PIC16F684-I/SLG Microchip, PIC16F684-I/SLG Datasheet - Page 28

• Manufacturer Part Number: PIC16F684-I/SLG
• Description: pic, flash, Microcontrollers, Microprocessors, Semiconductors and Actives, ic, mcu
• Manufacturer: Microchip

PIC16F684
3.6.3
Checking the state of the OSTS bit (OSCCON<3>) will
confirm if the PIC16F684 is running from the external
clock source as defined by the FOSC bits in the
Configuration Word register (CONFIG) or the internal
oscillator.
FIGURE 3-7:
DS41202C-page 26
Program Counter
System Clock
INTOSC
CHECKING EXTERNAL/INTERNAL
CLOCK STATUS
OSC1
OSC2
Q1
TWO-SPEED START-UP
0
Q2
1
T
T
OST
Q3
1022 1023
PC
Q4
Preliminary
Q1
Q2
PC + 1
Q3
 2004 Microchip Technology Inc.
Q4
PC + 2
Q1