UPD78F0138 NEC, UPD78F0138 Datasheet - Page 86

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

3.4.6 Register indirect addressing
86
[Function]
[Operand format]
[Description example]
[Illustration]
Register pair contents specified by a register pair specify code in an instruction word and by a register bank
select flag (RBS0 and RBS1) serve as an operand address for addressing the memory. This addressing can be
carried out for all the memory spaces.
MOV A, [DE]; when selecting [DE] as register pair
The contents of the memory
addressed are transferred.
DE
A
16
7
Identifier
−
D
[DE], [HL]
Operation code
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U16228EJ2V0UD
8
0
7
7
1
Description
Memory
0
E
0
0
0
1
0
0
0
1
The memory address
specified with the
register pair DE