
Operation
38
Serial BERT 12.5 Gb/s User Guide
>
¯¯¯¯
Light indicates inverted PRBS generator
output:
•
OFF when PRBS bit stream is not
inverted;
• ON when PRBS bit stream is
inverted.
toggles the output inversion ON
Inverting the bit stream after training and
turning on the detector will result in a
BER measurement approaching 1E0.
>
Light indicates which data path
is
• Disabled: IN/IN¯¯ connected to
error detector, PRBS generator is
disabled;
• Enabled: IN/IN¯¯ connected to
error detector, PRBS generator is
enabled;
• Thru: IN/IN¯¯ connected to
DataThru/DataThru¯¯¯¯¯¯ with some
path loss, PRBS generator is
enabled;
Button cycles between the data path
options.
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