U18680EJ1V0PM00_15 Datasheet, PDF (10/30 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78F9221CS, 78F9222CS
1.2 Non-port Functions
Pin Name
I/O
Function
INTP0
INTP1
Input
External interrupt input for which the valid edge (rising edge,
falling edge, or both rising and falling edges) can be specified
INTP2
INTP3
RxD6
Input
Serial data input for asynchronous serial interface
TxD6
Output Serial data output for asynchronous serial interface
TI000
Input
External count clock input to 16-bit timer/event counter 00.
Capture trigger input to capture registers (CR000 and CR010) of
16-bit timer/event counter 00
TI010
Capture trigger input to capture register (CR000) of 16-bit
timer/event counter 00
TO00
Output 16-bit timer/event counter 00 output
TOH1
Output 8-bit timer H1 output
ANI0 to ANI3 Input
Analog input of A/D converter
AVREF
−
Reference voltage of A/D converter
RESET
Input
System reset input
X1
Input
Connection of crystal/ceramic resonator for system clock
oscillation.
External clock input
X2
−
Connection of crystal/ceramic resonator for system clock
oscillation.
VDD
−
Positive power supply
VSS
−
Ground potential
Caution The P121/X1 and P122/X2 pins are pulled down during reset.
After Reset
Alternate-
Function Pin
Input
P30/TI000
P43/TxD6
P31/TI010/TO00
P41
Input
P44
Input
P43/INTP1
Input
P30/INTP0
Input
Input
Input
−
−
−
P31/TO00/INTP2
P31/TI010/INTP2
P42
P20 to P23
−
P34
P121
−
P122
−
−
−
−
8
Preliminary Product Information U18680EJ1V0PM00