UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 47

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

Specifications of UPD78F9222MC(T)-5A4-A

• Controller Family/series: UPD78
• No. Of I/o's: 17
• Ram Memory Size: 256Byte
• Cpu Speed: 10MHz
• No. Of Timers: 4
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

3.4.5 Register indirect addressing
[Function]
[Operand format]
[Description example]
[Illustration]
The memory is addressed with the contents of the register pair specified as an operand. The register pair to be
accessed is specified with the register pair specify code in the instruction code. This addressing can be carried
out for all the memory spaces.
MOV A, [DE]; When selecting register pair [DE]
The contents of addressed
memory are transferred
Identifier
DE
A
7
15
[DE], [HL]
Instruction code
D
CHAPTER 3 CPU ARCHITECTURE
User’s Manual U16898EJ5V0UD
0
8
0
7
7
Description
0
1
E
0
1
0
0
0
1
1
Memory address specified
by register pair DE
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