Electronics Engineering · Digital Electronics
A 4-bit universal shift register has mode control inputs S1S0 as follows: S1S0 = 00 : Hold S1S0 = 01 : Shift-Right S1S0 = 10 : Shift-Left S1S0 = 11 : Parallel-Load If the register content remains unchanged after a clock pulse, the mode must be:
- 101 - Shift-Right
- 200 - Hold✓
- 310 - Shift-Left
- 411 - Parallel-Load
Correct answer
00 - Hold
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