Datasheet

CHAPTER 2 PIN FUNCTIONS
User’s Manual U18698EJ1V0UD
29
(2) Non-port pins (1/2)
Function Name I/O Function After Reset Alternate Function
ANI0
Note
P20/SEG21
ANI1
Note
P21/SEG20
ANI2
Note
P22/SEG19
ANI3
Note
P23/SEG18
ANI4
Note
P24/SEG17
ANI5
Note
Input
10-bit
successive approximation type A/D converter
analog input.
Digital input
port
P25/SEG16
AVREF
Note
Input
10-bit
successive approximation type A/D converter
reference voltage input, positive power supply for port 2
− −
AVSS
Note
−
A/D converter ground potential. Make the same potential as
V
SS.
− −
SEG0 to SEG3 Output COM4 to COM7
SEG4, SEG5 P100, P101
SEG6 P112/TxD6
SEG7 P113/RxD6
SEG8 to SEG11 P114 to P143
SEG12 to SEG15
Input port
P150 to P153
SEG16 P25/ANI5
Note
SEG17 P24/ANI4
Note
SEG18 P23/ANI3
Note
SEG19 P22/ANI2
Note
SEG20 P21/ANI1
Note
SEG21
Output LCD controller/driver segment signal outputs
Digital input
port
P20/ANI0
Note
COM0 to COM3
−
COM4 to COM7
Output LCD controller/driver common signal outputs Output
SEG0 to SEG3
VLC0 to VLC2
− −
VLC3
−
LCD drive voltage
Input port P40/KR0
BUZ Output Buzzer output Input port
P33/TI000/RTCDIV/
RTCCL/INTP2
INTP0 P120/EXLVI
INTP1
P34/TI52/TI010/
TO00/RTC1HZ
INTP2
P33/TI000/RTCDIV/
RTCCL/BUZ
INTP3
Input
External interrupt request input for which the valid edge
(rising edge, falling edge, or both rising and falling edges)
can be specified
Input port
P31/TOH1
KR0 P40/VLC3
KR3 P12/RxD0/<RxD6>
KR4
Input Key interrupt input Input port
P13/TxD0/<TxD6>
MCGO Output Manchester code output Input port P32/TOH0
Note
μ PD78F041x only.
Remark The functions within arrowheads (< >) can be assigned by setting the input switch control register (ISC).