State diagram for reversible mod-4-counter

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SUMMARY

The discussion focuses on creating a state diagram for a reversible mod-4-counter, which allows counting both up and down. Participants clarify that "reversible" refers to the ability to count in both directions, confirming that the signals 00, 10, and 01 correspond to standing still, counting up, and counting down, respectively. An attempt at a solution was shared, illustrating the state transitions visually. The consensus is that the initial understanding of the reversible mod-4-counter is correct.

PREREQUISITES
  • Understanding of state diagrams in digital logic design
  • Familiarity with reversible counters and their operation
  • Basic knowledge of binary signal representation
  • Experience with digital circuit design tools
NEXT STEPS
  • Research how to implement a reversible mod-4-counter using VHDL
  • Learn about state transition diagrams and their applications in digital systems
  • Explore the design of up/down counters in FPGA environments
  • Study the principles of digital logic design for reversible computing
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Digital circuit designers, electrical engineers, and students studying digital logic who are interested in reversible counter designs and state diagram implementations.

ogward
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1. Draw a state diagram for a reversible mod‐4‐counter with the following in signals.
00=stand still in the current statement
10=count up.
01=count down.
:

2. The attempt at a solution
My first problem is that I'm a bit confused about what "reversible mod-4-counter" means.
Do they mean reversible because you can count both up and down or do they mean something else?

this is my attempt.
http://img4.imageshack.us/img4/3800/20111009002.th.jpg
 
Last edited by a moderator:
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Reversible means up/down counter. Looks like you got it right.
 

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