Intel 8XC251SA User Manual page 420

8XC251SA, SB, SP, SQ USER'S MANUAL
P2
Port 2. P2 is the SFR that contains data to be driven out from the port 2 pins. Read-modify-write
instructions that read port 2 read this register. Other instructions that read port 2 read the port 2 pins.
7
Bit Bit
Number Mnemonic
7:0 P2.7:0
P3
Port 3. P3 is the SFR that contains data to be driven out from the port 3 pins. Read-modify-write
instructions that read port 3 read this register. Other instructions that read port 3 read the port 3 pins.
7
Bit Bit
Number Mnemonic
7:0 P3.7:0
C-18
P2 Contents
Port 2 Register:
Write data to be driven onto the port 2 pins to these bits.
P3 Contents
Port 3 Register:
Write data to be driven onto the port 3 pins to these bits.
Address:
Reset State:
Function
Address:
Reset State:
Function
S:A0H
1111 1111B
0
S:B0H
1111 1111B
0