Heaviside function was proposed to create a precise arithmetic model of the threshold gate. The model can describe both the set and reset behavior of the threshold gate. 提出采用Heaviside函数建立可精确描述门限门行为的数学模型,该数学模型可描述门限门的置位、复位行为。
Chapter 3 principally analyses the key problems in the design of decoder, which includes RC oscillator, POR ( Power-on Reset), Schmitt trigger, data detect module, model control logic module and data output logic module, then gate simulation is completed by Verilog_XL tool. 本文第三章设计了解码芯片的部分电路模块,包括振荡器电路、上电复位电路、施密特触发器电路、数据检测模块、型号控制逻辑模块、按键防抖动模块以及数据输出逻辑模块。