FPGA台湾2.ppt

Digital Circuits
Text Book
M. M. Mano and C. R. Kime, “Logic puter Design Fundamentals," 3rd Ed., Pearson Prentice Hall, 2004.
Reference
class notes
Grade
quizzes: 15%
mid-term: % x 2
final: 30%
Course contents
Chapter 1-7
Finite State Machines
Verilog
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Digital age and information age
puters
general purposes
many scientific, industrial mercial applications
Digital systems
telephone switching exchanges
digital camera
electronic calculators, PDA's
digital TV
Discrete information-processing systems
manipulate discrete elements of information
Chapter 1: puters and Information
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Signal
An information variable represented by physical quantity
For digital systems, the variable takes on discrete values
Two level, or binary values are the most prevalent values 
Binary values are represented abstractly by:
digits 0 and 1
words (symbols) False (F) and True (T)
words (symbols) Low (L) and High (H)
and words On and Off.
Binary values are represented by values or ranges of values of physical quantities
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Signal Example – Physical Quantity: Voltage
Threshold Region
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Signal Examples Over Time
Analog
Asynchronous
Synchronous
Time
Continuous in value & time
Discrete in value & continuous in time
Discrete in value & time
Digital
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A puter Example
Synchronous or Asynchronous?
Inputs: Keyboard, mouse, modem, microphone
Outputs: CRT, LCD, modem, speakers
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Number Systems – Representation
Positive radix, positional number systems
A number with radix r is represented by a string of digits: An - 1An - 2 … A1A0 . A- 1 A- 2 … A- m + 1 A- m in which 0 £ Ai < r and . is the rad