Design, implement, simulate, and demonstrate a circuit that performs the

following:

$$ Counts from $059$ in seconds then rolls back to $0$ and repeats.

$$ Displays the output on two SSDs $(00-59).$ Note, you will need to use a

multiplexed output. See the previous assignment on how to multiplex

outputs

$$ Master clock MUST be set in Logisim to $128$ Hertz. All clock inputs must

be driven by this clock.

$$ You must be able to pause your circuit based on a push button switch $,$

then resume where it left off when the switch is released. The push button

switch is located in the Logisim Input$/$Output folder.

$$ You must use hierarchical blocks for at least the clock divider and main

timer circuits

$$ Your counters must reload with a $9$ for the low digit and a $5$ for the high

digit. $($your counter is not correct if it decodes a $10$ and $6$ for the low

and high digit respectively.

$$ See the following block diagrams for guidance

$$ Take screenshots of your main circuit and each of the subcircuits in your

hierarchy.

$$ While it may be difficult to view the SSDs in simulation mode, you should

be able to slow down the master clock rate to see each of the bits cycling

through its SSD to display the sequence. If this was downloaded to an

emulator board, and run at a higher clock rate, the digits would look

continuous $($our eyes would not see the fact that only one display is o