Datasheet

78K0/Kx2-L CHAPTER 4 PORT FUNCTIONS
R01UH0028EJ0400 Rev.4.00 119
Sep 27, 2010
Table 4-2. Port Functions (78K0/KY2-L)
Function Name I/O Function After Reset Alternate Function
P00 TI000/INTP0
P01
I/O
Port 0.
2-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
TO00/TI010
P20
ANI0/AMP0
-
Note
P21
ANI1/AMP0OUT
Note
/
PGAIN
Note
P22 ANI2/AMP0+
Note
P23
I/O
Port 2.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Analog input
ANI3
P30 I/O
Port 3.
1-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 TOH1/TI51/INTP1
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
P121 X1/TOOLC0
P122
Input port
X2/EXCLK/TOOLD0
P125
Input
Port 12.
3-bit input-only port.
For only P125, use of an on-chip pull-up resistor can be
specified by a software setting.
Reset input RESET
Note
μ PD78F0555, 78F0556, and 78F0557 (products with operational amplifier) only