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MC68HC908LJ12 Datasheet, PDF (77/413 Pages) Freescale Semiconductor, Inc – 8-bit microcontroller units | |||
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Central Processor Unit (CPU)
6.2 Introduction
The M68HC08 CPU (central processor unit) is an enhanced and fully
object-code-compatible version of the M68HC05 CPU. The CPU08
Reference Manual (Freescale document order number CPU08RM/AD)
contains a description of the CPU instruction set, addressing modes,
and architecture.
6.3 Features
Feature of the CPU include:
⢠Object code fully upward-compatible with M68HC05 Family
⢠16-bit stack pointer with stack manipulation instructions
⢠16-Bit index register with X-register manipulation instructions
⢠8-MHz CPU internal bus frequency
⢠64-Kbyte program/data memory space
⢠16 addressing modes
⢠Memory-to-memory data moves without using accumulator
⢠Fast 8-bit by 8-bit multiply and 16-bit by 8-bit divide instructions
⢠Enhanced binary-coded decimal (BCD) data handling
⢠Modular architecture with expandable internal bus definition for
extension of addressing range beyond 64-Kbytes
⢠Low-power stop and wait modes
Technical Data
78
Central Processor Unit (CPU)
MC68HC908LJ12 â Rev. 2.1
Freescale Semiconductor
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