Motorola DSP56301 user manual Chapter B, Programming Reference

Models: DSP56301

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Chapter B

Programming Reference

This reference for programmers includes a table showing the addresses of all DSP memory-mapped peripherals, an exception priority table, and programming sheets for the major programmable DSP registers. The programming sheets are grouped in the following order: central processor, Phase Lock Loop, (PLL), Enhanced Synchronous Serial Interface (ESSI), Serial Communication Interface (SCI), Timer, and GPIO. Each sheet provides room to write in the value of each bit and the hexadecimal value for each register. You can photocopy these sheets and reuse them for each application development project. For details on the instruction set of the DSP56300 family of DSPs, see the DSP56300 Family Manual. There is a programmer’s reference for each of the peripherals in the respective peripheral chapters.

νTable B-2,Internal I/O Memory Map (X Data Memory), on page B-3lists the memory addresses of all on-chip peripherals.

νTable B-3,Interrupt Sources, on page B-9lists the interrupt starting addresses and sources.

νTable B-4,Interrupt Source Priorities Within an IPL, on page B-11lists the priorities of specific interrupts within interrupt priority levels.

νThe programming sheets appear in this manual as figures (listed in Table B-1); they show the major programmable registers on the DSP56301.

Programming Reference

B-1

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Motorola DSP56301 user manual Chapter B, Programming Reference

DSP56301 specifications

The Motorola DSP56301 is a highly efficient digital signal processor, specifically engineered for real-time audio and speech processing applications. This DSP is part of Motorola's renowned DSP56300 family, which is recognized for its innovative features and outstanding performance in the realm of digital signal processing.

One of the main features of the DSP56301 is its ability to handle complex computations at high speeds. With a maximum clock frequency of 66 MHz, it delivers fast performance, enabling it to process audio signals in real time. The chip is built on a 24-bit architecture, which allows for high-resolution audio processing. This is particularly beneficial in applications such as telecommunications, consumer audio devices, and professional audio equipment, where precision is paramount.

The DSP56301 boasts a comprehensive instruction set that includes efficient mathematical operations, which are essential for digital filters and audio effects processing. One of the key innovations of this device is its dual data path architecture, which permits simultaneous processing of multiple data streams. This feature significantly enhances the device's throughput and responsiveness, making it suitable for demanding applications such as voice recognition and synthesis.

In terms of memory regions, the DSP56301 includes several on-chip memory categories, such as program memory, data memory, and a specialized memory for coefficients. The architecture's support for external memory expansion further increases its versatility, allowing designers to tailor systems to their specific requirements.

The DSP56301 implements advanced features such as a powerful on-chip hardware multiplier and accumulator, simplifying complex mathematical tasks and accelerating the execution of algorithms. Its flexible interrupt system enhances its capability to respond to time-sensitive operations, while the integrated serial ports facilitate efficient data communication with external devices.

Power consumption is also a vital characteristic of the DSP56301. It is designed with energy efficiency in mind, allowing for extended operation in battery-powered devices. The chip’s low power requirements are particularly advantageous in portable audio devices and other applications where energy conservation is crucial.

In conclusion, the Motorola DSP56301 is an exceptional digital signal processor that combines high processing power, flexibility, and efficiency. Its main features, advanced technologies, and robust architecture make it a top choice for developers seeking to create sophisticated audio and signal processing systems. With its enduring legacy in the industry, the DSP56301 continues to be relevant in a variety of modern applications, ensuring it remains a valuable tool for engineers and designers.