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8255/8255A-like programmable peripheral interface written in SystemVerilog

License: MIT License

SystemVerilog 99.43% Tcl 0.57%

8255 8255a ppi systemverilog programmable-peripheral-interface fpga pc

kf8255's Introduction

KF8255 - 8255-like programmable peripheral interface written in SystemVerilog

About

KF8255 is programmable peripheral interface like 8255/8255A.

Differences from original

Clock synchronization
I/O ports is separated into input and output port

Features

3 I/O (Port A, PortB, Port C)
Mode 0: Basic Input/Output
Mode 1: Storobed Input/Output
Mode 2: Bi-Directional Bus

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