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D

U

Pipelined High Performance

8-bit Microcontroller

ver 3.10

OVERVIEW

DP80390CPU is an ultra high perform-

ance, speed 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 de-

signed with a special concern about perform-

ance to power consumption

ratio. This ratio

is extended by an advanced power manage-

ment unit PMU.

DP80390CPU soft core is 100% binary-

compatible with the industry standard 80390 &

8051 8-bit microcontroller. There are two con-

figurations of DP80390CPU: Harward where

internal data and program buses are sepa-

rated, and von Neumann with common pro-

gram and external data bus. DP80390CPU has

Pipelined RISC architecture 10 times faster

compared to standard architecture and exe-

cutes 85-200 million instructions per second.

This performance can also be exploited to

great advantage in low power applications

where the core can be clocked over ten times

more slowly than the original implementation

for no performance penalty.

DP80390CPU 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

○

LARGE mode – 8051 instruction set

○

FLAT mode – 80390 instruction set

execute instructions 10 times faster com-

pared to standard 8051

Memory

Memory

○

64 kB of internal (on-chip) Program Memory

○

16 MB external (off-chip) Program Memory

Memory

States solution for wide range of memories

speed

Wait States solution for wide range of

memories speed

easy connection to memory