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LPC55S69 : pin inversion and GINTx

Question asked by Eugene Hiihtaja on Nov 21, 2019
Latest reply on Nov 26, 2019 by Alexis Andalon

Hello !


Can pin be inverted first and after that contribute to GINTx group ?


For example Rising edge will be inverted to falling edge and after that is detected by GINTx ?

And wakeup capabilities from POWER DOWN mode is not degrade.


or pins connected to GINTx directly and  no inversion is possible :


The pins can be configured as GPIO pins through IOCON, but they don’t have to be. The
GINT block reads the input from the pin bypassing IOCON multiplexing. Make sure that no
analog function is selected on pins that are input to the group interrupts. Selecting an
analog function in IOCON disables the digital pad and the digital signal is tied to 0.