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TL/EE/5234
NS32081-10/NS32081-15
Floating-Point
Units
July 1988
NS32081-10/NS32081-15 Floating-Point Units
General Description
The NS32081 Floating-Point Unit functions as a slave proc-
essor in National Semiconductor’s Series 32000
É
micro-
processor family. It provides a high-speed floating-point in-
struction set for any Series 32000 family CPU, while remain-
ing architecturally consistent with the full two-address archi-
tecture and powerful addressing modes of the Series 32000
micro-processor family.
Features
Y
Eight on-chip data registers
Y
32-bit and 64-bit operations
Y
Supports proposed IEEE standard for binary floating-
point arithmetic, Task P754
Y
Directly
compatible
with
NS32016,
NS32008
and
NS32032 CPUs
Y
High-speed XMOS
TM
technology
Y
Single 5V supply
Y
24-pin dual in-line package
Block Diagram
TL/EE/5234 – 1
TRI-STATE
É
and Series 32000
É
are registered trademarks of National Semiconductor Corp.
XMOS
TM
is a trademark of National Semiconductor Corp.
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.