Preliminary User’s Manual U17260EJ3V1UD
32
CHAPTER 2 PIN FUNCTIONS
2.1 Pin Function List
There are three types of pin I/O buffer power supplies: AV
REF
, EV
DD
, and V
DD
. The relationship between these
power supplies and the pins is shown below.
Table 2-1. Pin I/O Buffer Power Supplies
Power Supply
Corresponding Pins
AV
REF
P20 to P27
EV
DD
Port pins other than P20 to P27 and P121 to P124
V
DD
•
P121 to P124
•
Pins other than port
(1) Port functions (1/2)
Function Name
I/O
Function
After Reset
Alternate Function
P00
TI000
P01
TI010/TO00
P02
SO11
Note1
P03
SI11
Note1
P04
SCK11
Note1
P05
TI001
Note1
/
SSI11
Note1
P06
I/O
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.
Input port
TI011
Note1
/
TO01
Note1
P10
SCK10/TxD0
P11
SI10/RxD0
P12
SO10
P13
TxD6
P14
RxD6
P15
TOH0
P16
TOH1/INTP5
P17
I/O
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.
Input port
TI50/TO50
P20 to P27
I/O
Port 2.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Analog input ANI0 to ANI7
P30
INTP1
P31
INTP2/OCD1A
Note2
P32
INTP3/OCD1B
Note2
P33
I/O
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.
Input port
TI51/TO51/INTP4
Notes 1.
Available only in the
µ
PD78F0534, 78F0535, 78F0536, 78F0537, and 78F0537D.
2.
µ
PD78F0537D only