S124 datasheet(11/98 Pages) RENESAS

11 / 98 page

R01DS0264EU0100 Rev.1.00

Page 11 of 95

Feb 23, 2016

S124

1. Overview

SCI

SCK0, SCK1,

SCK9

I/O

Input/output pins for the clock (clock synchronous mode).

RXD0, RXD1,

RXD9

Input

Input pins for received data (asynchronous mode/clock synchronous

mode).

TXD0, TXD1,

TXD9

Output

Output pins for transmitted data (asynchronous mode/clock synchronous

mode).

CTS0_RTS0,

CTS1_RTS1,

CTS9_RTS9

I/O

Input/Output pins for controlling the start of transmission and reception

(asynchronous mode/clock synchronous mode), active LOW.

SCL0, SCL1,

SCL9

I/O

Input/output pins for the IIC clock (simple IIC).

SDA0, SDA1,

SDA9

I/O

Input/output pins for the IIC data (simple IIC).

SCK0, SCK1,

SCK9

I/O

Input/output pins for the clock (simple SPI).

MISO0, MISO1,

MISO9

I/O

Input/output pins for slave transmission of data (simple SPI).

MOSI0, MOSI1,

MOSI9

I/O

Input/output pins for master transmission of data (simple SPI).

SS0, SS1, SS9

Input

Slave-select input pins (simple SPI), active LOW.

IIC

SCL0, SCL1

I/O

Input/output pins for clock.

SDA0, SDA1

I/O

Input/output pins for data.

SPI

RSPCKA,

RSPCKB

I/O

Clock input/output pin.

MOSIA, MOSIB

I/O

Inputs or outputs data output from the master.

MISOA, MISOB

I/O

Inputs or outputs data output from the slave.

SSLA0, SSLB0

I/O

Input or output pin for slave selection.

SSLA1 to SSLA3,

SSLB1 to SSLB3

Output

Output pin for slave selection.

CAN

CRX0

Input

Receive data.

CTX0

Output

Transmit data.

USBFS

VSS_USB

Input

Ground pins.

VCC_USB_LDO

Input

Power supply pin for USB LDO regulator.

VCC_USB

I/O

Input: Power supply pin for USB transceiver.

Output: USB LDO regulator output pin. This pin should be connected to an

external capacitor.

USB_DP

I/O

D+ I/O pin of the USB on-chip transceiver. This pin should be connected to

the D+ pin of the USB bus.

USB_DM

I/O

D– I/O pin of the USB on-chip transceiver. This pin should be connected to

the D– pin of the USB bus.

USB_VBUS

Input

USB cable connection monitor pin. This pin should be connected to VBUS

of the USB bus. The VBUS pin status (connected or disconnected) can be

detected when the USB module is operating as a function controller.

Analog power supply

AVCC0

Input

Analog voltage supply pin for the analog. Connect this pin to VCC.

AVSS0

Input

Analog ground pin. Connect this pin to VSS.

VREFH0

Input

Analog reference voltage supply pin for the A/D converter. Connect this pin

to VCC when not using the A/D converter.

VREFL0

Input

Analog reference ground pin for the A/D converter. Connect this pin to VSS

when not using the A/D converter.

Table 1.14

Pin functions (2/3)

Function

Signal

I/O

Description

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