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are trademarks of their respective owners.

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D

U

High Performance

8-bit Microcontroller

ver 3.10

OVERVIEW

DR80390CPU is a high performance,

area optimized

soft core of a single-chip 8-bit

embedded controller dedicated for operation

with fast (typically on-chip) and slow (off-chip)

memories

. The core has been designed with a

special concern about low power consump-

tion

. Additionally an advanced power man-

agement unit makes DR80390CPU core per-

fect for portable equipment

where low power

consumption is mandatory.

DR80390CPU soft core is 100% binary-

compatible with the industry standard 80C390

& 8051 8-bit microcontroller. There are two

configurations of DR80390CPU: Harward

where external data and program buses are

separated, and von Neumann with common

program and external data bus. DR80390CPU

has RISC architecture 6.7 times faster com-

pared to standard architecture and executes

65-200 million instructions

per second. This

performance can also be exploited to great

advantage in low power applications where

the core can be clocked up to seven times

more slowly than the original implementation

for no performance penalty.

DR80390CPU is delivered with fully

automated testbench

and complete set of

tests

allowing easy package validation at each

stage of SoC design flow.

CPU FEATURES

standard 80390 & 8051

structions 6.7 times faster compared to

standard 8051

Memory

Memory

Memory

States solution for wide range of memories

speed

Wait States solution for wide range of

memories speed

easy connection to memory

Registers