MC68HC08JL3_05 Datasheet, PDF (38/198 Pages) Freescale Semiconductor, Inc – Microcontrollers

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.
Technical Data
38
MC68H(R)C08JL3 — Rev. 4.1
Freescale Semiconductor