4bit universal shift-storage register

universal 4-bit shift/storage register with serial in, serial out, parallel in, parallel out. The LED's indicate the parallel output. The Output at the bottom Q is serial out. Only one of the 4 bottom switches can be high at once for the logic to work! I couldn't make a 2-bit s0-s1 selector because of space and port limitations. Logic Switches: top left = Serial Input for down shift 4 Middle-left = Parallel input Bottom left = Serial input for up shift Top right = Clock pulse The 4 select switches at the bottom are (from left to right): 1 Hold 2 Shift Down 3 Shift up 4 Parallel Load Initially created to understand shift registers better myself (EE Student)

published 7 years ago