
15
Type
Symbol
I/O
Name and Function
I/O ports
P17 to
P10
I/O
Port 1: An 8-bit I/O port. Input or output can be designated
for each bit by means of the port 1 data direction register
(P1DDR).
P36 to
P30
I/O
Port 3: A 7-bit I/O port. Input or output can be designated for
each bit by means of the port 3 data direction register
(P3DDR).
P47 to
P40
Input
Port 4: An 8-bit input port.
P77 to
P70
I/O
Port 7: An 8-bit I/O port. Input or output can be designated
for each bit by means of the port 7 data direction register
(P7DDR).
P96
Input
Port 9: A 1-bit input port.
PA3 to
PA0
I/O
Port A: A 4-bit I/O port. Input or output can be designated
for each bit by means of the port A data direction register
(PADDR).
PB7 to
PB0
I/O
Port B: An 8-bit I/O port. Input or output can be designated
for each bit by means of the port B data direction register
(PBDDR).
PC7 to
PC0
I/O
Port C: An 8-bit I/O port. Input or output can be designated
for each bit by means of the port C data direction register
(PCDDR).
PD7 to
PD0
I/O
Port D: An 8-bit I/O port. Input or output can be designated
for each bit by means of the port D data direction register
(PDDDR).
PE7 to
PE0
I/O
Port E: An 8-bit I/O port. Input or output can be designated
for each bit by means of the port E data direction register
(PEDDR).
PF7 to
PF0
I/O
Port F: An 8-bit I/O port. Input or output can be designated
for each bit by means of the port F data direction register
(PFDDR).
PG4 to
PG0
I/O
Port G: A 5-bit I/O port. Input or output can be designated
for each bit by means of the port G data direction register
(PGDDR).