UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 75

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

3.4.5 Special function register (SFR) addressing
Effective address
[Function]
[Operand format]
[Description example]
A memory-mapped special function register (SFR) is addressed with 8-bit immediate data in an instruction word.
This addressing is applied to the 240-byte spaces FF00H to FFCFH and FFE0H to FFFFH. However, the SFRs
mapped at FF00H to FF1FH can be accessed with short direct addressing.
MOV PM0, A; when selecting PM0 (FF20H) as sfr
[Illustration]
15
7
1
Operation code
sfr
sfrp
Identifier
1
1
OP code
sfr-offset
1
Special function register name
16-bit manipulatable special function register name (even address
only)
1
1
CHAPTER 3 CPU ARCHITECTURE
1
1
0
User’s Manual U17554EJ4V0UD
1
0
8 7
1
0
1
1
1
0
0
0
Description
1
0
1
0
0
0
OP code
20H (sfr-offset)
0
SFR
75