A priority encoder has four inputs I0, I1, I2, and I3 where I3 has the highest priority and I0 has the least priority. If the input is 0101, what will be the output?
Question
A priority encoder has four inputs I0, I1, I2, and I3 where I3 has the highest priority and I0 has the least priority. If the input is 0101, what will be the output?
Solution
A priority encoder works by checking the inputs in order of priority. The highest priority input is I3 and the lowest is I0. In this case, the input is 0101.
Step 1: Check the highest priority input (I3). If it is 1, then the output is the binary representation of that input's number. If it is 0, move to the next input.
In this case, I3 is 0, so we move to the next input.
Step 2: Check the next highest priority input (I2). If it is 1, then the output is the binary representation of that input's number. If it is 0, move to the next input.
In this case, I2 is 1, so the output is the binary representation of 2, which is 10.
So, the output for the input 0101 in a priority encoder is 10.
Similar Questions
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