NS32FX161-15 National, NS32FX161-15 Datasheet

NS32FX161-15

Manufacturer Part Number

NS32FX161-15

Description

Advanced Imaging/Communication Signal Processors

Manufacturer

National

Datasheet

1.NS32FX161-15.pdf (102 pages)

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C 1995 National Semiconductor Corporation

NS32FX161-15 NS32FX161-20 NS32FX164-20

NS32FX164-25 NS32FV16-20 NS32FV16-25

Advanced Imaging Communication Signal Processors

General Description

The NS32FX164 the NS32FV16 and the NS32FX161 are

high-performance 32-bit members of the Series 32000

specifically optimized for CCITT Group 2 and Group 3 Fac-

simile Applications Data Modems Voice Mail Systems La-

ser Printers or any combination of the above

Unless

NS32FX164 in this document applies to the NS32FV16 and

the NS32FX161 as well

The NS32FX164 can perform all the computations and con-

trol functions required for a stand-alone Fax system a PC

add-in Fax Voice Data Modem card or a Laser Fax sys-

tem

It also meets the performance requirements to implement

14400 9600 and 7200 bps modems complying with CCITT

V 17 V 29 and V 27 standards The NS32FV16 supports

V 29 and V 27 standards as well as voice The NS32FX161

supports V 29 and V 27 standards

The NS32FX164 provides a 16 Mbyte Linear external ad-

dress space and a 16-bit external data bus

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

Also integrated on-chip with the CPU are a DSP Module

(DSPM) and a 4K-byte RAM Array (2K in the NS32FV16 and

NS32FX161) The DSPM is a complete processing unit ca-

pable of autonomous operation parallel to the CPU core

operation The DSPM executes programs stored in an inter-

nal on-chip Random Access Memory (RAM) and manipu-

lates data stored either in the internal RAM or in an external

off-chip memory To maximize utilization of hardware re-

sources the DSPM contains a pipelined DSP-oriented data-

path and a control logic that implements a set of DSP vec-

tor commands

Block Diagram

Series 32000 is a registered trademark of National Semiconductor Corporation

Postscript

and Embedded System Processors

family of National’s Embedded System Processors

is a trademark of Adobe Systems Inc

specified

otherwise

are trademarks of National Semiconductor Corporation

TL EE11267

any

reference

FIGURE 1-1 CPU Block Diagram

the

The NS32FX164 capabilities can be expanded by using an

external floating point unit (FPU) which directly interfaces to

the NS32FX164 using the slave protocol The CPU-FPU

cluster features high speed execution of the floating-point

instructions

The NS32FX164 highly-efficient architecture combined with

the NS32CG16 graphics instructions and the high-perform-

ance vector operation capability makes the device the ideal

choice for Postscript

Features

Software compatible with the Series 32000 EP

processors

Designed around the CPU core of the NS32CG16

Pin compatible with the NS32FX16

32-bit architecture and implementation

On-chip DSP Module for high-speed DSP operations

Special support for graphics applications

4K-byte on-chip RAM array (2K in NS32FV16 and

NS32FX161)

On-chip clock generator

Floating-point support via the NS32081 or NS32181

Optimal interface to large memory arrays via the

NS32CG821 and the DP84xx family of DRAM

controllers

Power save mode

High-speed CMOS technology

68-pin PLCC package

18 graphics instructions

Binary compression expansion capability for font

storage using RLL encoding

Pattern magnification

Interface to an external BITBLT processing units for

fast color BITBLT operations

and Fax applications

TL EE 11267– 1

RRD-B30M115 Printed in U S A

February 1992

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