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// page no 502
// example no 15.8
// INITIALIZATION INSTRUCTIONS FOR DMA
clc;
printf('MVI A,00000100B \n \n');
printf('A7 A6 A5 A4 A3 A2 A1 A0 \n');
printf('0 0 0 0 0 1 0 0 \n');
printf('A2=1 Disable DMA \n \n');
printf('OUT 08H \n');
printf('MVI A,00000111B \n \n');
printf('A7 A6 A5 A4 A3 A2 A1 A0 \n');
printf('0 0 0 0 0 1 1 1 \n');
printf('A7,A6=00 Demand mode \n');
printf('A5=0 Increment address \n');
printf('A4=0 Disable auto load \n');
printf('A3,A2=01 Write \n');
printf('A1,A0=11 Ch 3 \n \n');
printf('OUT 0BH \n'); // Send to mode reg.
printf('MVI A,75H \n'); // Low order byte of starting address
printf('OUT 06H \n'); // Output to CH3 memory address reg.
printf('MVI A,40H \n'); // High order byte of starting address
printf('OUT 06H \n'); // Output to CH3 memory address reg.
printf('MVI A,FFH \n'); // Low order byte of the count 03FFH
printf('OUT 07H \n'); // Output to CH3 count reg.
printf('MVI A,03H \n'); // High order byte of the count 03FFH
printf('OUT 07H \n'); // Output to CH3 count reg.
printf('MVI A,10000000B \n \n');
printf('A7 A6 A5 A4 A3 A2 A1 A0 \n');
printf('1 0 0 0 0 0 0 0 \n');
printf('A7,A6=10 DACK DREQ High \n');
printf('A5=0 Late write \n');
printf('A4=0 Fixed priority \n');
printf('A3=0 Normal time \n');
printf('A2=0 DMA enable \n')
printf('A0=0 Disable mem to mem \n \n');
printf('OUT 08H \n');
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