CS251 : CS251-PPT#2-W13.pdf
Document Summary
[with material from computer organization and design by patterson and hennessy, and digital design and. Computer architecture by harris and harris, both published by morgan kaufmann] Provides a path through which the electrical current can flow. An electric circuit that performs logical operations on input signals that carry discrete values signals that carry discrete values. Wires whose voltage represents a value of a discrete variable. Input: a, b, c; output: y, z; internal: n1. It is also a circuit with its own inputs, outputs, and specification. Elements in the example: e1, e2, e3. Describes the relationship between inputs and outputs. Timing specification: t th d l ifi. Specifies the delay between inputs change and output t h t d t. A circuit element that performs a basic logic function. Examples include: not, and, or, nand, nor, xor, nxor. Double input: and or nand nor xor nxor. Double input: and, or, nand, nor, xor, nxor.
