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PIC16F883-E/SO. 데이터시트(PDF) 152 Page - Microchip Technology

부품명 PIC16F883-E/SO.
상세설명  28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers
PDF  338 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F883-E/SO. 데이터시트(HTML) 152 Page - Microchip Technology

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PIC16F882/883/884/886/887
DS41291G-page 152
 2006-2012 Microchip Technology Inc.
11.6.7.1
Steering Synchronization
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.
Figures 11-20 and 11-21 illustrate the timing diagrams
of the PWM steering depending on the STRSYNC
setting.
FIGURE 11-20:
EXAMPLE OF STEERING EVENT AT END OF INSTRUCTION (STRSYNC = 0)
FIGURE 11-21:
EXAMPLE OF STEERING EVENT AT BEGINNING OF INSTRUCTION
(STRSYNC = 1)
PWM
P1n = PWM
STRn
P1<D:A>
PORT Data
PWM Period
PORT Data
PWM
PORT Data
P1n = PWM
STRn
P1<D:A>
PORT Data



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