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3.4 Operand Address Addressing
The following various methods are available to specify the register and memory (addressing) which undergo
manipulation during instruction execution.
3.4.1 Direct addressing
[Function]
The memory indicated with immediate data in an instruction word is directly addressed.
[Operand format]
Identifier
addr16
[Description example]
MOV A, !FE00H; When setting !addr16 to FE00H
[Illustration]
CHAPTER 3 CPU ARCHITECTURE
Description
Label or 16-bit immediate data
Instruction code
0
0
1
0
0
0
1
1
1
7
OP code
addr16 (Lower)
addr16 (Higher)
User's Manual U15331EJ4V1UD
0
1
0
0
1
OP code
0
0
0
0
0
00H
1
1
1
1
0
FEH
0
Memory
69
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