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Type
Symbol
LCD
SEG24 to
controller/driver
SEG1
(H8S/2646,
H8S/2646R,
H8S/2645)
SEG40 to
SEG1
(H8S/2648,
H8S/2648R,
H8S/2647)
COM4 to
COM1
I/O ports
P17 to P10
P27 to P20
P37 to P30
P47 to P40
P52 to P50
P97 to P90
PA7 to PA0
PB7 to PB0
PC7 to PC0
PD7 to PD0
PE7 to PE0
24
I/O
Name and Function
Output
LCD segment output: LCD segment output pins
Output
LCD common output: LCD common output pins
I/O
Port 1: 8-bit I/O pins. Input or output can be designated
for each bit by means of the port 1 data direction
register (P1DDR).
I/O
Port 2: 8-bit I/O pins. Input or output can be designated
for each bit by means of the port 2 data direction
register (P2DDR).
I/O
Port 3: 8-bit I/O pins. Input or output can be designated
for each bit by means of the port 3 data direction
register (P3DDR).
Input
Port 4: 8-bit input pins.
I/O
Port 5: 3-bit I/O pins. Input or output can be designated
for each bit by means of the port 5 data direction
register (P5DDR).
Input
Port 9: 8-bit input pins.
I/O
Port A: 8-bit I/O pins. Input or output can be
designated for each bit by means of the port A data
direction register (PADDR).
I/O
Port B: 8-bit I/O pins. Input or output can be
designated for each bit by means of the port B data
direction register (PBDDR).
I/O
Port C: 8-bit I/O pins. Input or output can be
designated for each bit by means of the port C data
direction register (PCDDR).
I/O
Port D: 8-bit I/O pins. Input or output can be
designated for each bit by means of the port D data
direction register (PDDDR).
I/O
Port E: 8-bit I/O pins. Input or output can be
designated for each bit by means of the port E data
direction register (PEDDR).
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