(c) An XY flip-flop operates as follows. Determine the excitation table for the XY flip- flop by completing Table 1. If XY = 00, next state of flip-flop is 1 If XY = 01, next state of flip-flop is the complement for present state If XY = 10, next state of flip-flop is the same as present state If XY = 11, next state of flip-flop is 0 (Table 1) Present State Next State X Y On+1

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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(c)
An XY flip-flop operates as follows. Determine the excitation table for the XY flip-
flop by completing Table 1.
If XY = 00, next state of flip-flop is 1
If XY = 01, next state of flip-flop is the complement for present state
If XY = 10, next state of flip-flop is the same as present state
If XY = 11, next state of flip-flop is 0
(Table 1)
Present State Next State
Qn+1
Y
Qn
1
A client has approached you to design a controller for a simple elevator in his
warehouse, which has two floors. The elevator can be at any one of the two
floors: Ground or First and is controlled by one button that has two values: Up
(1) or Down (0).
(d)
There are two lights in the elevator that indicate the current floor: Red for
Ground, and Green for First. At each clock cycle, the controller will check the
current input and current floor and will change the lights and floors as required by
the user. Develop the state diagram and design the controller using the XY flip-
flop in Question ().
Transcribed Image Text:(c) An XY flip-flop operates as follows. Determine the excitation table for the XY flip- flop by completing Table 1. If XY = 00, next state of flip-flop is 1 If XY = 01, next state of flip-flop is the complement for present state If XY = 10, next state of flip-flop is the same as present state If XY = 11, next state of flip-flop is 0 (Table 1) Present State Next State Qn+1 Y Qn 1 A client has approached you to design a controller for a simple elevator in his warehouse, which has two floors. The elevator can be at any one of the two floors: Ground or First and is controlled by one button that has two values: Up (1) or Down (0). (d) There are two lights in the elevator that indicate the current floor: Red for Ground, and Green for First. At each clock cycle, the controller will check the current input and current floor and will change the lights and floors as required by the user. Develop the state diagram and design the controller using the XY flip- flop in Question ().
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