4 Bit BCD Counter Design using Microwind

CSUF Fall 2017

EECS 465

Project #4

Counter

You are to design a 4-bit BCD up/down counter. Depending upon the value of the up/down bit, the circuit follows one of the two count sequences.

0000-0001-0010-0011-0100-0101-0110-0111-1000-1001-000

Or

1001-1000-0111-0110-0101-0100-0011-0010-0001-0000-1001

There is no requirement for the starting value.

a. Design the circuit.

b. Obtain the layout.

c. Simulate the layout and plot each of the four outputs and the clock input for both cases; when the counter is counting up and when it is counting down.

Deadline: To be announced in class.