MC68HC705JP7 Datasheet, PDF (45/242 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
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Section 3. Central Processor Unit (CPU)
3.1 Contents
3.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.3 Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.4 Index Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.5 Stack Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.6 Program Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.7 Condition Code Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
3.8 Arithmetic/Logic Unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . .50
3.2 Introduction
This section describes the central processor unit (CPU) registers.
Figure 3-1 shows the five CPU registers. CPU registers are not part of
the memory map.
MC68HC705JJ7 • MC68HC705JP7 — REV 4
MOTOROLA
Central Processor Unit (CPU)
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