The synchronous 8051 microcontroller is a common processor found in many embedded systems. By using asynchronous design techniques, the performance of the 8051 microcontroller is increased. Through simulation and the use of existing synchronous design tools in the asynchronous design flow, a four-phase handshaking approach with a stoppable clock is simulated and then implemented. The asynchronous architecture added to the existing synchronous architecture includes an ALU wrapper, a controller wrapper, and a clocking element. The asynchronous design flow consists of functional simulation, synthesis of synchronous blocks, timing analysis, asynchronous wrapper design, and timing simulation. After implementation analysis, the asynchronous 8051 is 28.7 faster then the synchronous 8051 while only using 10 more area.

i8051_all.vhd
i8051_alu.vhd
i8051_ctr.vhd
i8051_dbg.vhd
i8051_dec.vhd
i8051_lib.vhd
i8051_ram.vhd
i8051_report.pdf
i8051_rom.vhd
i8051_tsb.vhd
i8051_xrm.vhd

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