MC68HC05P9A Datasheet, PDF (28/158 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

CPU
Features
Introduction
Freescale Semiconductor, Inc.
• 2.1-MHz Bus Frequency
• 8-Bit Accumulator
• 8-Bit Index Register
• 13-Bit Program Counter
• 6-Bit Stack Pointer
• Condition Code Register with Five Status Flags
• 62 Instructions
• Eight Addressing Modes
• Power-Saving Stop and Wait Modes
The central processor unit (CPU) consists of a CPU control unit, an
arithmetic/logic unit (ALU), and five CPU registers. The CPU control unit
fetches and decodes instructions. The ALU executes the instructions.
The CPU registers contain data, addresses, and status bits that reflect
the results of CPU operations.
6-hc05cpu
28
CPU
MOTOROLA
For More Information On This Product,
Go to: www.freescale.com