參數(shù)資料
型號: MC68HC05J1AVP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20
封裝: PLASTIC, DIP-20
文件頁數(shù): 105/128頁
文件大?。?/td> 1279K
代理商: MC68HC05J1AVP
Technical Data
MC68HC05J1A — Rev. 3.0
78
Instruction Set
MOTOROLA
Instruction Set
9.2 Introduction
The microcontroller unit (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 central processor unit (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
Relative
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