PIC16LF1454 Datasheet, PDF (297/418 Pages) Microchip Technology – 14/20-Pin Flash, 8-Bit USB Microcontrollers with XLP Technology

25.7 Falling Edge Dead Band
The falling edge dead band delays the turn-on of the
CWGxB output from when the CWGxA output is turned
off. The falling edge dead-band time starts when the
falling edge of the input source goes true. When this
happens, the CWGxA output is immediately turned off
and the falling edge dead-band delay time starts. When
the falling edge dead-band delay time is reached, the
CWGxB output is turned on.
The CWGxDBF register sets the duration of the dead-
band interval on the falling edge of the input source sig-
nal. This duration is from 0 to 64 counts of dead band.
Dead band is always counted off the edge on the input
source signal. A count of 0 (zero), indicates that no
dead band is present.
If the input source signal is not present long enough for
the count to complete, no output will be seen on the
respective output.
Refer to Figure 25-5 and Figure 25-6 for examples.
25.8 Dead-Band Uncertainty
When the rising and falling edges of the input source
trigger the dead-band counters, the input may be asyn-
chronous. This will create some uncertainty in the dead-
band time delay. The maximum uncertainty is equal to
one CWG clock period. Refer to Equation 25-1 for more
detail.
PIC16(L)F1454/5/9
 2012 Microchip Technology Inc.
Preliminary
DS41639A-page 297