MC68HC05P9ACDW FREESCALE [Freescale Semiconductor, Inc], MC68HC05P9ACDW Datasheet - Page 30

• Manufacturer Part Number: MC68HC05P9ACDW
• Description: HCMOS Microcontroller Unit
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

CPU
CPU Control Unit
Arithmetic/Logic Unit
CPU Registers
30
The CPU control unit fetches and decodes instructions during program
operation. The control unit selects the memory locations to read and
write and coordinates the timing of all CPU operations.
The arithmetic/logic unit (ALU) performs the arithmetic, logic, and
manipulation operations decoded from the instruction set by the CPU
control unit. The ALU produces the results called for by the program and
sets or clears status and control bits in the condition code register
(CCR).
The M68HC05 CPU contains five registers that control and monitor MCU
operation:
CPU registers are not memory mapped.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Accumulator
Index register
Stack pointer
Program counter
Condition code register
Go to: www.freescale.com
CPU
MOTOROLA
8-hc05cpu