High Performance 8051 Compatible CPU Core

The V805x is a synthesizable VHDL (soft) core design which is object code compatible with Intel's popular 8-bit 8051 microprocessor. The V805x is intended to be used in system-on-a-chip applications constructed using gate-arrays or standard cells. It should be especially interesting to designers who currently use 8051s in embedded control applications and want to integrate its functionality with other designs/peripherals/etc. onto a single chip (ASIC).

The V805x is a fully synchronous design and contains no microcode; all control is implemented via state machines. It is written in synthesizable VHDL using IEEE standard libraries. It uses a single clock.

The V805x is significantly faster than the original 8051. It can use a faster clock speed than the original and uses fewer clock cycles than the original. The V805x implements the 8051 CPU; you can configure the peripherals you need for your applications (add more ports, timers, peripherals, etc. to make a custom version for your design needs).

The design kit includes the synthesizable VHDL model, a sample synthesis script, a sample constraint file, a VHDL test bench, and test stimulus files.

VLSI Concepts can provide customization of the design, if requested.

Design and integration assistance is also available from VLSI Concepts.