pic18f46k22 oscillator settings in configuration bits

[shreyas_patel21]

I am using pic18f46k22

my configurationbits settings are

#pragma config FOSC = INTIO67, FCMEN = OFF,IESO = OFF,PLLCFG = OFF	
#pragma config PWRTEN = ON, WDTEN = OFF,BOREN = OFF
#pragma config MCLRE = INTMCLR, HFOFST = ON
#pragma config LVP = OFF
#pragma config CP0=OFF, CP1=OFF,CP2=OFF, CP3=OFF, CPB=OFF, CPD=OFF
#pragma config WRTC=OFF, WRTB=OFF,WRTD=OFF
#pragma config EBTR0=OFF , EBTR1=OFF , EBTR2=OFF , EBTR3=OFF , EBTRB=OFF

OSCCONbits.IRCF0 =1; //HFINTOSC 16MHz with PLLEN
OSCCONbits.IRCF1 = 1;
OSCCONbits.IRCF2 = 1;
OSCTUNEbits.PLLEN = 1;

what is the Fosc(clock frequency) for this settings?



I think its 16Mhz settings but when I made calculation for timer the timer was working as 64Mhz clock

 

[shreyas_patel21]

I measured the clock it shows 16Mhz clock on its pin; but the timer configuration is working like if the clock is of 64Mhz.

still any suggestion or explaination regarding why this happened would be helpful to me.