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10-15
TIMER/COUNTER UNIT
Figure 10-14 and Figure 10-15 shows writing a new count. If the counter receives a gate-trigger
after writing a new count but before the end of the current half-cycle, the count is loaded on the
next CLKINn pulse and counting continues from the new count (Figure 10-14). Otherwise, the
new count is loaded at the end of the current half-cycle (Figure 10-15).
Figure 10-14. Mode 3 – Writing a New Count (With a Trigger)
Figure 10-15. Mode 3 – Writing a New Count (Without a Trigger)
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Writes to
Counter
n
CLKIN
n
GATE
n
OUT
n
Control
Word = 16H
Count
86
Count = 8
Count = 10
A2407-02
A2406-01
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Writes to
Counter
n
CLKIN
n
GATE
n
OUT
n
Control
Word = 16H
Count
42
Count = 4
Count = 8