2.1.1.1 AND Gate

To get a HIGH(1) output from an AND gate, all inputs must be HIGH(1). Looking at the truth table, only TRUTH[7] fulfills this requirement if all three inputs are used. This means that TRUTH[7] must be HIGH(1) and the rest must be LOW(0), giving the hex value 0x80 to put into the TRUTHn register.

Figure 2-3. AND Gate