UPD784218 Datasheet, PDF (14/92 Pages) NEC – 16-/8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784218, 784218Y
6. PIN FUNCTIONS
6.1 Port Pins (1/2)
Pin Name
P00
P01
P02
P03
P04
P05
P06
P10 to P17
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34
P35
P36
P37
P40 to P47
P50 to P57
I/O
I/O
Input
I/O
I/O
I/O
I/O
Alternate Function
INTP0
INTP1
INTP2/NMI
INTP3
INTP4
INTP5
INTP6
ANI0 to ANI7
RxD1/SI1
TxD1/SO1
ASCK1/SCK1
PCL
BUZ
SI0/SDA0^Note
SO0
SCK0/SCL0^Note
TO0
TO1
TO2
TI1
TI2
TI00
TI01
EXA
AD0 to AD7
A8 to A15
Function
Port 0 (P0):
• 7-bit I/O port
• Input/output can be specified in 1-bit units.
• Whether specifying input mode or output mode, use of an on-chip
pull-up resistor can be specified in 1-bit units by means of
software.
Port 1 (P1):
• 8-bit input-only port
Port 2 (P2):
• 8-bit I/O port
• Input/output can be specified in 1-bit units.
• Whether specifying input mode or output mode, use of an on-chip
pull-up resistor can be specified in 1-bit units by means of
software.
Port 3 (P3):
• 8-bit I/O port
• Input/output can be specified in 1-bit units.
• Whether specifying input mode or output mode, use of an on-chip
pull-up resistor can be specified in 1-bit units by means of
software.
Port 4 (P4):
• 8-bit I/O port
• Input/output can be specified in 1-bit units.
• All pins set in input mode can be connected to on-chip pull-up
resistors by means of software.
• LEDs can be driven directly.
Port 5 (P5):
• 8-bit I/O port
• Input/output can be specified in 1-bit units.
• All pins set in input mode can be connected to on-chip pull-up
resistors by means of software.
• LEDs can be driven directly.
Note SDA0 and SCL0 are incorporated only in the µPD784218Y.
14
Data Sheet U12304EJ2V0DS00