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Motorola DSP56301 user manual Appendix a

Models: DSP56301

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Appendix A

Bootstrap Program

This appendix lists the bootstrap program for the DSP56301.

;BOOTSTRAP CODE FOR DSP56301 - (C) Copyright 1996,1999 Motorola Inc.

;Original June 18, 1996.

;Revised Februaury 1999 to add burnin and serial eprom.

;

;Bootstrap through the Host Interface, External EPROM or SCI.

; This is the Bootstrap program contained in the DSP56301

;

;3K Boot ROM (K30A only).

; This program can load any program RAM segment from an external

;

;EPROM, from the Host Interface or from the SCI serial interface.

;;;;;;;;;;;;;;;;;;;; MEMORY EQUATES ;;;;;;;;;;;;;;;;;;;;;;;;

EQUALDATA

equ

1

;; 1 if xram and yram are of equal

 

 

 

;; size and addresses, 0 otherwise.

if

(EQUALDATA)

 

 

start_dram

equ

0

;; 2k

X and Y RAM

length_dram

equ

$0800

;; same addresses

else

 

 

 

 

start_xram

equ

0

;; 2k

XRAM

length_xram

equ

$0800

 

 

start_yram

equ

0

;; 2k

YRAM

length_yram

equ

$0800

 

 

endif

 

 

 

 

start_pram

equ

0

;; 4k

PRAM

length_pram

equ

$1000

 

 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

; If MD:MC:MB:MA=x000, then

the

Boot ROM is bypassed

and the DSP56301

; will start fetching instructions

beginning with address $C00000 (MD=0)

; or $008000

(MD=1)

assuming

that an external

memory

of SRAM type is

; used. The

accesses

will

be

performed using

31 wait

states with no

;address attributes selected (default area).

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;

If MD:MC:MB:MA=x001,

then it

loads a

program

RAM segment

from

;

consecutive byte-wide

P memory

locations,

starting

at P:$D00000

(bits

DSP56301 User’s Manual

A-1

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Motorola DSP56301 user manual Appendix a
Page 296 Page 298

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.