MOD54415 CPU Reference Clock

[mike]

Can someone verify that the "EXTAL" input pin of the MCF54418 CPU on the MOD54415 board is driven by a 25 MHz clock ??
(XTAL would, therefore, be open or not connected.)

Would it be possible to know the accuracy of that clock (e.g. 25 ppm ??).

Please note that I am not referring to the "RTC_EXTAL" input.

If information like that is written down somewhere, please let me know where. I tried to look at all the documentation I could find and searched the forum. I only found one 'sideways' reference to the "EXTAL" input, hence my guess that it is 25 MHz.

Thank you.

[dciliske]

It is a 25 MHz clock. On the MOD54417 it is a 50MHz clock.

It's a 25 ppm XO.