MC68HC705C9A_1 Datasheet, PDF (41/157 Pages) Freescale Semiconductor, Inc – General Release Specification

Freescale Semiconductor, Inc.
General Release Specification — MC68HC705C9A
Section 3. Central Processing Unit
3.1 Contents
3.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
3.3 CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
3.3.1 Accumulator (A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
3.3.2 Index Register (X) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
3.3.3 Program Counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
3.3.4 Stack Pointer (SP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
3.3.5 Condition Code Register (CCR) . . . . . . . . . . . . . . . . . . . . .44
3.2 Introduction
This section contains the basic programmers model and the registers
contained in the CPU.
MC68HC705C9A — Rev. 2.0
Central Processing Unit
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