ADDRESS	FUNCTION
E7H E6H E5H E4H	8255A Command (J2) 8255A Port-C Data (J2) 8255A Port-B Data (J2) 8255A Port-A Data (J2)
E3H E2H E1H E0H	8255A Command (J1) 8255A Port-C Data (J1) 8255A Port-B Data (J1) 8255A Port-A Data (J1)

PIN#	SIGNAL	PIN#	SIGNAL
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33	PA0 PA2 PA4 PA6 GND GND PB0 PB2 PB4 PB6 GND GND PC0 PC2 PC4 PC6 -	2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34	PA1 PA3 PA5 PA7 GND GND PB1 PB3 PB5 PB7 GND GND PC1 PC3 PC5 PC7 -