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Where should I connect the 'clock out' from the PLL in my Pic16f877a?

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pierre2030

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i use PLL for clock recovery.below is the circuit used for clock recovery.
-i wonder where i should connect the 'clock out' from the PLL in my Pic16f877a.
 

pierre2030

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Re: about PLL

i am using for clock recovery as the below:the PLL will be using in the second pic.i really don know which pin i should connect the output of PLL in the Pic16f877a.

thank u
best regard
Tea
 

throwaway18

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Re: about PLL

It depends how you are going to use the clock in your software.

If you want to read the pin as normal, such as with BTFSS and BTFSC then you can use any of the PIC IO pins.

If you are doing somthing clever in software you might need to use one of the pins that can generate an interrupt or increment one of the internal counters.
 

Davood Amerion

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about PLL

For this purpose, you can use any I/O pin of micro controller.
 

pierre2030

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Re: about PLL

-i will use the clock for my pic as the sample speed for the incoming data.
-so, if for this purpose, which pin i should connect?
-sorry, plz don mind if i ask the stupid question.............i am very new to PLL ....

thank u..
 

Davood Amerion

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about PLL

Pierre2030,
You can use any pins of PORTA or PORTB or PORTC.
Any of these pins can configured as input pin.

Regards,
Davood
 

ferrite

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Re: about PLL

i think possibly you need to consider the driving ability of your clock output from the PLL. if you are driving a small load, it will not be a problem. if it is a certain amount of load, i think a buffer will be needed
 

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