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Chapter 2 – DFI PIC-H61 User Manual

Page 24

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Chapter 2 Hardware Installation

Chapter 2

SMBus

SMBus

The SMBus (System Management Bus) connector is used to connect SMBus devices. It is a mul-
tiple device bus that allows multiple chips to connect to the same bus and enable each one to act
as a master by initiating data transfer.

4

1

3V3SB

SMB_DATA

Ground

2

3

SMB_CLK

IrDA Connector

IrDA

The system board is equipped with an IrDA connector for wireless connectivity between your

computer and peripheral devices. The IRDA (Infrared Data Association) specification supports

data transfers of 115K baud at a distance of 1 meter.

The IrDA connector is for connecting an IrDA module. Connect the cable from your IrDA mod-

ule to IrDA connector.

BIOS Setting

Set “UART2 Mode Select” (“Onboard Super IO Device” field) in the Integrated Peripherals sub-

menu of the BIOS to the type of IrDA standard supported by your device.

Driver Installation

You may need to install the proper drivers in your operating system to use the IrDA function.

Refer to your operating system’s manual or documentation for more information.

Note:

The sequence of the pin functions on some IrDA cable may be reversed from the pin

function defined on the system board. Make sure to connect the cable to the IrDA

connector according to their pin functions.

1

3

4

5

5V

IRRX

IRTX