Chapter 2 Pin Functions; Pin Function List - NEC 78K0 Series User Manual

2.1 Pin Function List

There are three types of pin I/O buffer power supplies: AV
power supplies and the pins is shown below.
(1) Port functions (1/2)
Function Name I/O
P00 I/O
P01
P02
P03
P04
P05
P06
P10 I/O
P11
P12
P13
P14
P15
P16
P17
P20 to P27 I/O
P30 I/O
P31
P32
P33
Notes 1. Available only in the
µ
2. PD78F0537D only
32

CHAPTER 2 PIN FUNCTIONS

Table 2-1. Pin I/O Buffer Power Supplies
Power Supply
AV P20 to P27
REF
EV Port pins other than P20 to P27 and P121 to P124
DD
• P121 to P124
V
DD
• Pins other than port
Function
Port 0.
7-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a software
setting.
Port 1.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a software
setting.
Port 2.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Port 3.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a software
setting.
µ
PD78F0534, 78F0535, 78F0536, 78F0537, and 78F0537D.
Preliminary User's Manual U17260EJ3V1UD
, EV , and V . The relationship between these
REF DD DD
Corresponding Pins
After Reset Alternate Function
Input port TI000
TI010/TO00
Note1
SO11
Note1
SI11
Note1
SCK11
Note1
TI001 /
Note1
SSI11
Note1
TI011 /
Note1
TO01
Input port SCK10/TxD0
SI10/RxD0
SO10
TxD6
RxD6
TOH0
TOH1/INTP5
TI50/TO50
Analog input ANI0 to ANI7
Input port INTP1
INTP2/OCD1A
INTP3/OCD1B
TI51/TO51/INTP4
Note2
Note2