MC96F6432June 22, 2018 Ver. 2.9 356.2 External Interrupt I/O PortPULL-UPREGISTER VDDVDDPADVDDOPEN DRAINREGISTERDATAREGISTERDIRECTIONREGISTERMUX01MUX10INTERRUPTENABLEEXTERNALINTERRUPTQ DCPrVDDFLAGCLEARPOLARITYREG.MUX10DEBOUNCEENABLEQ DCPr DEBOUNCECLKCMOS orSchmitt LevelInputANALOG CHANNELENABLEANALOG INPUTPORTx INPUT orSUB-FUNC DATA INPUTSUB-FUNC DIRECTIONSUB-FUNC ENABLESUB-FUNC DATA OUTPUTLevel Shift (ExtVDD to 1.8V)Level Shift (1.8V to ExtVDD)Figure 6.2 External Interrupt I/O Port