Locating Signals
Description. This is the signal that produces Bursts of 100 ns wide log ic pulses every 6.6 ms. The pattern is a pseudorandom bit
sequence that repeats every 128 bursts and has a 6. 32 μs duration.
Frequent Anomaly
Board label. FREQ _ANOM
Connector grid location. C6, F 7
Description. There are two frequen tly occurring anomalies in this pulse train.
A half height runt signa l occurs approximately every 104.8 ms. Use a Runt trigger to isolate the signal.
A 50 ns (narrow) pulse appears approximately every 104.8 ms. Use a Pulse Width trigger t o isolate the signal.
The pulse train is a repeating group of three pulses. The three pulses are 100 ns, 200 ns, and 100 ns wide, with a 100 ns low
between. The group repea ts at a 1.6 μs rate.
The anoma ly is a group of four pulses. The four pulses are 100 ns, 50 ns (narrow), 100 ns (runt), and 100 ns wide, with a
100 ns low between, except for a 50 ns low before the runt.
Rare Anomaly
Boa
rd label.
RARE_ANOM
Connector grid location. C5, D7
Demo 2 Board Instruction Manua l 123
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