5-1 门级建模 VerilogHDL内建基元门: 多输入门:and, nand, or, nor, xor, xnor; 多输出门:buf, not 三态门:bufif0, bufif1, notif0, notif1; 上拉.下拉门:pullup, pulldown; MOS开关:cmos, nmos, pmos, rcmos, rnmos, rpmmos; 双向开关:tran, tranif0, tranif1, rtran, rtranif0, rtranif1; 示例1:2-4译码器…