14
Type
Symbol
Pin No.
I/O
Name and Function
I/O ports
P9
5
to
P9
0
72, 11
71, 10
70, 9
Input/
output
Port 9: Six input/output pins. The direction
of each pin can be selected in the port 9
data direction register (P9DDR).
PA
7
to
PA
0
80 to 73
Input/
output
Port A: Eight input/output pins. The
direction of each pin can be selected in the
port A data direction register (PADDR).
PB
7
, PB
5
to PB
0
8, 6 to 1
Input/
output
Port B: Seven input/output pins. The
direction of each pin can be selected in the
port B data direction register (PBDDR).