Port C Signals and Registers | Motorola DSP56301 instruction

General-Purpose Input/Output (GPIO)

5.4.2Port C Signals and Registers

Each of the six Port C signals not used as an ESSI0 signal can be configured as a GPIO signal. Three registers control the GPIO functionality of Port C: Port C control register (PCRC), Port C direction register (PRRC), and Port C data register (PDRC). Chapter 7, Enhanced Synchronous Serial Interface (ESSI) discusses these registers.

DSP56301

Enhanced Synchronous

Serial Interface Port 0

(ESSI0)

	Port C GPIO
SC0[0–2]	PC[0–2]
SCK0	PC3
SRD0	PC4
STD0	PC5

Figure 5-3.Port C Signals

5.4.3Port D Signals and Registers

Each of the six Port D signals not used as an ESSI1 signal can be configured as a GPIO signal. Three registers control the GPIO functionality of Port D: Port D control register (PCRD), Port D direction register (PRRD), and Port D data register (PDRD). Chapter 7, Enhanced Synchronous Serial Interface (ESSI) discusses these registers.

DSP56301

Enhanced Synchronous

Serial Interface Port 1

(ESSI1)

SC1[0–2]	Port D GPIO
SC1[0–2]	PD[0–2]
SCK1	PD3
SRD1	PD4
STD1	PD5

Figure 5-4.Port D Signals

5.4.4Port E Signals and Registers

Each of the three Port E signals not used as an SCI signal can be configured as a GPIO signal. Three registers control the GPIO functionality of Port E: Port E control register (PCRE), Port E direction register (PRRE), and Port E data register (PDRE). Chapter 8, Serial Communication Interface (SCI) discusses these registers.

DSP56301	RXD	Port E GPIO
	RXD	PE0
Serial	TXD	PE1
Communications	SCLK	PE2
Interface (SCI) Port	SCLK	PE2
	Figure 5-5.Port E Signals

5-6	DSP56301 User’s Manual

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.

Motorola DSP56301 user manual Port C Signals and Registers, Port D Signals and Registers

Models: DSP56301

5.4.2Port C Signals and Registers

DSP56301

Figure 5-3.Port C Signals

5.4.3Port D Signals and Registers

DSP56301

Figure 5-4.Port D Signals

5.4.4Port E Signals and Registers

DSP56301

Port E GPIO

Figure 5-5.Port E Signals

DSP56301 specifications