RL78G13 datasheet(3/46 Pages) RENESAS

No. de pieza	RL78G13

Descripción Electrónicos	Serial Array Unit

PDF	46 Pages

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Fabricante Electrónico	RENESAS [Renesas Technology Corp]

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RL78/G13

Serial Array Unit (UART Communication)

R01AN0459EJ0200

Rev. 2.00

Page 3 of 43

2014.03.24

Specifications

In this application note, UART communication is performed through the serial array unit (SAU). ASCII characters

transmitted from the device on the opposite side are analyzed to make responses.

Table 1.1 shows the peripheral function to be used and its use. Figures 1.1 and 1.2 illustrate UART communication

operation.

Table 1.1

Peripheral Function to be Used and its Use

Peripheral Function

Use

Serial array unit 0

Perform UART communication using the TxD0 pin

(transmission) and the RxD0 pin (reception).

Figure 1.1

UART Reception Timing Chart

Permit operation of UART

Receive data

Reception & shift operation

Receive data

Permit start of UART communication

Shift register 01

Reception completed

SAUEN

RxD0 pin

INTSR0

TSF01

SS01

SE01

SDR01

ST: Start bit

P: Parity bit

SP: Stop bit

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