NEC PD754244 Manuel D’Utilisation
CHAPTER 2 PIN FUNCTIONS
31
User’s Manual U10676EJ3V0UM
2.4 Processing of Unused Pins
Table 2-3. Recommended Connection of Unused Pins
Pin
Recommended Connection
P30/PTO0
Input:
Independently connect to V
SS
or V
DD
via a resistor.
P31/PTO1
Output: Leave open.
P32/PTO2
P33
P60/AV
REF
P61/INT0
P62/PTH00
P63/PTH01
P70/KR4
Connect to V
DD
.
P71/KR5
P72/KR6
P73/KR7
P80
Input:
Independently connect to V
SS
or V
DD
via a resistor.
Output: Leave open.
KRREN
When this pin is connected to V
DD
, the internal reset signal is
generated at the falling edge of the KRn pin in the STOP mode.
When this pin is connected to V
SS
, the internal reset signal is not
generated even if the falling edge of the KRn pin is detected in the
STOP mode.
IC
Connect directly to V
DD
.