Motorola DSP56301 user manual Dpcr Mtie, Clrt, Rble

Models: DSP56301

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Image 193

HI32 Programming Model/Quick Reference

HI32 Registers—Quick Reference

Reg

 

 

 

Bit

 

 

Comments

Reset Type

 

 

 

 

 

 

 

 

 

Num

Mnemonic

 

Name

Val

Function

HS

PH

PS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DCTR

 

HM[2–0]

HI32 Mode

000

Terminate and Reset

changed to

 

 

 

cont.

 

 

 

 

001

PCI

non-zero value

 

 

 

 

 

 

 

 

010

UBM

only in PS reset

 

 

 

 

22-20

 

 

 

011

Enhanced UBM

 

$0

-

-

 

 

 

 

 

100

GPIO

 

 

 

 

 

 

 

 

 

101

Self-Configuration

 

 

 

 

 

 

 

 

 

11x

Reserved

 

 

 

 

DPCR

1

MTIE

Master Transmit

0

MTRQ interrupt disabled

 

0

-

-

 

 

Interrupt Enable

1

MTRQ interrupt enabled

 

 

 

 

 

 

 

 

 

2

MRIE

Master Receive

0

MRRQ interrupt disabled

 

0

-

-

 

 

Interrupt Enable

1

MRRQ interrupt enabled

 

 

 

 

 

 

 

 

 

4

MAIE

Master Address

0

A/DPER interrupt disabled

 

0

-

-

 

 

Interrupt Enable

1

A/DPER interrupt enabled

 

 

 

 

 

 

 

 

 

5

PEIE

Parity Error Interrupt

0

MARQ interrupt disabled

 

0

-

-

 

 

Enable

1

MARQ interrupt enabled

 

 

 

 

 

 

 

 

 

7

TAIE

Transaction Abort

0

M/TAB interrupt disabled

 

0

-

-

 

 

Interrupt Enable

1

M/TAB interrupt enabled

 

 

 

 

 

 

 

 

 

 

TTIE

Transaction

0

TO/DIS/RTY interrupt

 

 

 

 

 

9

 

Termination Interrupt

 

disabled

 

0

-

-

 

 

 

Enable

1

TO/DIS/RTY interrupt enabled

 

 

 

 

 

12

TCIE

Transfer Complete

0

HDTC interrupt disabled

 

0

-

-

 

 

Interrupt Enable

1

HDTC interrupt enabled

 

 

 

 

 

 

 

 

 

 

CLRT

Clear Transmitter

0

inactive

set only if

 

 

 

 

14

 

 

 

1

empty master transmitter path

hardware clears

0

-

-

 

 

 

 

 

 

 

MARQ = 1

 

 

 

 

 

MTT

Master Transfer

0

inactive

set only if

 

 

 

 

15

 

Terminate

1

terminate current PCI

hardware clears

0

-

-

 

 

 

 

 

 

transaction

MWS = 1

 

 

 

 

 

SERF

 

Force

0

inactive

cleared by

 

 

 

 

16

HSERR

0

-

-

 

 

 

 

1

generate a PCI system error

hardware

 

 

 

 

 

 

 

 

 

 

MACE

Master Access

0

unlimited burst length

 

 

 

 

 

18

 

Counter Enable

1

burst length is limited by the

 

0

-

-

 

 

 

 

 

 

BL value

 

 

 

 

 

 

MWSD

Master Wait State

0

HI32 master inserts wait

set only if MARQ

 

 

 

 

19

 

Disable

 

states

= 1

0

-

-

 

 

 

 

 

1

HI32 master releases bus

 

 

 

 

 

 

RBLE

Receive Buffer Lock

0

HI32 responds to new

changed only in

 

 

 

 

20

 

Enable

 

accesses

PS reset

0

-

-

 

 

 

 

1

HI32 retries accesses after

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

write accesses

 

 

 

 

 

 

IAE

Insert Address Enable

0

HI32 does not insert address

changed only in

 

 

 

 

21

 

 

 

1

HI32 inserts address in

PS reset

0

-

-

 

 

 

 

 

 

incoming data

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Host Interface (HI32)

6-75

Page 193
Image 193
Motorola DSP56301 user manual Dpcr Mtie, Clrt, Rble

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.