jeff schoenhals

Question regarding using TPM channel for the TPM external clock input

Discussion created by jeff schoenhals on May 16, 2012
Latest reply on May 17, 2012 by bigmac

I am working with MC9S08SG32 part.


The spec indicates that you can utilize a TPM channel as the input for the TPM external clock signal. 


This part allows TPM channels to be routed to different pins.  In the case of TPM1C0, it may be routed to either PTC0 or PTA0.

If I configure TPM1C0 to use PTC0 and use TPM1C0 for the external clock, will the external clock signal also be present on the alternate pin for this channel (PTA0)?  I ran the test and it looks like it is present on both pins.  Is there any method to restrict the signal to a single pin?