ALE INTR PinConfiguration INTA IO/M SID AD 0 AD 0 AD 7 AD 1 AD 2 AD 3 AD 7 AD 5 AD 6 AD 4 Externally nitiated signalsi V CC 28 21 19 12 28 27 26 25 24 23 22 21 13 14 15 16 17 18 19 20 39 38 37 36 35 34 33 32 31 30 29 10 12 V SS 5 4 11 A 15 A 14 A 13 A 12 A 10 A 15 A 11 S 0 A 8 A 8 S 1 A 9 2 3 4 5 6 7 8 9 x 1 x 2