PIC16F1933-ESLASHP datasheet(212/418 Pages) MICROCHIP

Part #	PIC16F1933-E/P

Description	28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology

PDF	418 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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212 / 418 page

PIC16F193X/LF193X

DS41364A-page 210

Preliminary

19.6.7.1

Steering Synchronization

The STRxSYNC bit of the PSTRxCON register gives

the user two selections of when the steering event will

happen. When the STRxSYNC bit is ‘0’, the steering

event will happen at the end of the instruction that

writes to the PSTRxCON 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 STRxSYNC 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 19-19 and 19-20 illustrate the timing diagrams

of the PWM steering depending on the STRXSYNC

setting.

FIGURE 19-19:

EXAMPLE OF STEERING EVENT AT END OF INSTRUCTION (STRXSYNC = 0)

FIGURE 19-20:

EXAMPLE OF STEERING EVENT AT BEGINNING OF INSTRUCTION

(STRXSYNC = 1)

PWM

P1n = PWM

STRx

P1<D:A>

PORT Data

PWM Period

PORT Data

PWM

PORT Data

P1n = PWM

STRx

P1<D:A>

PORT Data

PIC16F1933-E/P Datasheet(PDF) 212 Page - Microchip Technology