中断控制器a8259的子模块—中断请求寄存器的代码与仿真

The Sub-module of Interrupt Controller a8259-the Code and Simulation of the Interrupt Request Register IRR

基于中断控制器a8259的子模块—中断请求寄存器的工作原理编写了verilog HDL代码,给出了用modelsim5.7c软件仿真的波形,并对波形进行了分析,结果表明功能正确.该模块可移植性强,可以用在同类功能的其他系统中.

In this paper, code of verilog HDL is complied based on the principle of operation of which is the sub-module of Interrupt Controller a8259, the simulation waveform of the software of modelsim5.7c is given, and the waveform is analyzed. The result indicates the exactness of the function. The module can be transplanted easily so it can be used in some other systems with the same function.