SBA - Simple Bus Architecture

Project maintainers


Name: simple_bus_architecture
Created: Sep 4, 2012
Updated: Nov 23, 2018
SVN: Check description below for external links
Bugs: 1 reported / 0 solved
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Other project properties

Category:System on Chip
Development status:Stable
Additional info:FPGA proven
WishBone compliant: No
WishBone version: n/a
License: LGPL

Library Repository

You can download the official library repository from:


The Simple Bus Architecture (SBA) is an architecture made up software tools and intellectual property cores (IP Cores) interconnected by buses set through simple and clear rules, that allow the implementation of an embedded system (SoC); additionally, basic templates are provided to achieve a rapid design. Its structure gives it an inherent educative value. The VHDL code that implements this architecture is highly portable.

SBA Creator

The master core developed as special state machine, has the ability to perform basic data flow and processing, similar to microprocessor but without the high consumption of logic resources of it.

SBA Creator - Project

The SBA is an application and simplified version of the Wishbone specification. The SBA implements the minimum essential subset of Wishbone signals interface, and can be easily connected with simple Wishbone IP Cores. The SBA defines three types of cores: masters, slaves and auxiliaries. Several slaves IP Cores were developed following the SBA architecture, many of them to implement virtual instruments.

SBA Creator - Controller program