UPD78F9500MA-CAC-A Datasheet, PDF (24/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

CHAPTER 2 PIN FUNCTIONS
(2) Non-port pins
Pin Name
I/O
Function
INTP0
INTP1
TI000
TI010
TO00
Input
External interrupt input for which the valid edge (rising edge,
falling edge, or both rising and falling edges) can be specified
Input
Output
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
Capture trigger input to capture register (CR000) of 16-bit
timer/event counter 00
16-bit timer/event counter 00 output
TOH1
ANI0
ANI1
Output
Input
8-bit timer H1 output
Analog input of A/D converter
ANI2^Note
ANI3^Note
RESET ^Note
X1^Note
X2^Note
Input
Input
−
System reset input
Connection of crystal/ceramic oscillator for system clock
oscillation.
External clock input
Connection of crystal/ceramic oscillator for system clock
oscillation.
VDD
−
Positive power supply
VSS
−
Ground potential
Note For the setting method for pin functions, see CHAPTER 15 OPTION BYTE.
After Reset
Alternate-
Function Pin
Input
P21/ANI1/TI010/
TO00
P32
Input
P20/ANI0/TOH1
Input
Input
Input
Input
−
P21/ANI1/TO00/
INTP0
P21/ANI1/TI010/
INTP0
P20/ANI0/TI000
P20/TI000/TOH1
P21/TI010/TO00/
INTP0
P22/X2^Note
P23/X1^Note
P34^Note
P23/ANI3^Note
−
P22/ANI2^Note
−
−
−
−
Caution The P22/X2/ANI2 and P23/X1/ANI3 pins are pulled down during reset.
22
User’s Manual U18172EJ3V0UD