參數(shù)資料
型號(hào): μPD789806Y
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8位單片微控制器)
中文描述: 8位單片機(jī)微控制器(8位單片微控制器)
文件頁數(shù): 34/125頁
文件大?。?/td> 366K
代理商: ΜPD789806Y
CHAPTER 3 ADDRESSING
17
3.2 OPERAND ADDRESS ADDRESSING
The following various methods are available to specify the register and memory (addressing) which undergo
manipulation during instruction execution.
3.2.1 Direct Addressing
[Function]
The memory to be manipulated is directly addressed with immediate data in an instruction word.
[Operand format]
Identifier
Description
addr16
Label or 16 bit immediate data
[Description example]
MOV A,!FE00H; When setting !addr16 to FE00H
Instruction code
0
0
1
0
1
0
0
1
OP code
0
0
0
0
0
0
0
0
00H
1
1
1
1
1
1
1
0
FEH
[Illustration]
7
0
OP code
addr16 (lower byte)
Memory
addr16 (higher byte)
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