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4 serial port interface – Renesas SuperH M3A-HS86 User Manual

Page 26

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Functional Overview

2.4 Serial Port Interface

Rev.1.0 Feb 06. 2007

2-8

REJ10J0916-0100

2

2.4 Serial Port Interface

The SH7086 included in the M3A-HS86 contains a UART module. In the M3A-HS86, SCI channel 1 is connected to

Serial Port connector J3.

Figure2.4.1 shows the block diagram of serial port interface in the M3A-HS86.


SH7086

DCD

RxD

TxD

DTR

GND

DSR

RTS

CTS

RI

1

2

3

4

5

6

7

8

9

NC

GND

NC

Serial Port

Connector (J3)

RS232C

Driver

PA3/RXD1

PA4/TXD1

VCC

Figure2.4.1 Block Diagram of Serial Port Interface