mc68hc908mr8 Freescale Semiconductor, Inc, mc68hc908mr8 Datasheet - Page 71

• Manufacturer Part Number: mc68hc908mr8
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Technical Data — MC68HC908MR8
6.1 Contents
6.2 Introduction
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
6.2
6.3
6.4
6.4.1
6.4.2
6.4.3
6.4.4
6.4.5
6.5
6.6
6.6.1
6.6.2
6.7
6.8
This section describes the central processor unit (CPU08, version A).
The M68HC08 CPU is an enhanced and fully object-code-compatible
version of the M68HC05 CPU. The CPU08 Reference Manual,
Freescale document number CPU08RM/AD, contains a description of
the CPU instruction set, addressing modes, and architecture.
Section 6. Central Processor Unit (CPU)
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
CPU Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Arithmetic/Logic Unit (ALU). . . . . . . . . . . . . . . . . . . . . . . . . .78
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Index Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Stack Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Program Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Condition Code Register . . . . . . . . . . . . . . . . . . . . . . . . . .76
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
Central Processor Unit (CPU)
Technical Data
71