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BF54x - Is the drive strength dependent on which peripheral function is chosen?

Question asked by mated on Aug 30, 2010
Latest reply on Sep 7, 2010 by JoeT

Hi,

   Is the drive strength of a pin dependent on which peripheral function is chosen? Or is it strictly the driver type assigned to the pin?

 

   We are using ~ 2 Mhz signal from a CLK on a GPIO pin and would like to lower the rise time to lower / change the EMI radiated. We are observing 6-9 nS rise times (depending on actual circuit).

 

   From the Output Drive Currents and Typical Rise And Fall Times graphs, it would seem that changing the load capacitance is all that is required to modify the rise times but we want to ensure different peripheral functions will not affect the rise times as well.

 

                                         Thanx

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