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Moore Machines

Moore Machines - Moore Machines Password Copyright 2009...

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Moore Machines Password_________________ © Copyright 2009 Daniel Tylavsky
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S J C K R Q Q A S J C K R Q Q B S J C K R Q Q C +5V +5V +5V +5V 0 1 0 1 Y 0 0 0 +5V Y Y Y TB TB QC' QA' QA' QA' QB' QB' Y' Y' TC QA QA QB QB QC The circuits we’ve looked at so far fall into the following general schematic: C.L. Output Combinational Logic Flip-Flop Array Clk Input Moore Machines
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The more traditional form for this schematic is: Combinational Logic Input Flip-Flop Array Combinational Logic Clock Output When the output is a function of the state but not the input, it’s called a Moore Machine . Lets look at a Moore Machine design that requires output logic. Moore Machines
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EX: 15¢ Vending Machine Design = Sensed Nickel No If 0 Sensed Nickel If 1 N(Nickel) = Sensed Dime No If 0 Sensed Dime If 1 D(Dime) Assumptions: Only N or D can be 1 during any one clock pulse. Campus Machine (i.e., it doesn’t give change.) Reset the machine on next clock pulse after vending.
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