Lexmark X7500 Service Manual - Page 151

4036-501 Signal name D0 D1 D2 D3 D4 D5 D6 D7 A0 MROMCS CRKITCS FLASHATC RD WR CRKTINT A1 A2 A3 A4 A5 A6 A7 Description CPU data bus 0 CPU data bus 1 CPU data bus 2 CPU data bus 3 CPU data bus 4 CPU data bus 5 CPU data bus 6 CPU data bus 7 CPU address bus 0 ROM chip selection Creation kit chip selection Flash ROM attachment signal Read signal from the CPU Write signal from the CPU Interruption signal to the creation kit CPU address bus 1 CPU address bus 2 CPU address bus 3 CPU address bus 4 CPU address bus 5 CPU address bus 6 CPU address bus 7 Connector Locations 5-25