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Table 1-3 Pin Functions (cont)
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Type
Symbol
I/O ports
P5
to P5
3
P6
to P6
6
P7
to P7
7
P8
to P8
4
P9
to P9
5
PA
to PA
7
PB
to PB
7
Pin No.
I/O
56 to 53
Input/
0
output
72 to 69,
Input/
0
60 to 58
output
85 to 78
Input
0
91 to 87
Input/
0
output
17 to 12
Input/
0
output
100 to 93
Input/
0
output
9 to 2
Input/
0
output
14
Name and Function
Port 5: Four input/output pins. The direction of
each pin can be selected in the port 5 data
direction register (P5DDR).
Port 6: Seven input/output pins. The direction
of each pin can be selected in the port 6 data
direction register (P6DDR).
Port 7: Eight input pins
Port 8: Five input/output pins. The direction of
each pin can be selected in the port 8 data
direction register (P8DDR).
Port 9: Six input/output pins. The direction of
each pin can be selected in the port 9 data
direction register (P9DDR).
Port A: Eight input/output pins. The direction of
each pin can be selected in the port A data
direction register (PADDR).
Port B: Eight input/output pins. The direction of
each pin can be selected in the port B data
direction register (PBDDR).
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