M68HC08 datasheet(68/288 Pages) FREESCALE

Part #	M68HC08

Description	Microcontrollers

PDF	288 Pages

Scroll/Zoom	100%

Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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68 / 288 page

Central Processor Unit (CPU)

Data Sheet

MC68HC908BD48 — Rev. 2.1

Central Processor Unit (CPU)

Freescale Semiconductor

6.3 Features

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Object code fully upward-compatible with M68HC05 Family

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16-bit stack pointer with stack manipulation instructions

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16-bit index register with x-register manipulation instructions

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8-MHz CPU internal bus frequency

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64-Kbyte program/data memory space

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16 addressing modes

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Memory-to-memory data moves without using accumulator

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Fast 8-bit by 8-bit multiply and 16-bit by 8-bit divide instructions

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Enhanced binary-coded decimal (BCD) data handling

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Modular architecture with expandable internal bus definition for

extension of addressing range beyond 64 Kbytes

•

Low-power stop and wait modes

6.4 CPU Registers

Figure 6-1 shows the five CPU registers. CPU registers are not part of

the memory map.

M68HC08 Datasheet(PDF) 68 Page - Freescale Semiconductor, Inc