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Source code

Details

Name: wb_mcs51
Created: Mar 3, 2008
Updated: Jul 25, 2008
SVN Updated: Mar 10, 2009

Other project properties

Category: Other
Language: Verilog
Development status: Stable
Additional info: Design done , FPGA proven
WishBone Compliant: Yes
License:

Description

Interface an 8051-compatible microcontroller with the Wishbone bus.

Features

- Multiplexed 8051 address/data bus to Wishbone Master
- Very simple, very small.
- Since 8051 has no way to add additional wait-states via an external pin, the Wishbone must be fast enough to complete the cycle in time for the 8051.

Status

- Tested with Silicon Labs C8051 Microcontroller and Xilinx Coolrunner2 CPLD.
- Tested with Silicon Labs C8051 Microcontroller and Xilinx Spartan3 FPGA.
- this core is used in the Altair32 Front Panel: www.altair32.com