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DSP56156ROM

更新时间： 2024-11-26 22:21:11
品牌 Logo 应用领域
摩托罗拉 - MOTOROLA 数字信号处理器
页数 文件大小 规格书
76页 1020K
描述
16-bit Digital Signal Processor

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中文翻译

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DSP56156ROM 数据手册

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Order this document  
by DSP56156/D  
REV 1  
Freescale Semiconductor, Inc.  
MOTOROLA  
SEMICONDUCTOR  
TECHNICAL DATA  
DSP56156  
DSP56156ROM  
Advance Information  
16-bit Digital Signal Processor  
The DSP56156 is a general-purpose MPU-style Digital Signal Processor (DSP). On a single semi-  
conductor chip, the DSP56156 comprises a very efficient 16-bit digital signal processing core, pro-  
gram and data memories, a number of peripherals, and system support circuitry. Unique features  
of the DSP56156 include a built-in sigma-delta (²ý) codec and phase-locked loop (PLL). This com-  
bination of features makes the DSP56156 a cost-effective, high-performance solution for many DSP  
applications, especially speech coding, digital communications, and cellular base stations.  
The central processing unit of the DSP56156 is the DSP56100 core processor. Like all DSP56100-  
based DSPs, the DSP56156 consists of three execution units operating in parallel, allowing up to  
six operations to be performed during each instruction cycle. This parallelism greatly increases the  
effective processing speed of the DSP56156. The MPU-style programming model and instruction  
set allow straightforward generation of efficient, compact code. The basic architectures and devel-  
opment tools of Motorola's 16-bit, 24-bit, and 32-bit DSPs are so similar that understanding how to  
design and program one greatly reduces the time needed to learn the others.  
On-Chip Emulation (OnCETM port) circuitry provides convenient and inexpensive debug facil-  
ities normally available only through expensive external hardware. Development costs are re-  
duced and in-field testing is greatly simplified using the OnCETM port. Figure 1 illustrates the  
DSP56156 in detail.  
16-bit Bus  
7
2
5
5
15  
Sigma-  
Delta  
16-bit  
Sync.  
Sync.  
Host  
Program  
Data  
Timer/  
Event  
Serial  
(SSI)  
or I/O  
Serial Interface  
Memory *  
Memory  
Codec  
(SSI)  
(HI)  
2048 × 16 RAM 2048 × 16 RAM  
Counter  
or I/O  
or I/O  
64 × 16 ROM  
(boot)  
External  
Address  
Bus  
PAB  
16-bit  
Address  
16  
Address  
XAB1  
XAB2  
Generation  
Unit  
56100 DSP  
Core  
Switch  
GDB  
PDB  
XDB  
Internal  
Data  
External  
Data  
Data  
16  
Bus  
Bus  
Switch  
Switch  
OnCE™ Port  
Clock  
Control  
9
Program  
Decode  
Program  
Data ALU  
16 x 16 + 40 —> 40-bit MAC  
Two 40-bit Accumulators  
Interrupt  
Control  
Bus  
Address  
Controller  
Generator  
Control  
PLL  
Gen.  
Program Control Unit  
3
4
IRQ  
2
* 12 k x 16 ROM replaces the program RAM on the DSP56156ROM  
Figure 1 DSP56156 Block Diagram  
Specifications and information herein are subject to change without notice.  
OnCE is a trademark of Motorola, Inc.  
MOTOROLA INC., 1994  
For More Information On This Product,  
Go to: www.freescale.com  
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