Lexmark X7500 - MFP - Option Service Manual page 151

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