To Next Page

To Previous Page

SBC-GX1 Technical Manual Detailed hardware description

PCI bus interface

The PCI bus signals are PCI 2.1 compliant and can be used to interface to 32-bit

33MHz compatible cards. The PCI interface only supports +5V and Universal PCI

cards. When inserting a PCI card the correct orientation should be observed, otherwise

damage may occur. The PCI card bracket should be in line with the keyboard and

mouse connectors, and should overhang the PCB. If the bracket is not fitted please

verify that the card is orientated correctly.

Serial ports

There are four high speed 16550 serial UART’s on the SBC-GX1. All four channels are

fully software compatible with the 16550 and can be used as standard RS232 serial

interfaces. The table below shows the configuration for each channel:

Connector

Port

I/O Address

IRQ

RS232 RS422/485

COM1 3F8-3FFH IRQ4 PL19 N/A

COM2 2F8-2FFH IRQ3 PL18 N/A

COM3 3E8-3EFH IRQ4 (or IRQ11) PL6 N/A

COM4 2E8-2EFH IRQ3 (or IRQ10) PL10 PL14

The RS232 signals are routed to 10-way 0.1” boxed headers, which are designed to

provide direct connection to 9-way D-type plugs. The serial ports provide support for

various baud rates up to a maximum of 115Kbaud. The Award BIOS detects the serial

ports during the POST process and configures the baud rate, data, stop bits, etc.

The table above provides details of the IRQ signal associated with each channel. If the

standard IRQ3 and IRQ4 assignments are used then only one of the channels can be

configured to use each interrupt. If your system requires more than two interrupts then

the other ports can be configured to use IRQ10 and IRQ11. These interrupts may be

assigned to PCI devices during the Plug and Play BIOS initialization. Therefore you

should select Legacy ISA for these interrupts in the

PNP / PCI configuration setup

screen – see page 38

for details.

RS422/485 interfaces

The COM4 serial interface can be used to support RS232/RS422 and RS485

interfaces. The default configuration has been selected to enable RS232 operation.

Arcom SBC-GX1 User Manual

Other manuals for Arcom SBC-GX1