wei, Li

Simple Interruput Controller Core

## Description

In order to add a better Programmble Interrupt Controller(PIC), I read a the datasheet of Intel8259.I find some of the functions in Intel8259 may not be used in a normal design,so I write this basic PIC core.I will write documents to tell the user how to get a use of this simple but powerful Programmble Interrupt Controller core.

## Features

\- Eight-level priority controller.  
\- Individual request mask capability.  
\- Edge-triggered detection.  
\- Can be cascaded to allow more requests.  
\- Developed in Verilog-2001.  
\- WISHBONE interface commpitable.  
\- Very small and fast,using about 25 LES in 450MHZ in ALTERA cyclone device E- - --- EP16Q240-6.


<h2 id="description">Description</h2>
<p>In order to add a better Programmble Interrupt Controller(PIC), I read a the datasheet of Intel8259.I find some of the functions in Intel8259 may not be used in a normal design,so I write this basic PIC core.I will write documents to tell the user how to get a use of this simple but powerful Programmble Interrupt Controller core. </p>
<h2 id="features">Features</h2>
<p>- Eight-level priority controller.<br />
- Individual request mask capability. <br />
- Edge-triggered detection.<br />
- Can be cascaded to allow more requests. <br />
- Developed in Verilog-2001.<br />
- WISHBONE interface commpitable.<br />
- Very small and fast,using about 25 LES in 450MHZ in ALTERA cyclone device E- - --- EP16Q240-6.<br />
</p>


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Simple Interruput Controller Core

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