MC68HC08AZ0 Datasheet, PDF (38/444 Pages) Motorola, Inc – Advance Information

RAM
Freescale Semiconductor, Inc.
During a subroutine call, the CPU uses 2 bytes of the stack to store the
return address. The stack pointer decrements during pushes and
increments during pulls.
NOTE:
Care should be taken when using nested subroutines. The CPU may
overwrite data in the RAM during a subroutine or during the interrupt
stacking operation.
MC68HC08AZ0
36
RAM
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2-ram
MOTOROLA