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Chapter 3 Port Functions
48
I/O Port Configuration and Functions
■ P01
Figure 3-3-2 Configuration and Functions of P01
R
D
L
Q
Write
Read
Read
R
D
L
Q
Reset
Write
Read
R
D
L
Q
Reset
Write
Read
Pull-up resistor control
I/O direction control
Port output data
Special function input data
Port input data
Data bus
Reset
Schmitt trigger input
P0PLU1
P0PLU
(X'03F40')
P0DIR
(X'03F30')
P0OUT
(X'03F10')
P0IN
(X'03F20')
P0DIR1
P0OUT1
P0IN1
SBI0/RXD
P01
Special function input
Pull-up
resistor
control
I/O direction
control
Port output
Port input
Control bit
Register
(address)
Control bit
Register
(address)
Control bit
Register
(address)
Control bit
Register
(address)
Special function