portain.vhd

可编程逻辑接口8255并行接口芯片的vhdl描述

-- Altera Microperipheral Reference Design Version 0802
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--
--  FILE NAME   :   portain.vhd
--  PROJECT     :   Altera A8255 Peripheral Interface Adapter
--  PURPOSE     :   This file contains the entity and architecture 
--                  for the Port A Input Register of the A8255 design.
--
--Copyright