Datasheet > DSP56012DS

DSP56012DS

更新时间： 2024-11-23 23:49:15

品牌	Logo	应用领域
其他 - ETC		DVD
页数	文件大小	规格书
73页	746K
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DSP56012 24-Bit DVD Digital Signal Datasheet

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DSP56012DS 数据手册

Freescale Semiconductor, Inc.

MOTOROLA

Semiconductor Technical Data

DSP56012/D

Rev. 0, 09/98

Advance Information

DSP56012 24-Bit DVD Digital Signal Processor

The DSP56012 is a high-performance programmable digital signal processor (DSP) developed for

digital versatile disc (DVD), high-definition television (HDTV), and advanced set-top audio

decoding. The DSP56012 is optimized with audio-specific peripherals and customized memory

configuration, and may be programmed with Motorola’s certified software for Dolby AC-3 5.1

Channel Surround, Dolby Pro Logic, and MPEG1 Layer 2. These applications use Motorola’s 24-

bit DSP56000 architecture and are the highest quality solutions available. Flexible peripheral

modules and interface software allow simple connection to a wide variety of video/system

decoders. In addition, the DSP56012 offers switchable memory space configuration, a large user-

definable program ROM and two independent data RAMs and ROMs, a serial audio interface

(SAI), a serial host interface (SHI), a parallel host interface (HI) with Direct Memory Access

(DMA) for communicating with other processors, dedicated I/O lines, an on-chip phase-locked

™

loop (PLL), an On-Chip Emulation (OnCE ) port, and an on-chip digital audio transmitter

(DAX). Figure 1-1 shows the functional blocks of the DSP56012.

16-Bit Bus

24-Bit Bus

Parallel

Host

Interface

(HI)

General

Purpose

I/O

Serial

Host

Digital

Audio

X Data

Memory

Program

Memory

Y Data

Memory

Audio

Interface

(SAI)

Interface Transmitter

(SHI) (DAX)

(GPIO)

Expansion

Area

PAB

XAB

YAB

24-Bit

DSP56000

Core

Address

Generation

Unit

GDB

Internal

Data

Bus

PDB

XDB

YDB

Switch

OnCE Port

Data ALU

24 ¥ 24 + 56 Æ 56-Bit MAC

Two 56-Bit Accumulators

Program

Interrupt

Controller

Program

Decode

Program

Address

Clock

Controller

Generator

PLL

Gen.

Program Control Unit

EXTAL

AA1271

IRQA, IRQB, NMI, RESET

Figure 1-1. DSP56012 Block Diagram

For More Information On This Product,

Go to: www.freescale.com

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