MC68HC908AS60MFN MOTOROLA [Motorola, Inc], MC68HC908AS60MFN Datasheet - Page 62

• Manufacturer Part Number: MC68HC908AS60MFN
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

Random-Access Memory (RAM)
Technical Data
62
NOTE:
NOTE:
Before processing an interrupt, the central processor unit (CPU) uses
five bytes of the stack to save the contents of the CPU registers.
For M6805, M146805, and M68HC05 compatibility, the H register is not
stacked.
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.
Be careful when using nested subroutines. The CPU could overwrite
data in the RAM during a subroutine or during the interrupt stacking
operation.
Freescale Semiconductor, Inc.
For More Information On This Product,
Random-Access Memory (RAM)
Go to: www.freescale.com
MC68HC908AS60 — Rev. 1.0
MOTOROLA