MC68HC08AZ16 Datasheet, PDF (61/527 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Central Processor Unit (CPU)
Arithmetic/logic unit (ALU)
The ALU performs the arithmetic and logic operations defined by the
instruction set.
Refer to the CPU08 Reference Manual (Motorola document number
CPU08RM/AD) for a description of the instructions and addressing
modes and more detail about CPU architecture.
CPU during break interrupts
If the break module is enabled, a break interrupt causes the CPU to
execute the software interrupt instruction (SWI) at the completion of the
current CPU instruction. See Break Module on page 129. The program
counter vectors to $FFFC–$FFFD ($FEFC–$FEFD in monitor mode).
A return from interrupt instruction (RTI) in the break routine ends the
break interrupt and returns the MCU to normal operation if the break
interrupt has been deasserted.
MC68HC08AZ32
60
Central Processor Unit (CPU)
8-cpu
MOTOROLA