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NS32FX16-25 PDF预览

NS32FX16-25

更新时间： 2024-11-06 22:11:47
品牌 Logo 应用领域
美国国家半导体 - NSC /
页数 文件大小 规格书
88页 898K
描述
Imaging/Signal Processor

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NS32FX16-25 数据手册

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PRELIMINARY  
July 1991  
NS32FX16-15/NS32FX16-20/NS32FX16-25  
Imaging/Signal Processor  
General Description  
The NS32FX16 is a high-performance 32-bit member of the  
Series 32000/EPTM family of National’s Embedded System  
ProcessorsTM specifically optimized for CCITT Group 2 and  
Group 3 Facsimile Applications, Data Modems, Voice Mail  
Systems, Laser Printers, or any combination of the above.  
The NS32FX16 highly-efficient architecture combined with  
the NS32CG16 graphics instructions and the high-perform-  
ance vector operation capability, makes the device the ideal  
choice for PostscriptTM and Fax applications.  
Features  
Y
It can perform all the computations and control functions  
required for a stand-alone Fax system, a PC add-in Fax/  
Data Modem card or a Laser/Fax system.  
Software compatible with the Series 32000/EP  
processors  
Y
Designed around the CPU core of the NS32CG16  
It also meets the performance requirements to implement  
9600 and 7200 bps modems complying with CCITT V.29  
and V.27 standards.  
Y
32-bit architecture and implementation  
Y
On-chip DSP Module for high-speed DSP operations  
Y
The NS32FX16 provides a 16 Mbyte Linear external ad-  
dress space and a 16-bit external data bus.  
Special support for graphics applications  
Ð 18 graphics instructions  
Ð Binary compression/expansion capability for font  
storage using RLL encoding  
Ð Pattern magnification  
The CPU core, which is the same as that of the NS32CG16,  
incorporates a 32-bit ALU and instruction pipeline, and an  
8-byte prefetch queue.  
Ð Interface to an external BITBLT processing units for  
fast color BITBLT operations  
Also integrated on-chip with the CPU are a DSP Module and  
a 384-byte RAM Array. The DSP Module executes vector  
operations on complex variables and is specially designed  
to enhance performance in modem applications. The vector  
operations can also be used to efficiently implement FIR  
Filters and other DSP primitives. The on-chip RAM Array is  
used to store the coefficients of the various filters and can  
be accessed by both the CPU and the DSP Module.  
Y
384-byte on-chip RAM array  
Y
On-chip clock generator  
Y
Floating-point support via the NS32081 or NS32181  
Y
Optimal interface to large memory arrays via the  
NS32CG821 and the DP84xx family of DRAM control-  
lers  
Y
Power save mode  
The NS32FX16 capabilities can be expanded by using an  
external floating point unit (FPU) which directly interfaces to  
the NS32FX16 using the slave protocol. The CPU-FPU clus-  
ter features high speed execution of the floating-point in-  
structions.  
Y
High-speed CMOS technology  
Y
68-pin PLCC package  
Block Diagram  
TL/EE/10818–67  
Series 32000É is a registered trademark of National Semiconductor Corporation.  
EPTM and Embedded System ProcessorsTM are trademarks of National Semiconductor Corporation.  
C
1995 National Semiconductor Corporation  
TL/EE10818  
RRD-B30M115/Printed in U. S. A.  
1234567...88

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