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.

8-bit 8051-based µC has an 8-bit A/D converter, 14-segment LCD driver, 8-Kbyte flash memory, and 256 Mbytes of RAM; includes one channel each of SPWM and PWM, up to 36 I/Os, and three 16-bit timers; ...

Although 8051-compatible microcontrollers with SPI ports are available, a lower-cost device with an SPI port bit-banged through GPIO pins often suffices. The code shown here takes advantage of ...

Woodcliff Lake, NJ, January 28, 2014 -- An 8051-compatible microcontroller core with 26.85 times the performance per MHz of the original 8051 chip is now available from semiconductor intellectual ...