DP80390CPU
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.
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CPU FEATURES
100% software compatible with industry
standard 80390 & 8051
LARGE mode – 8051 instruction set
FLAT mode – 80390 instruction set
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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 16M bytes of linear Program
Memory
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64 kB of internal (on-chip) Program Memory
16 MB external (off-chip) Program Memory
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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
http://www.DigitalCoreDesign.com
http://www.dcd.pl
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are trademarks of their respective owners.
Copyright 1999-2003 DCD – Digital Core Design. All Rights Reserved.
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