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NS32FX164V-25 Datasheet

  • NS32FX164V-25

  • Advanced Imaging/Communication Signal Processors

  • 102頁

  • NSC

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NS32FX161-15 NS32FX161-20 NS32FX164-20 NS32FX164-25 NS32FV16-20 NS32FV16-25
Advanced Imaging Communication Signal Processors
February 1992
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
EP
TM
family of National鈥檚 Embedded System Processors
TM
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 specified otherwise any reference to the
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
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
TM
and Fax applications
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
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
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
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
Block Diagram
TL EE 11267 鈥?1
FIGURE 1-1 CPU Block Diagram
Series 32000 is a registered trademark of National Semiconductor Corporation
EP
TM
and Embedded System Processors
TM
are trademarks of National Semiconductor Corporation
Postscript
TM
is a trademark of Adobe Systems Inc
C
1995 National Semiconductor Corporation
TL EE11267
RRD-B30M115 Printed in U S A

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