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(2) Control mode
P120 functions as an external interrupt request input pin (INTP0) for which the valid edge (rising edge, falling
edge, or both rising and falling edges) can be specified.
2.2.6 P130 (port 13)
P130 functions as a 1-bit output-only port.
2.2.7 AV
REF
This is the A/D converter reference voltage input pin.
When A/D converter is not used, connect this pin directly to V
2.2.8 AV
SS
This is the A/D converter ground potential pin. Even when the A/D converter is not used, always use this pin with
the same potential as the V
2.2.9 RESET
This is the active-low system reset input pin.
2.2.10 X1 and X2
These are the pins for connecting a resonator for high-speed system clock oscillation.
When supplying an external clock, input a signal to the X1 pin and input the inverse signal to the X2 pin.
2.2.11 CL1 and CL2
These are the pins for connecting a resistor (R) and capacitor (C) for high-speed system clock oscillation.
When supplying an external clock, input a signal to the CL1 pin and input the inverse signal to the CL2 pin.
2.2.12 V
DD
This is the positive power supply pin.
2.2.13 V
SS
This is the ground potential pin.
2.2.14 FLMD0 and FLMD1
These pins set the flash memory programming mode.
Connect FLMD0 to V
in the normal operation mode (FLMD1 is not used in the normal operation mode).
SS
Always connect FLMD0 and FLMD1 to the flash programmer in the flash memory programming mode.
CHAPTER 2 PIN FUNCTIONS
pin.
SS
Preliminary User's Manual U16846EJ1V0UD
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DD
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