Datasheet > DSP56012PB

DSP56012PB

更新时间： 2024-11-01 23:49:15

品牌	Logo	应用领域
其他 - ETC		数字信号处理器 DVD
页数	文件大小	规格书
4页	215K
描述
DSP56012 24-Bit DVD Digital Signal Processor Product Preview

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DSP56012PB 数据手册

Freescale Semiconductor, Inc.

MOTOROLA

DSP56012P/D

(Motorola Order Number)

Rev. 0, 09/98

Semiconductor Product Information

Product Preview

DSP56012 24-Bit DVD Digital Signal Processor

Motorola developed the DSP56012 as a high-performance programmable digital signal processor

(DSP) 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, two independent data RAMs and ROMs, a serial audio

interface (SAI), Serial host interface (SHI), parallel host interface (HI) with Direct Memory

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

™

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

(DAX). Figure 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)

(GPIO)

(DAX)

Expansion

Area

PAB

XAB

YAB

24-Bit

DSP56000

Core

Address

Generation

Unit

GDB

PDB

XDB

YDB

Internal

Data

Bus

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 DSP56012 Block Diagram

This document contains information on a new product. Specifications and information

herein are subject to change without notice.

For More Information On This Product,

Go to: www.freescale.com

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