DSP Host Port Gpio Direction Register Dirh

HI32 DSP-Side Programming Model

6.7.10DSP Host Port GPIO Direction Register (DIRH)

23	22	21	20	19	18	17	16

DIR23	DIR22	DIR21	DIR20	DIR19	DIR18	DIR17	DIR16

15	14	13	12	11	10	9	8

DIR15	DIR14	DIR13	DIR12	DIR11	DIR10	DIR9	DIR8

7	6	5	4	3	2	1	0

DIR7	DIR6	DIR5	DIR4	DIR3	DIR2	DIR1	DIR0

Figure 6-11.DSP Host Port Direction Register (DIRH)

A 24-bit read/write register by which the DSP56300 core controls the direction of the host port pins in GPIO mode. The host processor cannot access DIRH. The DIR[23–0] bits define the corresponding GPIO pins as input or output. The functionality of DIR[23–0] is defined in Table 6-16. Hardware and software resets clear all DIRH bits.

Table 6-16.DATH and DIRH Functionality

	DATx
DIRx
DIRx	GPIO Pin1	Non-GPIO Pin1
	GPIO Pin1	Non-GPIO Pin1

0	Read-only bit. The value read is the binary value of	Read-only bit. Does not contain significant data.
	the pin. The corresponding pin is configured as an
	input.

1	Read/write bit. The value written is the value read.	Read/write bit. The value written is the value read.
	The corresponding pin is configured as an output,
	and is driven with the data written to DATx.

Note:	1. Defined by the selected mode

6.7.11DSP Host Port GPIO Data Register (DATH)

23	22	21	20	19	18	17	16

DAT23	DAT22	DAT21	DAT20	DAT19	DAT18	DAT17	DAT16

15	14	13	12	11	10	9	8

DAT15	DAT14	DAT13	DAT12	DAT11	DAT10	DAT9	DAT8

7	6	5	4	3	2	1	0

DAT7	DAT6	DAT5	DAT4	DAT3	DAT2	DAT1	DAT0

Figure 6-12.DSP Host Port GPIO Data Register (DATH)

A 24-bit read/write data register by which the DSP56300 core reads or writes data to/from host port pins configured as GPIO. The host processor cannot access DATH. DAT[23– 0] read or write data from/to the corresponding GPIO pin. The functionality of the DAT[23–0] bits is defined in Table 6-16. Hardware and software resets clear all DATH bits.

Host Interface (HI32)

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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 DSP Host Port Gpio Direction Register Dirh, DATH and Dirh Functionality

Models: DSP56301