![]() ![]() SL SER means the same thing but the other way. SR SER stands for “shift-right serial input”, it’s the value going to be filled on the left side when it is shifted right. This register requires that CLR be wired to HIGH to prevent clearing the value stored in it. Because of limited space on my breadboard, I used wires directly wired to HIGH or LOW to load the register initially, the diagrams show switches however, both work just as well. For this example I will only being shifting the register to the right, as left shifting with the debounced switch for the clock signal was not giving a proper single clock edge to trigger on. This particular register can be shifted left or right, which makes it particularly useful for binary multiplication and division. A shift register is a type of storage register that holds the value of some binary sequence.
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