Week 3

February 10, 2024

This week, I have built a program counter for my CPU.

Program Counter

The program counter does what it says, it counts. Specifically, the one I have built is a 4-bit binary counter. 4-bits for the 4-bits of memory locations we have in RAM.

This week had a quite a bit of theory, learning about master slave JK flip flops and how they work. They are chained together to form the counter we have built above. However, for simplicity’s sake, we just use a binary counter chip which does this for us. This was done in about an hour and a half.

Next week, I will be building the output register, which will be a normal register with a seven-segment display to show us the binary numbers in denary.

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