MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 89

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

7.1 Contents
7.2 Introduction
MC68HC908AB32
MOTOROLA
Technical Data — MC68HC908AB32
—
Rev. 1.0
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
7.6.1
7.6.2
7.7
7.8
7.9
The M68HC08 CPU (central processor unit) is an enhanced and fully
object-code-compatible version of the M68HC05 CPU. The CPU08
Reference Manual (Motorola document order number CPU08RM/AD)
contains a description of the CPU instruction set, addressing modes,
and architecture.
Freescale Semiconductor, Inc.
For More Information On This Product,
Section 7. Central Processor Unit (CPU)
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
CPU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Arithmetic/Logic Unit (ALU) . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
CPU During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Instruction Set Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Opcode Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Index Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Stack Pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Program Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Condition Code Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Central Processor Unit (CPU)
Go to: www.freescale.com
Technical Data
89