參數(shù)資料
型號: MC68HSC05P1ADWR2
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO28
封裝: SOIC-28
文件頁數(shù): 101/124頁
文件大?。?/td> 623K
代理商: MC68HSC05P1ADWR2
NON-DISCLOSURE
AGREEMENT
REQUIRED
Instruction Set
General Release Specification
MC68HC05P1A Rev. 3.0
78
Instruction Set
MOTOROLA
9.2 Introduction
The MCU instruction set has 62 instructions and uses eight addressing
modes. The instructions include all those of the M146805 CMOS Family
plus one more: the unsigned multiply (MUL) instruction. The MUL
instruction allows unsigned multiplication of the contents of the
accumulator (A) and the index register (X). The high-order product is
stored in the index register, and the low-order product is stored in the
accumulator.
9.3 Addressing Modes
The CPU uses eight addressing modes for flexibility in accessing data.
The addressing modes provide eight different ways for the CPU to find
the data required to execute an instruction. The eight addressing modes
are:
Inherent
Immediate
Direct
Extended
Indexed, no offset
Indexed, 8-bit offset
Indexed, 16-bit offset
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