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ZPD Diagnostic Memory Latencies

A tick which is recorded at address 0x4000 of the input diagnostic memory will be found in the following locations in the rest of the diagnostic memories when recorded. N.B.: this is different from the total ZPD latency (2.1 μs = ~7.8 clk4 ticks); it is just the latencies between various diagnostic memories (e.g. it doesn’t include the time for the data to arrive in the ZPD and get into the input segment memory).

Diagnostic Memory Tick start address Latency in clk4 units
Input Segments 0x4000 0
MegaBus Segments 0x4000 0
Finder Results 0x1060 3
Fitter Results 0x4024 4.5
Fitter Results in Decision Module 0x4024 4.5
Decisions 0x3005 5