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Copyright © 2009 Future Technology Devices International Limited

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Document Reference No.: FT_000017

VDIP2 Vinculum VNC1L Module Datasheet Version 1.0

Clearance No.: FTDI# 145

3.5 Signal Descriptions - UART Interface

The UART interface I/O pin description of the VNC1L device are shown in Table 3.4

Pin No.

Name

Type

Description

14

TXD

Output

Transmit asynchronous data output

16

RXD

Input

Receive asynchronous data input

17

RTS#

Output

Request To Send Control Output / Handshake signal

18

CTS#

Input

Clear To Send Control Input / Handshake signal

19

DTR#

Output

Data Terminal Ready Control Output / Handshake signal

20

DSR#

Input

Data Set Ready Control Input / Handshake signal

21

DCD#

Input

Data Carrier Detect Control Input

22

RI#

Input

Ring Indicator Contro l Input. When the RemoteakeW up option is

enabled in the EEPROM, taking RI# low can be used to resume the PC

USB Host controller from suspend

23

TXDEN#

Input

Enable Transmit Data for RS485 designs

Table 3.4 - Default I/O Pin Configuration – UART Interface