DR8051 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – 8-bit RISC Microcontroller ver 2.00

DR8051
8-bit RISC Microcontroller
ver 2.00
OVERVIEW
DR8051 soft core is binary-compatible with
the industry standard 8051 8-bit microcon-
troller and can achieve a performance of up
to 55 million instructions per second in
today's integrated circuit technologies.
DR8051 has RISC architecture that is 6.7
time faster compare to the original imple-
mentation.
KEY FEATURES
♦ Software compatible with industry stan-
dard 8051
♦ RISC architecture
♦ 6.7 times faster than the original imple-
mentation
♦ 4-clk periods multiplication
♦ 5-clk periods division
♦ Up to 16M bytes of external standard
Data Memory
♦ Up to 256 bytes of internal dual port
Data Memory
♦ Up to 64K bytes of Program Memory
♦ User programmable RAMWE and
RAMRD pulses between 1 to 8 clock pe-
riods
♦ De-multiplexed Address/Data Bus to
allow easy connection to memory
♦ Over 16 times data transfer faster than
the original implementation
♦ Two 16-bit timer/counters
♦ Full-duplex serial port
♦ Support for External SFRs
♦ Fully synthesizable, static synchronous
design with no internal tri-states
♦ 1 GHz virtual clock frequency compare
to the original implementation (over 150
MHz in a typical 0.25u technological
process)
SPECIAL FEATURES
♦ I2C bus controller
♦ Floating-Point arithmetic coprocessor
IEEE-754 standard single precision
ü FADD, FSUB - addition, subtraction
ü FMUL, FDIV- multiplication, division
ü FSQRT- square root