CS61C 9: Intro to Synchronous Digital Systems (SDS), Logic

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Hardware Design through Boolean logic

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软件自上而下，硬件自下而上。

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MOS: Metal-Oxide on Semiconductor (半导体中的金属氧化物) C for complementary

"CMOS" refers to both a particular style of digital circuitry design and the family of processes used to implement that circuitry on integrated circuits (chips). CMOS circuitry dissipates less power than logic families with resistive loads. Since this advantage has increased and grown more important, CMOS processes and variants have come to dominate, thus the vast majority of modern integrated circuit manufacturing is on CMOS processes.

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总结

• 硬件设计：最基础组件-晶体管
• 四种不同的硬件表示形式
  • 高低电平表示 0 或 1
  • 逻辑门：与、或、非、NAND、NOR
  • 真值表
  • 布尔代数：逻辑门优化
• 状态机
  • 有限状态机
  • 由无状态的 combinational logic 和 有状态的 "Memory" Logic (aka Registers) 组成
  • 时钟周期同步一切