HC08KL8GRSSLASHD datasheet(57/256 Pages) NXP

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MC68HC08KL8 — Rev. 2.0

General Release Specification

Central Processor Unit (CPU)

General Release Specification — MC68HC08KL8

Section 6. Central Processor Unit (CPU)

6.1 Contents

6.2

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

6.3

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

6.4

CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

6.4.1

Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

6.4.2

Index Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

6.4.3

Stack Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

6.4.4

Program Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

6.4.5

Condition Code Register . . . . . . . . . . . . . . . . . . . . . . . . . . .63

6.5

Arithmetic/Logic Unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . .65

6.6

Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

6.7

Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

6.2 Introduction

This section describes the central processor unit (CPU). The M68HC08

CPU is an enhanced and fully object-code-compatible version of the

M68HC05 CPU. The

CPU08 Reference Manual (Motorola document

number CPU08RM/AD) contains a description of the CPU instruction

set, addressing modes, and architecture.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

HC08KL8GRS/D Datasheet(PDF) 57 Page - NXP Semiconductors