Verilog基础-- gate & switch 技术标签: Verilog在Verilog里面, 定义了如下几种gate/swich: 逻辑门 type 特征 说明 and N个输入, 一个输出 输出多个输入的and操作结果 nand N个输入, 一个输出 输出多个输入的and操作取反的结果 or N个输入, 一个输出 输出多个输入的or操作结果 nor N个输入, 一个输出 输出...
);//input:(not effect pad external input logic), output: DIN->PADassignPAD = OEN?'bz: DIN ;//'bz,高阻态//input:(PAD->DOUT)always@(*)beginif(OEN ==1)begin//inputDOUT = PAD ;endelsebeginDOUT ='bz;endend//use tristate gate in Verilog to realize pull up/down functionbufif1pull...
logic. This is becausea gated latch needs to update its outputs continuously when thegate is "...
(1) 8’hab 表示 8bit 的十六进制数，换算成二进制是 1010_1011；(2) 8’d171 表示 8bit 的十...
always语句中还可以使用if、case、for循环等语句，其功能更加强大。always语句块 assign语句和always语句的...
The next interesting structure is a transparent latch; it will pass the input to the output when the gate signal is set for “pass-through”, and captures the input and stores it upon transition of the gate signal to “hold”. The output will remain stable regardless of the input signal ...
20.Timing Analysis does not support the analysis of latches as synchronous elements for the currently selected device family 原因:用analyze_latches_as_synchronous_elements setting可以让 Quaruts II来分析同步锁存,但目前的器件不支持这个特性 措施:无须理会.时序分析可能将锁存器分析成回路.但并不一定分析正...
7. You are not charged extra fees for comments in your code.8. I am not paid for forum ...
半加器程序实例/* Gate-level description of a half adder */moduleHalfAdder_GL(A,B,Sum,Carry);...
57、ng to read if not coded with proper formatingSlide taken direct from Eric Hoffman门电平模型化门电平模型化q在在Verilog HDL语言中已预定义了门级原型语言中已预定义了门级原型 and n-input AND gate nand n-input NAND bate or n-input OR gate nor n-input NOR gate xor n-input exclusive OR...