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Chapter 2 – DFI HD620-H81 User Manual

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30

Chapter 2 Hardware Installation

Chapter 2

LPC Debug Port

2

1

12

11

The LPC connector is used for the debug function and its pin functions are listed below.

Pins

Pin Assignment

Pins

Pin Assignment

1

CLK

2

LAD1

3

RST#

4

LAD0

5

FRAME#

6

VCC_+3V

7

LAD3

8

GND

9

LAD2

10

x

11

SERIRQ

12

48MHz

2

3

LPC Debug Port

SMBus Connector

The SMBus (System Management Bus) connector is used to connect the SMBus device. It is a

multiple 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.

2

3

SMBus

GND

NC

SMB_DATA

SMB_CLK

SMB_ALERT

+3.3V_Standby

1

2

5

6