This paper describes the design and implementation of a version of the 8051 microcontroller, one of the most commercially used microcontrollers in FPGA with reconfigurable instruction set.

Code for the 8051’s 8-bit Complex Instruction Set Architecture (CISC) can be smaller and more dense than that for today’s more popular Reduced Instruction Set Architecture (RISC) processors. This ...

A while back, [Matt] bought a few 8051 MCUs and tucked them away for a future project. He just found these fabulous little chips in a component drawer and decided it was time to figure these guys ...