R5F10DMDCLFB datasheet(39/139 Pages) RENESAS

39 / 139 page

RL78/D1A

2. PIN FUNCTIONS

R01DS0463EJ0120 Rev. 1.20

Page 39 of 135

Mar 31, 2026

Table 2-6. R5F10DSJ, R5F10DSK, R5F10DSL (3/4)

Pin Name

I/O

Function

During

Reset

After

Reset

Alternate Function

P90

I/O

Port 9. 8-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.

Ext.: PD

Int.: HZ

Input

SM31/TI21/TO21/SEG40

P91

SM32/TI23/TO23/SEG41

P92

SM33/SGOA/TI25/TO25/SEG42

P93

SM34/ZPD34/SGO/SGOF/TI27/TO27/SEG43

P94

SM41/RTC1HZ/TI01/TO01/SEG44

P95

SM42/TI03/TO03/SEG45

P96

SM43/TI05/TO05/SEG46

P97

SM44/ZPD44/TI07/TO07/SEG47

P100

I/O

Port 10. 8-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.

Ext.: PD

Int.: HZ

Input

TI24/TO24/SEG36

P101

TI25/TO25/SEG37

P102

TI26/TO26/SEG38

P103

TI27/TO27/SEG39

P104

TI01/TO01/SEG44

P105

TI02/TO02/SEG45

P106

TI05/TO05/SEG46

P107

TI06/TO06/SEG47

P110

I/O

Port 11. 8-bit I/O port.

Input 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

DBD0/SCK00/TI00/TO00/SEG35

P111

DBD1/SI00/RxD0/TI02/TO02/SEG34

P112

DBD2/SO00/TxD0/TI04/TO04/SEG33

P113

DBD3/TI06/TO06/SEG32

P114

DBD4/TI07/TO07/SEG31

P115

DBD5/TI10/TO10/SEG30

P116

DBD6/TI12/TO12/SEG29

P117

DBD7/TI20/TO20/SEG28

P121

Port 12. 4-bit Input port, 3-bit I/O port.

Input/output of P125 to P127 can be

specified in 1-bit units.

Use of an on-chip pull-up resistor of P125

to P127 can be specified by a software

setting.

Input

P122

X2/EXCLK

P123

XT1

P124

XT2

P125

I/O

Ext.: PD

Int.: HZ

TI12/TO12/SEG25

P126

TI14/TO14/SEG24

P127

TI16/TO16/SEG23

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

PD: Pull down, HZ: High impedance

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