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Beep schematic in UM0884

Question asked by charles on Nov 5, 2010
I have received a lot of help in understanding the outputs and show to use an alternate output.  The beep schematic in UM0884 shous the IO as a souirce with the beeper connected to PD4 and the beeper going to ground.  The spec sheet for the processor shows PD4 as a high sink output.  That means I should connect the buzzer between VCC and PD4.  Any help?  Which do I go by?