Motorola DSP56301 instruction

Programming Sheets

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Sheet 3 of 10

Host Processor (HI32)

Data Transfer Format Control, Bits 23–22HI32-PCI data transfer formats, as follows:

PCI DSP-to-Host (data in DTXM)

00 32-bit data mode

01Data to HAD[31–0] right-aligned and zero extended in MSB

10Data to HAD[31–0] right-aligned and sign extended in MSB

11Data to HAD[31–0] left-aligned and zero filled in LSB

PCI Host-to-DSP

00 32-bit data mode

013 LSB PCI data to DRXR from HAD[23–0]

103 LSB PCI data to DRXR from HAD[23–0]

113 MSB PCI data to DRXR from HAD[31–8]

Note: LSB = least significant byte; MSB = most significant byte

PCI Data Burst Length, Bits 21–16

The value is the desired number of burst accesses – 1.

DSP PCI Transaction Address (High), Bits 15–0

The two most significant bytes of the 32-bit

PCI transaction address.

23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
FC1	FC0	BL5	BL4	BL3	BL2	BL1	BL0	AR31	AR30	AR29	AR28	AR27	AR26	AR25	AR24	AR23	AR22	AR21	AR20	AR19	AR18	AR17	AR16

DSP PCI Master Control Register (DPMC) Address: X:FFFFC7 Read/Write

Reset = $000000

Note: All bits work only in PCI mode (DCTR[HM] = $1). You can write to the DPMC only if MARQ is set or the system is in Self-Configuration mode.

Figure B-12.DSP PCI Master Control Register (DPMC)

B-24	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 Figure B-12.DSP PCI Master Control Register Dpmc

Models: DSP56301

Host Processor (HI32)

PCI DSP-to-Host (data in DTXM)

PCI Host-to-DSP

Figure B-12.DSP PCI Master Control Register (DPMC)

DSP56301 specifications