CHAPTER 5 PORT FUNCTIONS
Preliminary User’s Manual U17260EJ3V1UD
100
Table 5-2. Port Functions (1/2)
Pin Name
I/O
Function
After Reset
Alternate Function
P00
TI000
P01
TI010/TO00
P02
SO11
Note1
P03
SI11
Note1
P04
SCK11
Note1
P05
SSI11
Note1
/TI001
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
INTP4/TI51/TO51
P40 to P43
I/O
Port 4.
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
−
P50 to P53
I/O
Port 5.
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
−
P60
SCL0
P61
SDA0
P62
EXSCL0
P63
I/O
Port 6.
4-bit I/O port (N-ch open drain).
Input/output can be specified in 1-bit units.
Input port
−
P70 to P77
I/O
Port 7.
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
KR0 to KR7
Notes 1.
Available only in the
µ
PD78F0534, 78F0535, 78F0536, 78F0537, and 78F0537D.
2.
µ
PD78F0537D only