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