![]() ![]() Then this type of digital encoder is known commonly as a Priority Encoder or P-encoder for short. So if there is more than one input at logic level “1” at the same time, the actual output code would only correspond to the input with the highest designated priority. ![]() One simple way to overcome this problem is to “Prioritise” the level of each input pin. Also, an output code of all logic “0”s can be generated when all of its inputs are at “0” OR when input D 0 is equal to one. For example, if we make inputs D 1 and D 2 HIGH at logic “1” both at the same time, the resulting output is neither at “01” or at “10” but will be at “11” which is an output binary number that is different to the actual input present. One of the main disadvantages of standard digital encoders is that they can generate the wrong output code when there is more than one input present at logic level “1”. ![]()
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