R5F10CMDCLFB datasheet(28/139 Pages) RENESAS

28 / 139 page

RL78/D1A

2. PIN FUNCTIONS

R01DS0463EJ0120 Rev. 1.20

Page 28 of 135

Mar 31, 2026

The setting of I/O, buffer and pull-up resistor in each port is also valid for alternate functions.

2.1.1 48-pin products

Table 2-2. Port Pins for R5F10CGB, R5F10CGC, R5F10CGD, R5F10DGC, R5F10DGD, R5F10DGE (1/2)

Pin Name

I/O

Function

During

Reset

After

Reset

Alternate Function

P00

I/O

Port 0. 2-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

TI00/TO00/CTxD0/SEG14Note1

P01

TI01/TO01/CRxD0/SEG15Note1

P10

I/O

Port 1. 5-bit I/O port.

Input of P10 and P11 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/TI11/TO11/SEG30

P12

SO00/TI12/TO12/INTP2/SEG29

P13

SO01/TI13/TO13/SEG25

P14

TI14/TO14/SEG24

P20

I/O

Port 2. 5-bit I/O port.

Can be set to analog input Note2

Input/output can be specified in 1-bit units.

Analog

Input

AVREFP/ANI0

P21

AVREFM/ANI1

P22

ANI2

P23

ANI3

P27

ANI7

P30

I/O

Port 3. 3-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

P33

TI23/TO23/SEG9

P40

I/O

Port 4. 1-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

P54

I/O

Port 5. 4-bit I/O port.

Input of P55 to P57 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

TI14/TO14/SO01/SEG2

P55

TI15/TO15/SI01/SEG3

P56

TI16/TO16/SCK01/SEG4

P57

TI17/TO17/SEG5

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

Notes 1. CTxD0 and CRxD0 are not provided for R5F10CGD, R5F10CGC and R5F10CGB with no CAN channel.

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

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