UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 83

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

3.4.5 Special function register (SFR) addressing
Effective address
[Function]
[Operand Format]
[Example]
[Operation]
This addressing is to address special function registers (SFRs) mapped to the memory by using the 8-bit
immediate data in an instruction word.
This addressing is applied to the 240-byte space of FF00H to FFCFH and FFE0H to FFFFH. However, the SFRs
mapped to the area of FF00H to FF1FH can also be accessed by means of short direct addressing.
sfr
sfrp
MOV PM0, A; To select PM0 (FF20H) as sfr
Representation
7
15
1
Special function register name
Name of special function register that can be manipulated in 16-bit units (even address only)
1
1
Instruction code
OP code
sfr-offset
1
1
1
CHAPTER 3 CPU ARCHITECTURE
1
User’s Manual U13029EJ7V1UD
8
1
0
7
1 1 1 1 0 1 1 0
0 0 1 0 0 0 0 0
Description
0
OP code
20H (sfr-offset)
SFR
81