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PSoC 4

Anonymous
Not applicable

I am PSoC4 beginner, so I am a little confusing about ECO. When I read PSoC4 datasheet and it explain XTAL24I can input 24-MHz crystal or external clock input. But a diagram in the datasheet show crystal is only connected at XTAL24I pin. Therefore, I suspect if I can input external clock signal into XTAL24I pin.

   

Please tell me whether I  can connect external clock signal into XTAL24I pin or not.

   

Thank you.

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3 Replies
ETRO_SSN583
Esteemed Contributor

From the TRM (see attached) -

   

Regards, Dana.

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Anonymous
Not applicable

Thank you.

   

I understand external clock is provided from a designated PSoC4 pin. I think the designated pins is one of  P0.4, P2.7, P5.1 in CY8C4247LQI-BL483. So I can not use XTRAL24I.

   

Is it right?

   

Best regards,

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ETRO_SSN583
Esteemed Contributor

In the datasheet is a pinout table, and it looks like XTAL24I (pin 16, 24 Mhz) or XTAL32I/P6.1

   

(pin 3, 32 Khz) is used when external clock is selected in the clock editor. QFN.

   

 

   

Regards, Dana.
 

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