Digital Electronics - Shift Registers - Discussion
Discussion Forum : Shift Registers - General Questions (Q.No. 31)
31.
A bidirectional 4-bit shift register is storing the nibble 1110. Its 
input is LOW. The nibble 0111 is waiting to be entered on the serial data-input line. After two clock pulses, the shift register is storing ________.
input is LOW. The nibble 0111 is waiting to be entered on the serial data-input line. After two clock pulses, the shift register is storing ________.Discussion:
2 comments Page 1 of 1.
Divya said:
3 years ago
Yes, it's correct. Every time We need to check about the right shift or left shift.
So here Right/Left' is Low. So we need to perform Left Operation.
So here Right/Left' is Low. So we need to perform Left Operation.
Yaso said:
1 decade ago
Stored nibble : waitin nibble.
Initially 1110 : 0111.
1st pulse 1100 : 111.
2nd pulse 1001 : 11.
The final answer after 2nd clk pulse is 1001.
Initially 1110 : 0111.
1st pulse 1100 : 111.
2nd pulse 1001 : 11.
The final answer after 2nd clk pulse is 1001.
(1)
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