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A. Link pin 26 (IC12 PIO-3) to C12 to C9 to C11 to C8.
B. Link C12 to C9 to C11 to pin 11 IC8 (PIO-0) to C8.
Address selection connection:
C. Link pin 5 of IC8 (PIO-0) and pin 17 of IC4.
D. Link pin 6 of IC8 (PIO-0) and pin 18 of IC4.