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// page no 420
// example no 14.2
// ADDRESS DETERMINATION OF GIVEN FIGURE
clc;
printf('To select the chip: \n \n');
printf('A15 A14 A13 A12 A11 \n');
printf(' 0 0 0 1 0 \n \n');
printf('A15,A14 Enable lines of 8205 \n');
printf('A13,A12,A11 Input logic to activate the putput line O4 of the 8205 \n \n');
printf('A15,A14,A13,A12,A11 = A7,A6,A5,A4,A3, = 2H \n \n');
printf('AD2 AD1 AD0 = Address Ports \n');
printf(' 0 0 0 = 20H Control or status register \n');
printf(' 0 0 1 = 21H Port A \n');
printf(' 0 1 0 = 22H Port B \n');
printf(' 0 1 1 = 23H Port C \n');
printf(' 1 0 0 = 24H Timer LSB \n');
printf(' 1 0 1 = 25H Timer MSB \n \n');
printf('Port numbers in given figure thus range from 20H-25H');
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