Datasheet

RL78/L12 CHAPTER 2 PIN FUNCTIONS
R01UH0330EJ0200 Rev.2.00 38
Dec 13, 2013
Table 2-3. Connection of Unused Pins (64-pin products) (2/3)
Remarks 1. With products not provided with an EV
DD or EVSS pin, replace EVDD with VDD, or replace EVSS with VSS.
2. Functions in parentheses in the above figure can be assigned via settings in the peripheral I/O redirection
register (PIOR)
Pin Name I/O Recommended Connection of Unused Pins
P50/INTP5/SEG7/(PCLBUZ0) I/O <When setting to port I/O>
Input: Independently connect to EV
DD or EVSS via a resistor.
Output: Leave open.
<When setting to segment output>
Leave open.
P51/TI06/TO06/SEG8
P52/INTP6/SEG9
P53/TI07/TO07/SEG10/
(INTP1)
P54/SEG11/(TI02)/(TO02)/
(INTP2)
P60/SCLA0/SEG21 Input: Independently connect to EVDD or EVSS via a resistor.
Output: Set the port’s output latch to 0 and leave the pins open, or set the port’s output
latch to 1 and independently connect the pins to EV
DD or EVSS via a resistor.
P61/SDAA0/SEG20
P70/KR0/SEG16 <When setting to port I/O>
Input: Independently connect to EV
DD or EVSS via a resistor.
Output: Leave open.
<When setting to segment output>
Leave open.
P71/KR1/SEG15
P72/KR2/SEG14
P73/KR3/SEG13
P74/SEG12
P120/ANI17/SEG25
P121/X1 Input Independently connect to VDD or VSS via a resistor.
P122/X2/EXCLK
P123/XT1
P124/XT2/EXCLKS
P125/VL3 I/O
Input: Independently connect to EV
DD or EVSS via a resistor.
Output: Leave open.
P126/CAPL
P127/CAPH
P130 Output Leave open.
P137/INTP0 Input Independently connect to VDD or VSS via a resistor.
P140/TO00/PCLBUZ0/
SEG27/(INTP6)
I/O <When setting to port I/O>
Input: Independently connect to EV
DD or EVSS via a resistor.
Output: Leave open.
<When setting to segment output>
Leave open.
P141/TI00/PCLBUZ1/SEG26/
(INTP7)
P142/ANI20/SEG33
P143/ANI21/SEG34
P144/ANI22/SEG35
P145/ANI23/SEG36
P146/SEG37
P147/SEG38
RESET Input Connect directly or via a resistor to VDD.
REGC
−
Connect to VSS via capacitor (0.47 to 1 μ F).
<R>