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Pipelined High Performance

8-bit Microcontroller

ver 4.02

OVERVIEW

DP80390 is an ultra high performance,

speed optimized

soft core of a single-chip 8-

bit embedded controller dedicated for opera-

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

chip) memories. It supports up to 8 MB of lin-

ear code and 16 MB of linear data spaces. The

core has been designed with a special concern

about performance to power consumption

ratio. This ratio is extended by an advanced

power management unit PMU.

DP80390 soft core is 100% binary-

compatible with the industry standard 80390 &

8051 8-bit microcontrollers. There are two con-

figurations of DP80390: Harward where inter-

nal data and program buses are separated,

and von Neumann with common program and

external data bus. DP80390 has Pipelined

RISC architecture 10 times faster compared

to standard architecture and executes 85-200

million instructions

per second. This per-

formance can also be exploited to great advan-

tage in low power applications where the core

can be clocked over ten times more slowly

than the original implementation for no per-

formance penalty.

DP80390 is delivered with fully auto-

mated testbench

and complete set of tests

allowing easy package validation at each stage

of SoC design flow.

CPU FEATURES

100% software compatible with industry

standard 80390 & 8051

LARGE mode – 8051 instruction set

FLAT mode – 80390 instruction set

Pipelined RISC architecture enables to

execute instructions 10 times faster com-

pared to standard 8051

24 times faster multiplication

12 times faster addition

Up to 256 bytes of internal (on-chip) Data

Memory

Up to 8M bytes of linear Program Memory

64 kB of internal (on-chip) Program Memory

8 MB external (off-chip) Program Memory

Up to 16M bytes of external (off-chip) Data

Memory

User programmable Program Memory Wait

States solution for wide range of memories

speed

User programmable External Data Memory

Wait States solution for wide range of

memories speed

De-multiplexed Address/Data bus to allow

easy connection to memory

Dedicated signal for Program Memory

writes.