EXTENDED FUNCTION TIMER (EFT)
EXTENDED FUNCTION TIMER (Cont’d)
– If an event occurs on ICAP1 again before the
Counter reaches the OC1R value, then the
Counter will be reset again and the pulse gener-
ated might be longer than expected as in Figure
99.
– If a write operation is performed on CLR or ACLR
register before the Counter reaches the OC1R
value, then the Counter will be reset again and
the pulse generated might be longer than expect-
ed.
Figure 99. One Pulse Mode Timing
....
FFFC FFFD FFFE
2ED0 2ED1 2ED2
2ED3
FFFC FFFD
COUNTER
ICAP1
OLVL2
OLVL1
OLVL2
OCMP1
compare1
Note: IEDG1=1, OC1R=2ED0h, OLVL1=0, OLVL2=1
....
2ED0 2ED1 2ED2
2ED3
FFFC FFFD
0010 FFFC
FFFC FFFD FFFE
COUNTER
ICAP1
OLVL2
OLVL2
OLVL1
OCMP1
compare1
Note: IEDG1=1, OC1R=2ED0h, OLVL1=0, OLVL2=1
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