HD6432646 Hitachi, HD6432646 Datasheet - Page 58

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Type
LCD
controller/driver
I/O ports
24
Symbol
SEG24 to
SEG1
(H8S/2646,
H8S/2646R,
H8S/2645)
SEG40 to
SEG1
(H8S/2648,
H8S/2648R,
H8S/2647)
COM4 to
COM1
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
I/O
Output
Output
I/O
I/O
I/O
Input
I/O
Input
I/O
I/O
I/O
I/O
I/O
Name and Function
LCD segment output: LCD segment output pins
LCD common output: LCD common output pins
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).
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).
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).
Port 4: 8-bit input pins.
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).
Port 9: 8-bit input pins.
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).
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).
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).
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).
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).