MC68HC708AS48 FREESCALE [Freescale Semiconductor, Inc], MC68HC708AS48 Datasheet - Page 79

• Manufacturer Part Number: MC68HC708AS48
• Description: Advance Information
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

7.1 Contents
7.2 Introduction
MC68HC708AS48
MOTOROLA
Advance Information — MC68HC708AS48
—
Rev. 4.0
7.2
7.3
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.5
7.6
7.7
7.8
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.
Section 7. Central Processor Unit (CPU)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Arithmetic/Logic Unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . .87
CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . .87
Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Index Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Stack Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Program Counter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Condition Code Register . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Central Processor Unit (CPU)
Advance Information
79