Datasheet

78K0/Ix2 CHAPTER 4 PORT FUNCTIONS
R01UH0010EJ0500 Rev.5.00 100
Feb 28, 2012
Table 4-4. Port Functions (78K0/IB2 (30 Pins))
Function Name I/O Function After Reset Alternate Function
P00 TI000/INTP0
P01 TO00/TI010
P02
I/O
Port 0.
3-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
SSI11/INTP5
P20
ANI0/AMP
-
Note
P21
ANI1/AMPOUT
Note
/
PGAIN
Note
P22 ANI2/AMP+
Note
P23 ANI3/CMP2+
P24 ANI4/CMP0+
P25 ANI5/CMP1+
P26 ANI6/CMPCOM
P27
I/O
Port 2.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Analog input
ANI7
P30 TOH1/TI51/INTP1
P31 TOX00/INTP2/TOOLC1
P32 TOX01/INTP3/TOOLD1
P33 TOX10
P34 TOX11/INTP4
P35 SCK11
P36 SI11
P37
I/O
Port 3.
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
SO11
P60 SCLA0/TxD6
P61
I/O
Port 6.
2-bit I/O port.
Input/output can be specified in 1-bit units.
Input can be set to SMBus input buffer in 1-bit units.
Output can be set to N-ch open-drain output (V
DD
tolerance).
Use of an on-chip pull-up resistor can be specified by a
software setting.
Input port
SDAA0/RxD6
P70 I/O
Port 7.
1-bit I/O port.
Input/output can be specified in 1-bit units.
Analog input ANI8
P121
X1/TOOLC0/TI000/
INTP0
P122 X2/EXCLK/TOOLD0
P125
Input
Port 12.
3-bit input port.
For only P125, use of an on-chip pull-up resistor can be
specified by a software setting.
Input port
RESET
Note
 PD78F0755, 78F0756 (products with operational amplifier) only
Remark Functions in angle brackets < > can be assigned by setting the input switch control register (MUXSEL).