mc68hc908jl16 Freescale Semiconductor, Inc, mc68hc908jl16 Datasheet - Page 167
mc68hc908jl16
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mc68hc908jl16
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M68hc08 Microcontrollers
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Freescale Semiconductor, Inc
Datasheet
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Chapter 15
Central Processor Unit (CPU)
15.1 Introduction
The M68HC08 CPU (central processor unit) is an enhanced and fully object-code-compatible version of
the M68HC05 CPU. The CPU08 Reference Manual (document order number CPU08RM/AD) contains a
description of the CPU instruction set, addressing modes, and architecture.
15.2 Features
Features of the CPU include:
15.3 CPU Registers
Figure 15-1
Freescale Semiconductor
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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
shows the five CPU registers. CPU registers are not part of the memory map.
MC68HC908JL16 Data Sheet, Rev. 1.1
167
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