PIC18F-LF1XK50 MICROCHIP [Microchip Technology], PIC18F-LF1XK50 Datasheet - Page 136
PIC18F-LF1XK50
Manufacturer Part Number
PIC18F-LF1XK50
Description
20-Pin USB Flash Microcontrollers
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC18F-LF1XK50.pdf
(420 pages)
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PIC18F/LF1XK50
14.4.7.1
The STRSYNC bit of the PSTRCON register gives the
user two selections of when the steering event will
happen. When the STRSYNC bit is ‘0’, the steering
event will happen at the end of the instruction that
writes to the PSTRCON register. In this case, the
output signal at the P1<D:A> pins may be an
incomplete PWM waveform. This operation is useful
when the user firmware needs to immediately remove
a PWM signal from the pin.
When the STRSYNC bit is ‘1’, the effective steering
update will happen at the beginning of the next PWM
period. In this case, steering on/off the PWM output will
always produce a complete PWM waveform.
FIGURE 14-17:
FIGURE 14-18:
DS41350E-page 136
P1<D:A>
P1<D:A>
STRn
PWM
STRn
PWM
Steering Synchronization
PORT Data
EXAMPLE OF STEERING EVENT AT END OF INSTRUCTION (STRSYNC = 0)
EXAMPLE OF STEERING EVENT AT BEGINNING OF INSTRUCTION
(STRSYNC = 1)
PWM Period
PORT Data
Preliminary
P1n = PWM
Figures
of the PWM steering depending on the STRSYNC
setting.
P1n = PWM
14-17
and
PORT Data
14-18
2010 Microchip Technology Inc.
illustrate the timing diagrams
PORT Data
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