Datasheet

Pin Function Priority
MC68HC908QY/QT Family Data Sheet, Rev. 6
Freescale Semiconductor 23
1.6 Pin Function Priority
Table 1-3 is meant to resolve the priority if multiple functions are enabled on a single pin.
NOTE
Upon reset all pins come up as input ports regardless of the priority table.
Table 1-3. Function Priority in Shared Pins
Pin Name Highest-to-Lowest Priority Sequence
PTA0 AD0 → TCH0 → KBI0 → PTA0
PTA1 AD1 →TCH1 → KBI1 → PTA1
PTA2 IRQ
→ KBI2 → TCLK → PTA2
PTA3 RST
→ KBI3 → PTA3
PTA4 OSC2 → AD2 → KBI4 → PTA4
PTA5 OSC1 → AD3 → KBI5 → PTA5