UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 87

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

3.4.6 Register indirect addressing
[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 of the memory spaces. However, before addressing a memory bank
that is not set by the memory bank select register (BANK), change the setting of the memory bank by using
BANK.
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 U17260EJ6V0UD
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
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