UPD78F0411GA-GAM-AX Datasheet, PDF (29/564 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

CHAPTER 2 PIN FUNCTIONS
2.1 Pin Function List
There are three types of pin I/O buffer power supplies: AVREF^Note, VLC0, and VDD. The relationship between these
power supplies and the pins is shown below.
Table 2-1. Pin I/O Buffer Power Supplies
Power Supply
AVREF^Note
VLC0
VDD
Corresponding Pins
P20 to P25
COM0 to COM7, SEG0 to SEG21, VLC0 to VLC3
Pins other than above
Note μPD78F041x only. The power supply is VDD with μPD78F040x.
(1) Port pins
Function Name
P12
P13
I/O
I/O
P20
I/O
P21
P22
P23
P24
P25
P31
I/O
P32
P33
P34
Function
Port 1.
2-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 2.
6-bit I/O port.
Input/output can be specified in 1-bit units.
Port 3.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
P40
I/O
Port 4.
1-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
(1/2)
After Reset Alternate Function
Input port RxD0/KR3/<RxD6>
TxD0/KR4/<TxD6>
Digital
input port
Input port
Input port
SEG21/ANI0^Note
SEG20/ANI1^Note
SEG19/ANI2^Note
SEG18/ANI3^Note
SEG17/ANI4^Note
SEG16/ANI5^Note
TOH1/INTP3
TOH0/MCGO
TI000/RTCDIV/
RTCCL/BUZ/INTP2
TI52/TI010/TO00/
RTC1HZ/INTP1
VLC3/KR0
Note μPD78F041x only.
Remark The functions within arrowheads (< >) can be assigned by setting the input switch control register (ISC).
User’s Manual U18698EJ1V0UD
27