MESI Coherency InterSection Controller

Project maintainers


Name: mesi_isc
Created: Jan 2, 2013
Updated: Mar 17, 2013
SVN Updated: Jan 31, 2013
SVN: Browse
Latest version: download (might take a bit to start...)
Statistics: View
Bugs: 1 reported / 1 solved
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Other project properties

Category:Arithmetic core
Development status:Alpha
Additional info:
WishBone compliant: No
WishBone version: n/a
License: LGPL


The MESI InterSection Controller (ISC) is a coherence system controller. It supports the MESI coherence protocol for a cache data consistency. It synchronizes the memory requests of the system masters. It enables to keep the consistency of the data in the memory and in the local caches. This project provides the following elements:

  1. A synthesizable controller core with a complete environment of verification, synthesis, and documentation.
  2. Instructions for integrating MESI_ISC to a system.
  3. A definition and requirements of the system masters.
For a detailed description see the

MESI_ISC Specification (ver 0.12)

Project status:
  • Documentation: On progress. Main chapters have written.
  • RTL: Done.
  • Verification: On progress. A basic test plan has done.
  • Synthesis: On progress. Initial synthesis has passed successfully.

A schematic diagram of a coherency system with MESI_ISC:

Project's Environment Structure

The full environment of the project can be downloaded here. The following drawing describes the directories structure of the environment.