Verilog/数电 知识点随记(4)

1、转载

编号 转载内容
1 详解ASIC设计流程
2 时钟抖动(Clock Jitter)和时钟偏斜(Clock Skew)
3 一位全加器的与非门实现
4 clock gating check

细节方面:
1、PLL与MMCM区别
2、FPGA内部资源总结
3、信号与系统公式和常用的连续傅里叶变换

2、常用逻辑表达式变换

A + A ⋅ B = A , A ⋅ ( A + B ) = A A+A\cdot B=A ,\quad A\cdot(A+B)=A A+AB=A,A(A+B)=A
A + A ‾ ⋅ B = A + B , A ⋅ ( A ‾ + B ) = A ⋅ B A+\overline{A}\cdot B=A+B ,\quad A\cdot(\overline{A}+B)=A\cdot B A+AB=A+B,A(A+B)=AB
A + B ⋅ C = ( A + B ) ⋅ ( A + C ) A+B \cdot C=(A+B)\cdot(A+C) A+BC=(A+B)(A+C)
A ⋅ B + A ‾ ⋅ C + B ⋅ C = A ⋅ B + A ‾ ⋅ C , ( A + B ) ⋅ ( A ‾ + C ) ⋅ ( B + C ) = ( A + B ) ⋅ ( A ‾ + C ) A\cdot B+\overline{A}\cdot C+B\cdot C=A\cdot B+\overline{A}\cdot C, \quad (A+B)\cdot (\overline{A}+C)\cdot (B+C)=(A+B)\cdot (\overline{A}+C) AB+AC+BC=AB+AC,(A+B)(A+C)(B+C)=(A+B)(A+C)
A ⋅ B ‾ = A ‾ + B ‾ , A + B ‾ = A ‾ ⋅ B ‾ \overline{A\cdot B}=\overline{A}+\overline{B}, \quad \overline{A+B}=\overline{A}\cdot \overline{B} AB=A+B,A+B=AB

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