Datasheet

78K0/Kx2-L CHAPTER 4 PORT FUNCTIONS
R01UH0028EJ0400 Rev.4.00 124
Sep 27, 2010
Table 4-6. Port Functions (78K0/KC2-L) (2/2)
Function Name I/O Function After Reset Alternate Function
P60
SCLA0/SCK11/
INTP11
P61 SDAA0/SI11/INTP10
P62 SO11/INTP9
P63
Note 2
I/O
Port 6.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Input of P60 and P61 can be set to SMBus input buffer in
1-bit units.
Output of P60 to P63 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
INTP8
Note 2
P70 KR0
P71 KR1
P72 KR2
P73 KR3
P74
Note 1
KR4
Note 1
P75
Note 1
I/O
Port 7.
6-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
KR5
Note 1
P120 I/O EXLVI/INTP0
(/SO11)
Note 2
P121 X1/TOOLC0
P122 X2/EXCLK/TOOLD0
P123 XT1
P124
Input port
XT2/EXCLKS
P125
Input
Port 12.
1-bit I/O port and 5-bit input port.
For only P120 and P125, use of an on-chip pull-up resistor
can be specified by a software setting.
Reset input RESET
Notes 1. 48-pin products only
2. 44-pin and 48-pin products only
Remark Functions in parentheses ( ) can be assigned by setting the port alternate switch control register (MUXSEL).