UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 45

• 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

3.4.3 Special function register (SFR) addressing
[Function]
[Operand format]
[Description example]
[Illustration]
Effective
address
A memory-mapped special function register (SFR) is addressed with the 8-bit immediate data in an instruction
word.
This addressing is applied to the 256-byte space FF00H to FFFFH. However, SFRs mapped at FF00H to
FF1FH are accessed with short direct addressing.
MOV PM0, A; When selecting PM0 for sfr
Identifier
15
7
sfr
1
1
1
Special function register name
OP code
sfr-offset
1
Instruction code
1
1
1
CHAPTER 3 CPU ARCHITECTURE
1
0
8 7
User’s Manual U16898EJ5V0UD
0
1
Description
1
0
1
1
0
0
0
0
0
1
0
1
0
1
0
SFR
45