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Chapter 3 Port Functions
49
■ PA0 to PA7
Figure 3-3-3 Configuration and Functions of PA0 to PA7
R
D
L
Q
Reset
Write
Read
R
D
L
Q
Reset
Write
Read
Read
R
D
L
Q
Reset
Write
Read
Pull-up/pull-down resistor control
Pull-up/pull-down resistor selection
Input mode control
Analog input
Port input data
Data bus
Data bus
PAPLUD0
PAPLUD
(X'03F4A')
FLOAT1
(X'03F4B')
PAIMD
(X'03F3A')
PAIN
(X'03F2A')
PAAIN0 PAAIN1 PAAIN2 PAAIN3
PARDWN
PAAIN4 PAAIN5 PAAIN6 PAAIN7
PAIN0 PAIN1 PAIN2 PAIN3 PAIN4 PAIN5 PAIN6 PAIN7
PAPLUD1 PAPLUD2 PAPLUD3 PAPLUD4 PAPLUD5 PAPLUD6 PAPLUD7
AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7
PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7
Pull-up
resistor
control
Pull-up/
pull-down
resistor
control
Input mode
control
Port input
Control bit
Register
(address)
Control bit
Register
(address)
Control bit
Register
(address)
Control bit
Register
(address)
Special function
Special function
input
I/O Port Configuration and Functions