User`s manual

54 • Extension Modules

5.5 PMC-3534G

 5.5.1 Features

• IRQ and IO address automatically assigned by PCI plug-and-play

• 4 RS-232C communication ports with intelligent buffer

• High speed concurrent communication (max. 115200 bps)

• Suitable for modems, data display, data collection, telecommunication

 5.5.2 Specifications

• Compliant with PCI Spec.2.1

• Serial communication controller:

• 16C550A compatible

• System IO mapping:

• Assigned by PCI BIOS

• Shared IRQ

• Flow control

• Xon/Xoff control

• RTS/CTS control

• Port Capability:

• independent RS-232C compatible ports

• Baud rate: Each port can be configured to 50-115,200 bps

 5.5.3 Pin Assignment

Pin RS-232

1 DCD, Data carrier detect

2 RXD, Receive data

3 TXD, Transmit data

DTR, Data terminal

ready

5 GND, ground

6 DSR, Data set ready

7 RTS, Request to send

8 CTS, Clear to send

9 RI, Ring indicator