Chapter 2 Pin Functions; Pin Function List - NEC mPD784225 Series User Manual

2.1 Pin Function List

(1) Port pins (1/2)
Pin Name I/O
P00 I/O
P01
P02
P03
P04
P05
P10 to P17 Input
P20 I/O
P21
P22
P23
P24
P25
P26
P27
P30 I/O
P31
P32
P33
P34
P35
P36
P37
P40 to P47 I/O
Note The SDA0 and SCL0 pins are provided only for the µ PD784225Y Subseries.

CHAPTER 2 PIN FUNCTIONS

Alternate Function
INTP0 Port 0 (P0):
• 6-bit I/O port
INTP1
• Input/output can be specified in 1-bit units.
INTP2/NMI
• Regardless of whether the input or output mode is specified, use of
INTP3
an on-chip pull-up resistor can be specified by software in 1-bit units.
INTP4
INTP5
ANI0 to ANI7 Port 1 (P1):
• 8-bit input-only port
RxD1/SI1 Port 2 (P2):
• 8-bit I/O port
TxD1/SO1
• Input/output can be specified in 1-bit units.
ASCK1/SCK1
• Regardless of whether the input or output mode is specified, use of
PCL
an on-chip pull-up resistor can be specified by software in 1-bit units.
BUZ
Note
SI0/SDA0
SO0
Note
SCK0/SCL0
TO0 Port 3 (P3):
• 8-bit I/O port
TO1
• Input/output can be specified in 1-bit units.
TO2
• Regardless of whether the input or output mode is specified, use of
TI1
an on-chip pull-up resistor can be specified by software in 1-bit units.
TI2
TI00
TI01
EXA
AD0 to AD7 Port 4 (P4):
• 8-bit I/O port
• Input/output can be specified in 1-bit units.
• For input mode pins, use of on-chip pull-up resistors can be
specified for all pins by software.
• LEDs can be driven directly.
User's Manual U12697EJ3V0UM
Function
43