Microcontrollers Data Sheet

Advance Information MC68HC(7)08KH12 — Rev. 1.1
46 Freescale Semiconductor
During a subroutine call, the CPU uses two bytes of the stack to store
the return address. The stack pointer decrements during pushes and
increments during pulls.
NOTE: Be careful when using nested subroutines. The CPU may overwrite data
in the RAM during a subroutine or during the interrupt stacking
operation.