VIA Technologies EPIA Mini-ITX Mode d’emploi

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

1045 Mission Cout. 8th. Fl., No. 533

Fremont, CA 94539 Chung-cheng Rd.,Hsin-tien

USA Taipei, Taiwan, R.O.C.

TEL: 1-510-683-3300 FAX: 1-510-683-3301 TEL: 886-2-2218-5452 FAX: 886-2-2218-5453

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VIA EPIA Mini-ITX Mainboard

Operation Guidelines

Ultra compact mainboard with a unparalleled level of

integration for the next generation of small footprint, low

power Digital Information Devices and Entertainment

Systems

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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Date: April 17, 2002

1. Introduction:

Offering the choice of a VIA Eden™ESP processor for fanless systems with power sensitive

requirements, or a VIA C3™E-Series processor for more multimedia rich applications, the highly

integrated VIA EPIA Mini-ITX mainboard features integrated 3D graphics, AC’97 audio, Ethernet,

USB and TV-Out connectivity. Measuring only 170mm x 170mm, it is the perfect platform for

developing the next generation of small footprint Digital Information Appliances and Entertainment

Devices.

This document is intended for System Integrators and design engineers designing or assembling

systems based around the VIA EPIA Mini-ITX mainboard.

2. Specifications:

PCB size •170 mm * 170 mm with 4 layers

CPU Type •Embedded VIA CPU: VIA Eden™ESP 5000 processor or

VIA C3™800MHz processor

•Internal L1 128KB and L2 64KB cache memory

Chipset •VIA Apollo PLE133 (VT8601A north bridge & VT8231 south

bridge)

Display •Integrated Trident Blade 3D graphics core

DRAM •Up to 1GB of PC133/100/66 system memory

•2 168 pin DIMM slots for 64/128/256/512MB of both SDRAM

and VCM

PCI Bus IDE •Dual channel master mode PCI supports four Enhanced IDE

devices

•Ultra DMA 33 / 66 / 100

Audio •VT1612A AC97 Codec

•3 audio jacks: Line-out, Line-in and Mic-in.

LAN •VIA VT6103 Ethernet PHY

•Supports ethernet 10/100

USB •USB 1.1

•Two on-board USB ports and two USB port jumper pins

TV-Out •VT1621 TV Out Controller

•S-Video and Composite output

•Support 640x480, 800x600 NTSC/PAL TV

Keyboard controller •VT8231 Internal keyboard controller, which supports PS/2

keyboard / mouse

Other I/O Ports

•One 15-pin External Monitor Connector

•One 16C550 compliant serial port

•One EPP/ECP compliant parallel port

•One FIR port jumper pin

•One CIR jumper pin

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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Clock generator •ICS 9248 clock generator

Real time clock •Internal RTC in VT8231 with external battery

POWER •Supports ATX compliant power supplies

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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3. Jumper Settings:

3.1 CPU Strapping Function Setting:

1-2 Disable

2-3 Enable

3.2 Auto Reboot Function Setting:

1-2 Disable

2-3 Enable

3.3 Panel Jumper:

3.4 DOC BIOS Select:

1-2 Disable

2-3 Enable

3.5 FIR Module Connector (Reference Designs for FIR module available):

Power LED

HDD LED Power

Switch

Reset

4 Ground

5 IRTX

3 IRRX2

2 IRRX

1 +3V

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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3.6 CIR Module Connector (Reference Designs for CIR module available):

3.7 CD-ROM Line-in Connector:

3.8 Wake up on Modem Connector:

3.9 USB Port 2 & 3 Connector (Reference Design for USB module available):

5 EKBCLK

7 MS_CLK

3 KB_CLK

1 +5V

4 KB_DATA

6 EKBDATA

2 Ground

8 MS_DATA

10 EMDATA

9 EMCLK

3 Ground

4 CD_R

2 Ground

1 CD_L

3 Wake up on Modem

J8 2 Ground

1 5V_SB

6 USB P3 +

4 USB P2 +

3 USB P2 -

1 +5V

7 - OC2

5 USB P3 -

2 Ground

8 -OC3

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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3.10 Clear CMOS:

J10

1-2 Normal

2-3 Clear CMOS

3.11 S/P DIF Output / RCA Video Output Select:

J11

1-2 RCA Video Output

3-4 S/P DIF Output

3.12 VIDEO in Connector (Pins 1-12):

3.12.1 One-to-Two Slot PCI Riser Card Connector (Pins 13, 15, 16 of J12 above)

Reference Design for 1 to 2 slot PCI riser card available

3.13 Host Frequency Select:

J13: Frequency selection for the clock generator jumper setting.

J13

CPU SDRAM PCI 1-2 3-4 5-6 7-8

66 33.33 Open Open Close Close

100 33.33 Open Close Open Close

133 33.33 Close Close Open Open

J12

5 CVD6

7 CVHS

3 CVD7

1 Ground

13 A_D30

15 -GNT2

11 CVVS

9 CVD1

6 CVD5

8 CVD2

4 CVD4

2 CVD0

14 N/A

16 -REQ2

12 CVCLK

10 CVD3

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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4. Connectors:

ITEM FUNCTION

CN1 Audio Connector

CN2 COM Port Connector

CN3 USB Connector and RJ45 Connector

CN4 RCA Video or S/P DIF Jack

CN5 S-Video Jack

CN6LPT Connector

CN7 CRT Connector

CN8 ATX Power Connector

CN9 PS/2 Keyboard Connector and mouse

Connector

IDE1,IDE2 On-board IDE Primary/Secondary

Connectors

FAN1,FAN2 FAN Connectors

5. Mini-ITX Power Supply

The Mini-ITX compliant power supply is designed with several space, energy and noise reduction

features in mind. The typical physical dimensions (see table below) are very compact compared to

other standard power supplies such as ATX. The options of AC 100 –240V and 50 –60Hz auto

switching are fully supported.

Power Supply Length Width Height

Total Area %

smaller

iTX, Mini-ITX 174 mm 73mm 55 mm

ATX 140 mm 150 mm 86 mm 150%

The Mini-ITX power specification uses an industry standard 20-pin main connector to the power

supply as shown below.

1+3V 11 +3V

2+3V 12 NC

3Gnd 13 Gnd

4+5V 14 PWR_ON-

5Gnd 15 Gnd

6+5V 16 Gnd

7Gnd 17 Gnd

8PWR_GD 18 NC

95V_SB 19 +5V

10 +12V 20 +5V

Note: NC = no connection

2010

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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Mini-ITX Switching Power Supply DC Output

Output

Voltage Load Range Peak 3

Sec. Voltage

Tolerance Ripple &

Noise (p-p) Over Voltage

Protection

Min. Max.

5V_SB 0.1A 1.5A 2.0A ±5% 150mV 6.5V

+3V 0.1A 1.0A 1.5A ±5% 100mV 3.8V

+5V 0.1A 6.0A 7.0A ±5% 100mV 6.5V

+12V 0.1A 0.5A 0.8A ±8% 200mV 15.6V

Total Power: Max 47W, Peak 60W

The VIA EPIA Mini-ITX mainboard leverages its highly efficient architectural design to deliver power

consumption to below one watt when running in optimized low voltage mode.

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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6. Diagrams:

6.1 Layout Placement and Connector Location:

North

Bridge

VT8601ASouth

Bridge

VT8231

C3/Eden

Processor

EBGA

VT1621

TV Out

VT1612A

VT6103

LAN

AC97

Codec

ICS

9248

Clock

Generator

DOC

Disk

Chip

BIOS

ROM

Buzzer

Battery CR2032

PS/2

Keyboard

Mouse

LPT Connector

CRT Connector

S-Video

RCA

Video

S/P DIF

LAN

RJ-45

USB 1

USB 0

Line

Out

Line

Mic

COM Port

PCI Slot

FAN 1

FAN 2

J11

1-2 RCA Video

* 3-4 S/P DIF

CD-ROM Line-in

L GG R

Wake up on Modem

J10

Clear CMOS

*1-2 Normal

2-3 Clear

CIR Module

Connector

J12

Video in Connector

FIR Module Connector

DOC BIOS

Select

* 1-2 Disable

2-3 Enable

CPU Strapping

Function Setting

* 1-2 Disable

2-3 Enable

Auto Reboot

Function Setting

* 1-2 Disable

2-3 Enable

Panel Jumper

HDD LED

Power SW

Reset SW

Power LED

USB Port 2 & 3 Connector

DIMM 1

DIMM 2

CN8 ATX Power Connector

IDE 1

IDE 2

J13 Host Frequency Select

1-2 3-4 5-6 7-8

66 MHz

100MHz

133MHz

VIA Technologies, Inc. VIA EPIA Mini-ITX Mainboard

Operation Guidelines

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6.2 Layout Diagram and Mounting Holes

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