R5F10DMDCLFB datasheet(37/139 Pages) RENESAS

37 / 139 page

RL78/D1A

2. PIN FUNCTIONS

R01DS0463EJ0120 Rev. 1.20

Page 37 of 135

Mar 31, 2026

2.1.5 128-pin products

Table 2-6. R5F10DSJ, R5F10DSK, R5F10DSL (1/4)

Pin Name

I/O

Function

During

Reset

After

Reset

Alternate Function

P00

I/O

Port 0. 8-bit I/O port.

Input of P01 can be set to schmitt 1 input

buffer.

Input/output can be specified in 1-bit

units.

Use of an on-chip pull-up resistor can be

specified by a software setting.

Ext.: PD

Int.: HZ

Input

CTxD0/TI00/TO00/SEG14

P01

CRxD0/TI01/TO01/SEG15

P02

SO00/TxD0/TI02/TO02/TI12/TO12/SEG16

P03

SI00/RxD0/TI03/TO03/TI13/TO13/SEG17

P04

SCK00/TI04/TO04/TI14/TO14/SEG18

P05

TI05/TO05/TI15/TO15/SEG19

P06

TI06/TO06/TI16/TO16/SEG20

P07

TI07/TO07/TI17/TO17/SEG21

P10

I/O

Port 1. 8-bit I/O port.

Input of P10, P11, and P17 can be set to

schmitt 1 input buffer.

Input/output can be specified in 1-bit

units.

Use of an on-chip pull-up resistor can be

specified by a software setting.

Ext.: PD

Int.: HZ

Input

LTxD1/SCK00/TI10/TO10/INTP4/SEG31

P11

LRxD1/INTPLR1/SI00/RxD0/TI11/TO11/

SEG30

P12

SO00/TxD0/TI12/TO12/INTP2/SEG29

P13

SO01/TI13/TO13/SEG25

P14

LRxD0/INTPLR0/TI14/TO14/SEG24

P15

LTxD0/RTC1HZ/TI15/TO15/SEG23

P16

TI16/TO16/SEG22

P17

TI17/TO17/INTP0/SEG28

P20

I/O

Port 2. 8-bit I/O port.

Can be set to analog input Note

Input/output can be specified in 1-bit

units.

Analog

Input

AVREFP/ANI0

P21

AVREFM/ANI1

P22 to P27

ANI2 to ANI7

P30

I/O

Port 3. 8-bit I/O port.

Input of P31 can be set to schmitt 1 input

buffer.

Output of P30 and P31 can be set to

N-ch open-drain output.

Input/output can be specified in 1-bit

units.

Use of an on-chip pull-up resistor can be

specified by a software setting.

Ext.: PD

Int.: HZ

Input

TI20/TO20/SCL11/SEG6

P31

TI21/TO21/SDA11/SEG7

P32

TI22/TO22/SO00/TxD0/SEG8

P33

TI23/TO23/SI00/RxD0/SEG9

P34

TI24/TO24/SCK00/SEG10

P35

TI25/TO25/SEG11

P36

TI26/TO26/SEG12

P37

TI27/TO27/SEG13

P40

I/O

Port 4. 8-bit I/O port.

Input/output can be specified.

Use of an on-chip pull-up resistor can be

specified by a software setting.

Ext.: HZ

Int.: PU

Input

TOOL0

P41

STOPST/TI04/TO04

P42

Ext.: PD

Int.: HZ

TI10/TO10/SEG7

P43

TI22/TO22/SEG14

P44

TI23/TO23/SEG15

P45

SEG53

P46

DBWR

___________

/SEG27

P47

DBRD

__________

/SEG26

Remark Ext. (external reset): POR reset or pin reset, Int. (internal reset): WDT reset or LVD reset,

PD: Pull down, PU: Pull up, HZ: High impedance

Note Setting digital or analog to each pin can be done in A/D port configuration register (ADPC).

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