National Instruments SCXI-1320 User Manual page 87

Chapter 4 Register Descriptions
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SCXI-1121 User Manual
SCANCONEN Scan Control Enable—When set, this bit enables the
SCANCON lines. When clear, all SCANCON lines are
disabled (high).
CLKEN Clock Enable—When set, this bit enables TRIG0 as a
clock for the hardscan circuitry. When clear, TRIG0 is
disabled.
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