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PIC16F690-I/SSSQTP Datasheet(PDF) 58 Page - Microchip Technology

Part # PIC16F690-I/SSSQTP
Description  20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
PDF  294 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16F690-I/SSSQTP Datasheet(HTML) 58 Page - Microchip Technology

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PIC16F631/677/685/687/689/690
DS41262D-page 56
© 2007 Microchip Technology Inc.
3.7.3
CHECKING TWO-SPEED CLOCK
STATUS
Checking the state of the OSTS bit of the OSCCON
register will confirm if the microcontroller is running
from the external clock source, as defined by the
FOSC<2:0> bits in the Configuration Word register
(CONFIG), or the internal oscillator.
FIGURE 3-7:
TWO-SPEED START-UP
0
1
1022 1023
PC + 1
TOST
T
HFINTOSC
OSC1
OSC2
Program Counter
System Clock
PC - N
PC



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