sequencer: Manages instruction flow with zero-overhead looping and conditional branching.
• Data Address Generators (DAGs): Two DAGs provide efficient memory addressing for circular buffers and bit-reversed FFTs.
• On-Chip Memory: Includes dedicated program and data RAM for fast access.

Serial Ports and Communication

The ADSP-2163 features double-buffered serial ports with the following capabilities:

• Companding Hardware: Built-in support for μ-law and A-law compression/expansion.
• Automatic Data Buffering: Reduces CPU overhead during serial data transfers.
• Multichannel Operation: Supports time-division multiplexed (TDM) serial streams.

Package Information

The ADSP-2163 is available in multiple package options to suit different application requirements:

• Plastic Leaded Chip Carrier (PLCC): 68-pin package for easy prototyping.
• Quad Flat Package (QFP): Space-efficient surface-mount option.
• Ceramic Packages: Available for high-reliability applications.

Pin configurations include dedicated power, ground, and I/O pins, with specific layouts optimized for signal integrity and thermal performance.

Development Support

To facilitate design and debugging, the ADSP-2163 is supported by a comprehensive suite of development tools, including:

• Assembler/Linker: For code development and memory mapping.
• Emulators: Hardware debuggers for real-time system analysis.
• Software Libraries: Optimized DSP routines for common algorithms.

Conclusion

The ADSP-2163 is a versatile and high-performance DSP processor, offering a robust feature set for demanding signal processing tasks. Its combination of speed, on-chip memory, and flexible peripherals makes it an excellent choice for embedded systems requiring real-time numeric computation. With extensive development support and multiple packaging options, the ADSP-2163 remains a reliable solution for engineers across industries.