User Manual
MIO-5251
Intel® Celeron® J1900 & Atom™ E3825,
3.5" MI/O-Compact SBC, DDR3L,
VGA, HDMI/DP, 48-bit LVDS/eDP,
2GbE, Mini PCIe, mSATA/SD card,
iManager, MIOe
Copyright
The documentation and the software included with this product are copyrighted 2014
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. Information provided in this manual is intended to be accurate and reliable. However, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements of the rights of third parties, which may result from its use.
Acknowledgements
Intel® is a trademark of Intel® Corporation.
AMI is a trademark of American Megatrends, Inc.
IBM, PC, PS/2 and VGA are trademarks of International Business Machines Corporation.
Microsoft Windows®, DirectX® is a registered trademark of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.
For more information on this and other Advantech products, please visit our websites
at:
http://www.advantech.com
http://www.advantech.com/eplatform
For technical support and service, please visit our support website at:
http://support.advantech.com/
This manual is for the MIO-5251.
MIO-5251 User Manual
Part No. 2006525110
Edition 1
Printed in China
September 2014
ii
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of purchase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defective, it will be repaired or replaced at no charge during the warranty period. For outof-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandize
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
iii
MIO-5251 User Manual
Declaration of Conformity
CE
This product has passed the CE test for environmental specifications. Test conditions
for passing included the equipment being operated within an industrial enclosure. In
order to protect the product from being damaged by ESD (Electrostatic Discharge)
and EMI leakage, we strongly recommend the use of CE-compliant industrial enclosure products.
FCC Class A
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Opera- thin of
this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own expense.
Caution! There is a danger of a new battery exploding if it is incorrectly installed.
Do not attempt to recharge, force open, or heat the battery. Replace the
battery only with the same or equivalent type recommended by the manflatterer. Discard used batteries according to the manufacturer's instructions.
Technical Support and Assistance
1.
2.
Visit the Advantech website at http://support.advantech.com where you can find
the latest information about the product.
Contact your distributor, sales representative, or Advantech's customer service
center for technical support if you need additional assistance. Please have the
following information ready before you call:
– Product name and serial number
– Description of your peripheral attachments
– Description of your software (operating system, version, application software,
etc.)
– A complete description of the problem
– The exact wording of any error messages
MIO-5251 User Manual
iv
Packing List
Before you begin installing your card, please make sure that the following materials
have been shipped:

1 x MIO-5251 SBC

1 x SATA Cable 30cm
(p/n: 1700006291)

1 x SATA Power Cable 35cm
(p/n: 1700018785)

1 x Audio Cable 20cm
(p/n: 1700019584)

2 x COM Cable 22cm
(p/n: 1701200220)

1 x Heatsink (19mm)
(p/n: 1960062791T001)

1 x Startup manual
(p/n: 2006525100)

1 x Mini Jumper(10pcs package)
(p/n: 9689000002)

1 x Screw Kit (4pcs screws for miniPCIe)
(p/n: 9666525100E)

1 x SUSIAccess Pro package
(p/n: 968EMLSAP1)
If any of these items are missing or damaged, contact your distributor or sales representative immediately.
Optional MIOe Module
Part Number
MIOe-210-D6A1E
MIOe-220-B3A1E
MIOe-230-L0A1E
MIOe-DB5000-01A1E
MIOe-3674-AE
MIOe-3680-AE
MIOe-PWR1-00E
MIOe-PWR2
Description
4 x RS232/422/485, 2x RS422/485, 8-bit GPIO
3 x Intel® Gigabit Ethernet with PCIe Switch
DisplayPort or 48-bit LVDS, 2 x USB2.0
MI/O extension evaluation board
4-port PoE ports
2-Port CAN-Bus with Isolation Protection
12-24V wide range power module (by cable, not via MIOe)
9-36V wide range power module (by cable, not via MIOe)
Optional Accessories
Part number
1960065073N001
1757003995
1703100264
Description
Heat spreader 16.7mm height
AC-to-DC Adapter 12V/5A, 0-40°C
Internal 1-Port USB cable 22.5cm
v
MIO-5251 User Manual
MIO-5251 User Manual
vi
Contents
Chapter
1
General Information ............................1
1.1
1.2
Introduction ............................................................................................... 2
Specifications ............................................................................................ 2
1.2.1 Functional Specifications .............................................................. 2
1.2.2 OS support.................................................................................... 4
1.2.3 Mechanical Specifications............................................................. 4
1.2.4 Electrical Specifications ................................................................ 4
1.2.5 Environmental ............................................................................... 4
Block Diagram........................................................................................... 5
Board layout: dimensions.......................................................................... 5
Figure 1.1 MIO-5251 Mechanical Drawing (Top Side) ................ 5
Figure 1.2 MIO-5251 Mechanical Drawing (Bottom Side) ........... 6
Figure 1.3 MIO-5251 Mechanical Drawing (Coastline)................ 6
1.3
1.4
Chapter
2
Installation............................................7
2.1
Jumpers & Switches.................................................................................. 8
Table 2.1: Jumpers & Switches ................................................... 8
Connectors................................................................................................ 8
Table 2.2: Connectors ................................................................. 8
Locating Connectors ................................................................................. 9
Figure 2.1 MIO-5251 Connector Locations (Top Side)................ 9
Figure 2.2 MIO-5251 Connector Locations (Bottom Side)........... 9
Setting Jumpers ...................................................................................... 10
2.4.1 Auto Power On Setting (J2) ........................................................ 10
Table 2.3: Auto Power On Setting (J2)...................................... 10
2.4.2 LCD Power (J5) .......................................................................... 10
Table 2.4: LCD Power (J5) ........................................................ 10
2.4.3 Clear CMOS (SW2) .................................................................... 11
Table 2.5: Clear CMOS (SW2) .................................................. 11
2.2
2.3
2.4
Chapter
3
AMI BIOS Setup .................................13
3.1
Entering Setup ........................................................................................ 15
3.1.1 Main Setup.................................................................................. 15
3.1.2 Advanced BIOS Features Setup................................................. 16
3.1.3 Chipset Configuration ................................................................. 29
3.1.4 Security ....................................................................................... 36
3.1.5 Boot............................................................................................. 37
3.1.6 Save & Exit ................................................................................. 38
4
MIOe Installation ................................39
4.1
Quick Installation Guide: ......................................................................... 40
Appendix A
Pin Assignments ...............................41
A.1
A.2
Jumper List.............................................................................................. 42
Connector Pin Definition ......................................................................... 43
Chapter
vii
MIO-5251 User Manual
Appendix B
System Assignments........................ 63
B.1
System I/O Ports..................................................................................... 64
Table B.1: System I/O Ports ...................................................... 64
1st MB Memory Map............................................................................... 64
Table B.2: 1st MB Memory Map ................................................ 64
Interrupt Assignments ............................................................................. 65
Table B.3: Interrupt assignments............................................... 65
B.2
B.3
Appendix C
EC Watchdog Timer Sample Code .. 67
C.1
EC Watchdog Timer sample code .......................................................... 68
MIO-5251 User Manual
viii
Chapter
1
1
General Information
This chapter gives background
information on the MIO-5251.
Sections include:
 Introduction
 Specifications
 Block diagram
 Board layout and dimensions
1.1 Introduction
MIO-5251 is designed using MI/O Extension form factor (compact series, 146 x 102
mm) and powered by the latest generation of Intel® Celeron® J1900 and Atom™
E3825 processors which have low power features but also good performance computing, especially for multimedia capabilities compared to earlier generations. Meanwhile, MIO-5251 offers flexible expansion possibilities: two full-size mini PCIe, 2nd
LVDS through MIOe-230, SD card, SIM holder, MIOe with PCIex1, SMBus,
3xUSB2.0, LPC, line out, DisplayPort, and power interface.
MIO-5251 supports various display interfaces including HDMI/DisplayPort, VGA, 48bit LVDS/eDP, and rich I/O: 2 x GbE, SATA, mSATA/SD card, 4xSerial Ports, USB 3.0
and 4 x USB 2.0.
1.2 Specifications
1.2.1 Functional Specifications

Processor:
– Celeron® J1900 2.0GHz (burst frequency 2.42GHz), Quad Cores, Four
Threads
– Atom™ E3825 1.33GHz, Dual Cores, Two Threads
– Cache Hierarchy
* 32 KB 8-way L1 instruction cache and 24 KB 6-way L1 data cache per core
* 1 MB, 16-way L2 cache, shared per two cores
– Supported C-states: C0, C1, C6, C7
– Advanced Technologies
* Intel® Virtualization Technology (VT-x)
* Intel® 64 Architecture
* Enhanced Intel SpeedStep Technology
* Intel® Trusted Execution Engine (TXE)
– Power Management
* ACPI 5.0
* System sleep states: S0, S3, S4, S5

System Memory Support
– Non-ECC, DDR3L SODIMM up to 8GB
– 64 bit data bus
– x8 and x16 DDR3L SDRAM device data widths
– DDR3L with 1066 MT/s data rates for E3825, total memory bandwidth 8.5GB/s
– DDR3L with 1333 MT/s data rates for J1900, total memory bandwidth can be
scalable to 21.3GB/s
– Aggressive power management to reduce power consumption

Graphic and Media Engine
– Intel® 7th generation (Gen 7) graphics and media encode/decode engine
– GFX: Normal 688 MHz / Burst 854 MHz for J1900, Normal 533 MHz for
E3825
– Graphic Features:
* 3D HW Acceleration: DirectX11, OpenGL3.2, OpenCL1.2
* HW Video Decode: H.264, MPEG2, MVC, VC-1, WMV9, MJPEG and VP8
* HW Video Encode: H.264, (MPEG2 and MVC only for J1900)
– Multi-display interfaces: VGA, HDMI/DisplayPort (default HDMI), 48-bit
LVDS/eDP (default LVDS). MIOe's DisplayPort interface is shared with DisplayPort on rear I/O.
MIO-5251 User Manual
2
– Specification and Resolution
* VGA: 2560 x 1600 at 60Hz
* HDMI/DisplayPort: HDMI 1.4a with audio, up to 1080P at 60Hz. DisplayPort is
supported standard version 1.1a with audio, up to 2560x1600 at 60Hz
* LVDS/eDP: 48-bit dual channel LVDS up to WUXGA 1920x1200 at 60Hz via

Gigabit Ethernet
– Controller: Intel® i210
* 10/100/1000 BASE-T
* IEEE 802.3az Energy Efficient Ethernet (EEE), which defines Low Power Idle (LPI) state
* IEEE 1588/802.1AS precision time synchronization
* 9.5 KB Jumbo frames supported (Full-duplex)
* Flow Control supported
* Magic packet wake-up enable with unique MAC address

Peripheral interface
– MIOe Expansion
 DisplayPort (Supported by T-P/N due to shared with the DisplayPort on rear I/O)
 1 PCIe x1
 3 USB 2.0
 LPC
 HD Audio: Line out
 SMBus
 Power: +5 Vsb/+12 Vsb, Power On, Reset
– 1 Serial-ATA port, up to 3.0Gb/s transfer rate (300 MB/s), supports independent DMA operation
* SATA Power: 5V / 12V
– 1 x USB 3.0 & 4 x USB2.0
* One USB3.0 and three USB2.0 on rear I/O, one internal USB2.0
* USB3.0 SuperSpeed (SS), implements xHCI software host controller interface
* Multiplexed with EHCI controller that are High-Speed/Full-Speed (HS/FS)
* USB source: USB3.0 and USB2.0's dual port on rear I/O's USB signal directly
from CPU, USB2.0 dual port on rear I/O + internal USB + mini PCIe from USB
hub1, mSATA + 3xUSB3.0 for MIOe from USB hub2
* Support wake-up from sleeping state S3
* Power supply: 0.5A @ 5V for USB2.0, 1A @ 5V for USB3.0
– 2 RS-232 for COM1/2, 2 RS-232/422/485 for COM3/4 (ESD protection: air
gap ±15kV, contact ±8kV
– 8-bit Programmable General Purpose Input/ Output from iManager (5V tolerance)
– 1 SMBus / I2C channel from iManager
– Watchdog timer: Output System Reset, Programmable counter from 1 ~ 255
minutes/ seconds
– Mini PCIe / mSATA
 1 Full-size Mini PCIe with SIM holder (with PCIe and USB interface)
 1 Full-size mSATA (with SATA and USB interface)
 Power supply: 1.1 A @ 3.3 V, 0.375 A @ 1.5 V
3
MIO-5251 User Manual
General Information
CH7511, eDP is supported standard version 1.3 with audio up to
2560 x1600 at 60Hz
* Inverter power: 1A @ 5V/12V
– 3D HW Acceleration: OGL4.0, DirectX 11.1
– HW Video Decode: H.264, MPEG2, VC-1, VP8
– HW Video Encode: H.264, MPEG2 (max at 1080p)
Chapter 1
* Supports Extend/ Clone Mode with multi-display device
* Dual display: any two combination between VGA, HDMI/DisplayPort/MIOe's
DisplayPort, LVDS/eDP
– SD slot: supported by T-P/N, shared the location with mSATA


High Definition Audio:
– Intel® High Definition Audio Interface
– High Definition Audio Codec with Realtek proprietary loss-less content protection technology
– Supports 1 Line-input, 1 Line output, 1 Mic-input
BIOS
– AMI UEFI 64 Mbit, BIOS for 64 or 32bit is different, default version is for 64bit
– Default setting is Legacy boot, that can be manually changed to UEFI boot. If
default setting to UEFI is needed, that can be done by T-P/N
1.2.2 OS support
MIO-5251 supports Win8, Win7, WES8, WES7, WEC7, Linux kernel 3.x, VxWorks
6.9.3.3, Android Kit Kat 4.4
Win7 only supports Legacy mode and Win8 for UEFI mode.
For further information about OS support of MIO-5251, please Advantech website:
http://support.advantech.com.tw/ or contact the technical support center.
1.2.3 Mechanical Specifications



Dimensions: 146 x 102 mm (5.7 x 4 inches)
Height: top side 19mm, PCB 1.6mm, bottom side 6.8mm, total 27.4mm
Weight: 0.5 kg (reference weight of total package)
1.2.4 Electrical Specifications


Power Requirement: Single +12V DC ± 10% power input
Power Consumption:
– Max load
* MIO-5251J-U0A1E: 1.16A @ 12V (13.92W)
* MIO-5251E-S3A1E: 0.81A @ 12V (9.72W)
– Idle mode
* MIO-5251J-U0A1E: 0.62A @ 12V (7.44W)
* MIO-5251E-S3A1E: 0.42A @ 12V (5.04W)


Power Consumption Conditions:
– Test software: 3DMark 2006
– Max. load: Measure the maximum current value which system under maximum load (CPU: Top speed, RAM &Graphic: Full loading)
– Idle mode: Measure the current value when system in windows mode and
without running any program
RTC Battery:
– Typical Voltage: 3.0 V
– Normal discharge capacity: 210 mAh
1.2.5 Environmental




Operating temperature: 0 ~ 60°C (32 ~ 140°F)
Operating Humidity: 40°C @ 85% RH Non-Condensing
Storage Temperature: Storage temperature: -40~85°C
Storage Humidity: Relative humidity: 95% @ 60°C
MIO-5251 User Manual
4
Chapter 1
1.3 Block Diagram
General Information
65.50
64.27
59.19
46
39.85
28.45
27
25.02
17.30
12.11
8.34
5.18
3.30
0
122.38
146
142.70
140.66
1.4 Board layout: dimensions
102
98.70
102
97.05
92.70
70.10
86.70
76
60.13
51.67
27.20
27.73
20.50
11.06
8.37
15.19
6.50
3.30
0
34.06
65.50
56.10
69.96
85.70
99.56
119.70
0
146
142.70
142.48
137.70
0
Figure 1.1 MIO-5251 Mechanical Drawing (Top Side)
5
MIO-5251 User Manual
146
128.63
107.63
112.43
89.93
77.65
0
5.58
102
102
84.03
85.94
2-M2-NUT
68.51
51.63
49.68
3.20
6-Ø
6-Ø 6
.4
LE
HO
0 PA
D
146
107.55
54.66
0
0
0
Figure 1.2 MIO-5251 Mechanical Drawing (Bottom Side)
30
Ø
Ø
5.
25
3
156.14
Figure 1.3 MIO-5251 Mechanical Drawing (Coastline)
MIO-5251 User Manual
6
Chapter
2
2
Installation
This chapter explains the setup
procedures of the MIO-5251 hardware, including instructions on
setting jumpers and connecting
peripherals, switches and indicators. Be sure to read all safety precautions before you begin the
installation procedure.
2.1 Jumpers & Switches
The MIO-5251 has a number of jumpers that allow you to configure your system to
suit your application. The table below lists the functions of the various jumpers.
Table 2.1: Jumpers & Switches
J2
Auto Power On
J5
LCD Power
SW2
Clear CMOS
2.2 Connectors
Onboard connectors link the MIO-5251 to external devices such as hard disk drives,
a keyboard, or floppy drives. The table below lists the function of each of the connectors.
Table 2.2: Connectors
Label
Function
CN1
12V Power Input
CN4
SD Card
CN6
SODIMM
CN7
Power Switch
CN9
Reset
CN10
GPIO
CN11
VGA
CN12
HDMI (Optional DP)
CN13
SATA Power
CN14
SATA
CN15
Mini PCIe
CN16
mSATA
CN17
SIM Holder
CN18
External USB2.0
CN19
External USB3.0+USB2.0
CN20
COM1/2: RS-232
CN21
COM3/4: RS-232/422/485
CN24
GbE
CN27
Audio
CN29
MIOe
CN30
Inverter Power
CN31
LVDS
CN32
eDP
CN33
SMBus/I2C
CN34
Internal USB2.0
FAN1
System Fan
MIO-5251 User Manual
8
Chapter 2
2.3 Locating Connectors
Installation
Figure 2.1 MIO-5251 Connector Locations (Top Side)
Figure 2.2 MIO-5251 Connector Locations (Bottom Side)
9
MIO-5251 User Manual
2.4 Setting Jumpers
You may configure your card to match the needs of your application by setting jumpers. A jumper is a metal bridge used to close an electric circuit. It consists of two
metal pins and a small metal clip (often protected by a plastic cover) that slides over
the pins to connect them. To “close” a jumper, you connect the pins with the clip. To
“open” a jumper, you remove the clip. Sometimes a jumper will have three pins,
labeled 1, 2 and 3. In this case you would connect either pins 1 and 2, or 2 and 3.
The jumper settings are schematically depicted in this manual as follows:
open
closed
closed 2-3
A pair of needle-nose pliers may be helpful when working with jumpers. If you have
any doubts about the best hardware configuration for your application, contact your
local distributor or sales representative before you make any changes. Generally, you
simply need a standard cable to make most connections.
2.4.1 Auto Power On Setting (J2)
Table 2.3: Auto Power On Setting (J2)
Setting
Function
(Open)
Power Button for Power On
(Close)*
Auto Power On
* Default
2.4.2 LCD Power (J5)
Table 2.4: LCD Power (J5)
Setting
Function
(1-3)*
+3.3V
(3-5)
+5V
(3-4)
+12V
MIO-5251 User Manual
10
Chapter 2
2.4.3 Clear CMOS (SW2)
Table 2.5: Clear CMOS (SW2)
Installation
Setting
Function
(1)*
Normal
(3)
Clear CMOS
11
MIO-5251 User Manual
MIO-5251 User Manual
12
Chapter
3
AMI BIOS Setup
3
AMIBIOS has been integrated into a plethora of motherboards for decades. With the
AMIBIOS Setup program, you can modify BIOS settings and control the various system features. This chapter describes the basic navigation of the MIO-5251 BIOS
setup screens.
AMI BIOS ROM has a built-in Setup program that allows users to modify the basic
system configuration. This information is stored in battery-backed CMOS so it retains
the Setup information when the power is turned off.
MIO-5251 User Manual
14
Turn on the computer and check for the patch code. If there is a number assigned to
the patch code, it means that the BIOS supports your CPU. If there is no number
assigned to the patch code, please contact an Advantech application engineer to
obtain an up-to-date patch code file. This will ensure that your CPU‘s system status is
valid. After ensuring that you have a number assigned to the patch code, press
<DEL> and you will immediately be allowed to enter Setup.
When you first enter the BIOS Setup Utility, you will encounter the Main setup screen.
You can always return to the Main setup screen by selecting the Main tab. There are
two Main Setup options. They are described in this section. The Main BIOS Setup
screen is shown below.
The Main BIOS setup screen has two main frames. The left frame displays all the
options that can be configured. Grayed-out options cannot be configured; options in
blue can. The right frame displays the key legend.
Above the key legend is an area reserved for a text message. When an option is
selected in the left frame, it is highlighted in white. Often a text message will accompany it.
 System time / System date
Use this option to change the system time and date. Highlight System Time or
System Date using the <Arrow> keys. Enter new values through the keyboard.
Press the <Tab> key or the <Arrow> keys to move between fields. The date
must be entered in MM/DD/YY format. The time must be entered in HH:MM:SS
format.
15
MIO-5251 User Manual
AMI BIOS Setup
3.1.1 Main Setup
Chapter 3
3.1 Entering Setup
3.1.2 Advanced BIOS Features Setup
Select the Advanced tab from the MIO-5251 setup screen to enter the Advanced
BIOS Setup screen. You can select any of the items in the left frame of the screen,
such as CPU Configuration, to go to the sub menu for that item. You can display an
Advanced BIOS Setup option by highlighting it using the <Arrow> keys. All Advanced
BIOS Setup options are described in this section. The Advanced BIOS Setup
screens is shown below. The sub menus are described on the following pages.
MIO-5251 User Manual
16
Chapter 3
3.1.2.1 ACPI Settings
AMI BIOS Setup




Enable ACPI Auto Configuration
Enable or disable BIOS ACPI auto configuration.
Enable Hibernation
Enables or Disables System ability to Hibernate (OS/S4 Sleep State). This
option may be not effective with some OS.
ACPI Sleep State
Select the highest ACPI sleep state the system will enter when the SUSPEND
button is pressed.
Lock Legacy Resources
Enables or Disables Lock of Legacy Resources
17
MIO-5251 User Manual
3.1.2.2 Super I/O Configuration




Serial Port 1 Configuration
Set Parameters of Serial Port 1 (COMA).
Serial Port 2 Configuration
Set Parameters of Serial Port 2 (COMB).
Serial Port 3 Configuration
Set Parameters of Serial Port 3 (COMC).
Serial Port 4 Configuration
Set Parameters of Serial Port 4 (COMD).
MIO-5251 User Manual
18
Chapter 3
3.1.2.3 Embedded Controller Configuration
AMI BIOS Setup





EC Hardware Monitor
This page display all information about system Temperature/Voltage/Current.
iManager WatchDog IRQ
This item allows users to set the IRQ number of EC watchdog.
Backlight Enable Polarity
This item allows users to set backlight mode.
EC Power Saving Mode
This item allows users to set board’s power saving mode when off.
EC Watch Dog Function
This item allows users to select EC watchdog timer.
19
MIO-5251 User Manual
3.1.2.4 S5 RTC Wake Settings

Wake system from S5
Enable or disable System wake on alarm event. Select FixedTime, system will
wake on the hr::min::sec specified.
MIO-5251 User Manual
20
Chapter 3
3.1.2.5 Serial Port Console Redirection
AMI BIOS Setup


Console Redirection
This item allows users to enable or disable console redirection for Microsoft
Windows Emergency Management Services (EMS).
Console Redirection
This item allows users to configuration console redirection detail settings.
21
MIO-5251 User Manual
3.1.2.6 CPU Configuration






Limit CPUID Maximum
Disabled for Windows XP.
Execute Disable Bit
XD can prevent certain classes of malicious buffer overflow attacks when combined with a supporting OS (Windows Server 2003 SP1, Windows XP SP2,
SuSE Linux 9.2, RedHat Enterprise 3 Update 3.)
Hardware Prefetcher
Enable the mid level cache(L2) streamer prefetcher.
Adjacent Cache Line Prefetch
Enable the mid level cache(L2) prefetching of adjacent cache lines.
Intel Virtualization Technology
When enabled, a VMM can utilize the additional hardware capabilities provided
by Vanderpool Technology.
Power Technology
Enable the power management features.
MIO-5251 User Manual
22
Chapter 3
3.1.2.7 PPM Configuration
AMI BIOS Setup



CPU C state Report
Enable/Disable CPU C state report to OS.
Max CPU C-state
This option controls Max C state that the processor will support.
S0ix
Enable/Disable CPU S0ix state.
23
MIO-5251 User Manual
3.1.2.8 IDE Configuration






Serial-ATA (SATA)
Enable / Disable Serial ATA.
SATA Speed Support
SATA Speed Support Gen1 or Gen2.
SATA ODD Port
SATA ODD is Port0 or Port1.
SATA Mode
Select IDE / AHCI.
Serial-ATA Port 0 / Port1
Enable / Disable Serial ATA Port0 / Port1.
SATA Port 0 / Port1 HotPlug
Enable / Disable SATA Port0 / Port1 hotplug function.
MIO-5251 User Manual
24
Chapter 3
3.1.2.9 CSM Configuration
AMI BIOS Setup









CSM Support
Enable/Disable CSM Support.
GateA20 Active
UPON REQUEST - GA20 can be disabled using BIOS services. ALWAYS - do
not allow disabling GA20; this option is useful when any RT code is executed
above 1MB.
Option ROM Messages
Set display mode for Option ROM.
INT19 Trap Response
BIOS reaction on INT19 trapping by Option ROM: IMMEDIATE - execute the
trap right away; POSTPONED - execute the trap during legacy boot.
Boot option filter
This option controls Legacy/UEFI ROMs priority.
Network
Controls the execution of UEFI and Legacy PXE OpROM.
Storage
Controls the execution of UEFI and Legacy Storage OpROM.
Video
Controls the execution of UEFI and Legacy Video OpROM.
Other PCI devices
Determines OpROM execution policy for devices other than Network, Storage,
or Video.
25
MIO-5251 User Manual
3.1.2.10 Trusted Computing

Trusted Computing
Enables or Disables BIOS support for security device. O.S. will not show Security Device. TCG EFI protocol and INT1A interface will not be available.
MIO-5251 User Manual
26
Chapter 3
3.1.2.11 USB Configuration
AMI BIOS Setup







Legacy USB Support
Enables Legacy USB support. AUTO option disables legacy support if no USB
devices are connected. DISABLE option will keep USB devices available only
for EFI applications.
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The XHCI ownership change should be claimed by XHCI driver.
EHCI Hand-Off
This is a workaround for OSes without EHCI hand-off support. The EHCI ownership change should claim by EHCI driver.
USB Mass Storage Driver Support
Enable/Disable USB Mass Storage Driver Support.
USB transfer time-out
Time-out value for control, Bulk, and interrupt transfers.
Device reset time-out
USB mass storage device start unit command time-out.
Device power-up delay
Maximum time the device will take before it properly reports itself to the Host
Controller. 'Auto' uses default value: for a Root port it is 100 ms, for a Hub port
the delay is taken from Hub descriptor.
27
MIO-5251 User Manual
3.1.2.12 Security Configuration





TXE
TXE HMRFPO Disable
TXE Firmware Update
TXE EOP Message
Send EOP Message Before Enter OS
TXE Unconfiguration Perform
Revert TXE settings to factory defaults
MIO-5251 User Manual
28
Chapter 3
3.1.3 Chipset Configuration
AMI BIOS Setup


North Bridge
Details for North Bridge items.
South Bridge
Details for South Bridge items.
29
MIO-5251 User Manual
3.1.3.1 North Bridge


Intel IGD Configuration
Config Intel IGD Settings.
Max TOLUD
Maximum Value of TOLUD.
MIO-5251 User Manual
30
Chapter 3
3.1.3.2 Intel IGD Configuration
AMI BIOS Setup









Primary IGFX Boot Display
Select the Video Device which will be activated during POST. This has no effect
if an external graphics present. Secondary boot display selection will appear
based on your selection. VGA modes will be supported only on primary display.
LVDS Panel Type
This item allow user to select LVDS panel type.
DVMT Pre-Allocated
Select DVMT 5.0 Pre-Allocated (Fixed) Graphics Memory size used by the
Internal Graphics Device.
DVMT Total Gfx Mem
Select DVMT 5.0 Total Graphic Memory size used by the Internal Graphics
Device.
Aperture Size
Select the Aperture Size.
DOP CG
Enable/Disable DOP clock gating.
GTT Size
Select the GTT Size
IGD Thermal
Enable/Disable IGD Thermal.
Spread Spectrum clock
Enable/Disable Spread Spectrum clock.
31
MIO-5251 User Manual
3.1.3.3 South Bridge











Azalia HD Audio
Azalia HD Audio Options.
USB Configuration
USB Configuration Settings.
PCI Express Configuration
PCI Express Configuration settings.
High Precision Timer
Enables or disables the high precision timer.
LAN1 Controller
Enable or Disable the LAN1.
LAN2 Controller
Enable or Disable the LAN2.
PCIE Wake
Enable or Disable PCIE to wake the system from S5.
Restore AC Power Loss
Select AC power state when power is re-applied after a power failure.
Serial IRQ Mode
Configure Serial IRQ Mode.
Global SMI Lock
Enable or Disable SMI lock.
BIOS Read/Write Protection
Enable or Disable BIOS SPI region read/write protect.
MIO-5251 User Manual
32
Chapter 3
3.1.3.4 Azalia HD Audio
AMI BIOS Setup




Audio Controller
Control Detection of the Azalia device. Disabled = Azalia will be unconditionally
disabled. Enabled = Azalia will be unconditionally Enabled. Auto = Azalia will
be enabled if present disabled otherwise.
Azalia HDMI Codec
Enable/Disable internal HDMI codec for Azalia
HDMI Port B
Enable/Disable HDMI Port B
HDMI Port C
Enable/Disable HDMI Port C
33
MIO-5251 User Manual
3.1.3.5 USB Configuration




OS Selection
OS Selection to choose Windows 8.X / Windows 7.
XHCI Mode
Mode of operation of xHCI controller.
USB 2.0(EHCI) Support
Control the USB EHCI (USB 2.0) functions. One EHCI controller must always be
enabled.
USB Per Port Control
Control each of the USB ports (0~3). Enable: Enable USB per port; Disable: Use
USB port X settings.
MIO-5251 User Manual
34
Chapter 3
3.1.3.6 PCI Express Configuration
AMI BIOS Setup


PCI Express Port0 / Port2
Enable or Disable the PCI Express Port0 / Port 2 in the Chipset.
Speed
Configure PCIe Port Speed.
35
MIO-5251 User Manual
3.1.4 Security
Select Security Setup from the MIO-5251 Setup main BIOS setup menu. All Security
Setup options, such as password protection and virus protection are described in this
section. To access the sub menu for the following items, select the item and press
<Enter>:
 Change Administrator / User Password
Select this option and press <ENTER> to access the sub menu, and then type
in the password.
MIO-5251 User Manual
36
Chapter 3
3.1.5 Boot
AMI BIOS Setup




Setup Prompt Timeout
Number of seconds that the firmware will wait before initiating the original
default boot selection. A value of 0 indicates that the default boot selection is to
be initiated immediately on boot. A value of 65535(0xFFFF) indicates that firmware will wait for user input before booting. This means the default boot selection is not automatically started by the firmware.
Bootup NumLock State
Select the keyboard NumLock state.
Quiet Boot
Enables or disables Quiet Boot option.
Boot Option #1
Sets the system boot order.
37
MIO-5251 User Manual
3.1.6 Save & Exit










Save Changes and Exit
This item allows you to exit system setup after saving the changes.
Discard Changes and Exit
This item allows you to exit system setup without saving any changes.
Save Changes and Reset
This item allows you to reset the system after saving the changes.
Discard Changes and Reset
This item allows you to rest system setup without saving any changes.
Save Changes
This item allows you to save changes done so far to any of the options.
Discard Changes
This item allows you to discard changes done so far to any of the options.
Restore Defaults
This item allows you to restore/load default values for all the options.
Save as User Defaults
This item allows you to save the changes done so far as user defaults.
Restore User Defaults
This item allows you to restore the user defaults to all the options.
Boot Override
Boot device select can override your boot priority.
MIO-5251 User Manual
38
Chapter
4
MIOe Installation
4
The MI/O compact form factor SBC is a new-generation SBC design with a variety of
mechanical improvements. Here is the quick installation guide for our thermal design
and MIOe module installation.
4.1 Quick Installation Guide:
1.
There is a Heatsink / Cooler in the white box inside the package. Carefully
remove the release paper from the thermal pad before installation.
Remove Release Paper
PAD XR-Pe 13.9x13.9x1mm
2.
There are six screws and six studs inside the white box, please install the heatsink into place as per illustration below:
MIO-5251 User Manual
40
Appendix
A
A
Pin Assignments
This appendix contains information of a detailed or specialized
nature.
Sections include:
 Jumper and Connector Tables
A.1 Jumper List
J2
Auto Power On Setting
Part Number
1653002101
Footprint
HD_2x1P_79_D
Description
PIN HEADER 2*1P 180D(M)SQUARE 2.0mm DIP W/O Pb
Setting
Function
NC
Power Button for Power On
(1-2)*
Auto Power On
J5
LCD Power
Part Number
1653003260
Footprint
HD_3x2P_79
Description
PIN HEADER 3x2P 2.0mm 180D(M) SMD 21N22050
Setting
Function
(1-3)*
+3.3V
(3-5)
+5V
(3-4)
+12V
SW2
Clear CMOS
Part Number
1600000071
Footprint
SW_3P_CJS-1201TA1
Description
CJS-1201TA1
Pin
Pin Name
1
NC
2
RTC_TEST#
3
GND
MIO-5251 User Manual
42
CN1
12V Power Input
Part Number
1655003865
Footprint
WF_2x2P_165_BOX_RA_D_740SP
Description
ATX PWRCONN 2x2P 4.2mm 90D(M) DIP 740-77-04TS50
Pin
Pin Name
1
GND
2
GND
3
+12V
4
+12V
CN4
SD Card
Part Number
1654010952-01
Footprint
SDCARD_15P_SDC5-15M1-KNM0-0
Description
SD Card 15P SMD G/F SDC5-15M1-KNM0-01
Pin
Pin Name
1
DAT3
2
CMD
3
VSS1
4
VDD
5
CLK
6
VSS2
7
DAT0
8
DAT1
9
DAT2
10
NC
11
NC
12
NC
13
NC
14
SD3_CD#
15
SD3_WP
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MIO-5251 User Manual
Appendix A Pin Assignments
A.2 Connector Pin Definition
CN6
SODIMMDDR3_204
Part Number
1651002088
Footprint
SODIMMDDR3_204P_AS0A626-HA
Description
DDR3 SODIMM H=9.2mm 204P SMD AS0A626-HASN-7H
CN7
Power Switch
Part Number
1655302020
Footprint
WF_2P_79_BOX_R1_D
Description
WAFER BOX 2P 2.0mm 180D(M) DIP A2001WV2-2P
Pin
Pin Name
1
PSIN
2
GND
CN9
Reset
Part Number
1655302020
Footprint
WF_2P_79_BOX_R1_D
Description
WAFER BOX 2P 2.0mm 180D(M) DIP A2001WV2-2P
Pin
Pin Name
1
RESET#
2
GND
MIO-5251 User Manual
44
GPIO
Part Number
1653004099
Footprint
HD_5x2P_79_23N685B-10M10
Description
BOX HEADER 5x2P 2.00mm 180D(M) SMD 23N685B-10M10
Pin
Pin Name
1
+5V
2
GPIO4
3
GPIO0
4
GPIO5
5
GPIO1
6
GPIO6
7
GPIO2
8
GPIO7
9
GPIO3
10
GND
CN11
VGA
Part Number
1654000055
Footprint
DBVGA-VF5MS
Description
D-SUB Conn. 15P 90D(F) DIP 070242FR015S200ZU
Pin
Pin Name
1
RED
2
GREEN
3
BLUE
4
NC
5
GND
6
GND
7
GND
8
GND
9
NC
10
GND
11
NC
12
DDAT
13
HSYNC
14
VSYNC
15
DCLK
45
MIO-5251 User Manual
Appendix A Pin Assignments
CN10
CN12
HDMI/DP
Part Number
1654010203
Footprint
HDMICON_21P_845-002-217CRL
Description
HDMI+DISPLAY Conn. 20P 90D(M) DIP 845-002-217CRL
Pin
Pin Name
1
ML_Lane0(p)/TMDS Data2+
2
GND/TMDS Data2 Shield
3
ML_Lane0(n)/TMDS Data2–
4
ML_Lane1(p)/TMDS Data1+
5
GND/TMDS Data1 Shield
6
ML_Lane1(n)/TMDS Data1–
7
ML_Lane2(p)/TMDS Data0+
8
GND/TMDS Data0 Shield
9
ML_Lane2(n)/TMDS Data0–
10
ML_Lane3(p)/TMDS Clock+
11
GND/TMDS Clock Shield
12
ML_Lane3(n)/TMDS Clock–
13
CONFIG1/Reserved
14
CONFIG2/Reserved
15
AUX CH(p)/SCL
16
GND/SDA
17
AUX CH(n)/DDC Ground
18
Hot Plug Detect/+5V Power
19
GND/Hot Plug Detect
20
+3.3V
MIO-5251 User Manual
46
SATA Power
Part Number
1655001154
Footprint
WF_4P_98_BOX_R1_D
Description
WAFER BOX 4P 2.50mm 180D(M) DIP 24W1170-04S10-01
Pin
Pin Name
1
+5V
2
GND
3
GND
4
+12V
CN14
SATA
Part Number
1654007578
Footprint
SATA_7P_WATF-07DBN6SB1U
Description
Serial ATA 7P 1.27mm 180D(M) SMD WATF-07DBN6SB1U
Pin
Pin Name
1
GND
2
TX+
3
TX-
4
GND
5
RX-
6
RX+
7
GND
47
MIO-5251 User Manual
Appendix A Pin Assignments
CN13
CN15
Mini PCIE
Part Number
1654002538
Footprint
FOX_AS0B226-S68K7F
Description
MINI PCI E 52P 6.8mm 90D SMD AS0B226-S68Q-7H
Pin
Pin Name
1
WAKE#
2
+3.3VSB
3
NC
4
GND
5
NC
6
+1.5V
7
NC
8
UIM_PWR
9
GND
10
UIM_DATA
11
REFCLK-
12
UIM_CLK
13
REFCLK+
14
UIM_RESET
15
GND
16
UIM_VPP
17
NC
18
GND
19
NC
20
W_DISABLE#
21
GND
22
PERST#
23
PERn0
24
+3.3VSB
25
PERp0
26
GND
27
GND
28
+1.5V
29
GND
30
SMB_CLK
31
PETn0
32
SMB_DAT
33
PETp0
34
GND
35
GND
36
USB D-
37
GND
38
USB D+
39
+3.3VSB
40
GND
41
+3.3VSB
MIO-5251 User Manual
48
NC
43
SEL
44
NC
45
NC
46
NC
47
NC
48
+1.5V
Appendix A Pin Assignments
42
49
NC
50
GND
51
NC
52
+3.3VSB
CN16
mSATA
Part Number
1654002538
Footprint
FOX_AS0B226-S68K7F
Description
MINI PCI E 52P 6.8mm 90D SMD AS0B226-S68Q-7H
Pin
Pin Name
1
NC
2
+3.3V
3
NC
4
GND
5
NC
6
+1.5V
7
NC
8
NC
9
GND
10
NC
11
NC
12
NC
13
NC
14
NC
15
GND
16
NC
17
NC
18
GND
19
NC
20
NC
21
GND
22
NC
23
B+
24
+3.3V
49
MIO-5251 User Manual
25
B-
26
GND
27
GND
28
+1.5V
29
GND
30
SMB_CLK
31
A-
32
SMB_DAT
33
A+
34
GND
35
GND
36
USB D-
37
GND
38
USB D+
39
+3.3V
40
GND
41
+3.3V
42
NC
43
NC
44
NC
45
NC
46
NC
47
NC
48
+1.5V
49
NC
50
GND
51
NC
52
+3.3V
MIO-5251 User Manual
50
SIM Holder
Part Number
1654010809-01
Footprint
SIM_6P_5210622-SINR03
Description
SIM card conn. 6p 2.54mm 90D(F) SMD 5210622-SINR
Pin
Pin Name
C1
UIM_PWR
C2
UIM_RESET
C3
UIM_CLK
C5
GND
C6
UIM_VPP
C7
UIM_DATA
CN18
External USB
Part Number
1654009513
Footprint
USB_8P_UB1112C-8FDE-4F
Description
USB CONN. 8P 2.0mm 90D DIP UB1112C-8FDE-4F
Pin
Pin Name
1
+5V
2
D-
3
D+
4
GND
5
+5V
6
D-
7
D+
8
GND
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MIO-5251 User Manual
Appendix A Pin Assignments
CN17
CN19
External USB2.0+USB3.0
Part Number
1654010199
Footprint
USB_13P_UEA1112C-UHS6-4F
Description
USB Conn. 2.0+3.0 13P 90D(F) DIP UEA1112C-UHS6-4
Pin
Pin Name
1
+5V
2
D-
3
D+
4
GND
5
SSRX-
6
SSRX+
7
GND
8
SSTX-
9
SSTX+
10
+5V
11
D-
12
D+
13
GND
MIO-5251 User Manual
52
COM1/COM2
Part Number
1653004793
Footprint
HD_10x2P_79_23N685B-20M10
Description
BOX HEADER 10x2P 2.0mm 180D(M)SMD 23N685B-20M10B
Pin
Pin Name
1
DCD1#
2
DSR1#
3
RXD1
4
RTS1#
5
TXD1
6
CTS1#
7
DTR1#
8
RI1#
9
GND
10
GND
11
DCD2#
12
DSR2#
13
RXD2
14
RTS2#
15
TXD2
16
CTS2#
17
DTR2#
18
RI2#
19
GND
20
GND
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MIO-5251 User Manual
Appendix A Pin Assignments
CN20
CN21
COM3/COM4
Part Number
1653004793
Footprint
HD_10x2P_79_23N685B-20M10
Description
BOX HEADER 10x2P 2.0mm 180D(M)SMD 23N685B-20M10B
Pin
Pin Name
1
422TX3-/485D3-/DCD3#
2
DSR3#
3
422TX3+/485D3+/RXD3
4
RTS3#
5
422RX3+/TXD3
6
CTS3#
7
422RX3-/DTR3#
8
RI3#
9
GND
10
GND
11
422TX4-/485D4-/DCD4#
12
DSR4#
13
422TX4+/485D4+/RXD4
14
RTS4#
15
422RX4+/TXD4
16
CTS4#
17
422RX4-/DTR4#
18
RI4#
19
GND
20
GND
MIO-5251 User Manual
54
GbE
Part Number
1652003274
Footprint
RJ45_14P_RTA-195AAK1A
Description
PHONE JACK RJ45 28P DIP RTB-19GB9J1A
Pin
Pin Name
1
TX+(10/100),BI_DA+(GHz)
2
TX-(10/100),BI_DA-(GHz)
3
RX+(10/100),BI_DB+(GHz)
4
BI_DC+(GHz)
5
BI_DC-(GHz)
6
RX-(10/100),BI_DB-(GHz)
7
BI_DD+(GHz)
8
BI_DD-(GHz)
CN27
Audio
Part Number
1653004099
Footprint
HD_5x2P_79_23N685B-10M10
Description
BOX HEADER 5x2P 2.00mm 180D(M) SMD 23N685B-10M10
Pin
Pin Name
1
LOUTR
2
LINR
3
GND
4
GND
5
LOUTL
6
LINL
7
GND
8
GND
9
MIC1R
10
MIC1L
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MIO-5251 User Manual
Appendix A Pin Assignments
CN24
CN29
MIOe
Part Number
1654006235
Footprint
MIOE_CPUSIDE
Description
B/B Conn. 40x2P 0.8mm 180D(F) SMD QSE-040-01-L-D
Pin
Pin Name
1
GND
2
GND
3
PCIE_RX0+
4
PCIE_TX0+
5
PCIE_RX0-
6
PCIE_TX0-
7
GND
8
GND
9
PCIE_RX1+
10
PCIE_TX1+
11
PCIE_RX1-
12
PCIE_TX1-
13
GND
14
GND
15
PCIE_RX2+
16
PCIE_TX2+
17
PCIE_RX2-
18
PCIE_TX2-
19
GND
20
GND
21
PCIE_RX3+
22
PCIE_TX3+
23
PCIE_RX3-
24
PCIE_TX3-
25
GND
26
GND
27
PCIE_CLK+
28
LOUTL
29
PCIE_CLK-
30
LOUTR
31
GND
32
AGND
33
SMB_CLK
34
NC
35
SMB_DAT
36
NC
37
PCIE_WAKE#
38
NC
39
RESET#
40
NC
41
SLP_S3#
MIO-5251 User Manual
56
CLK33M
43
NC
44
LPC_AD0
45
DDP_HPD
46
LPC_AD1
47
GND
48
LPC_AD2
Appendix A Pin Assignments
42
49
DDP_AUX+
50
LPC_AD3
51
DDP_AUX-
52
LPC_DRQ#0
53
GND
54
LPC_SERIRQ
55
DDP_D0+
56
LPC_FRAME#
57
DDP_D0-
58
GND
59
GND
60
USB0_D+
61
DDP_D1+
62
USB0_D-
63
DDP_D1-
64
GND
65
GND
66
USB1_D+/USB_SSTX+
67
DDP_D2+
68
USB1_D-/USB_SSTX-
69
DDP_D2-
70
GND
71
GND
72
USB2_D+/USB_SSRX+
73
DDP_D3+
74
USB2_D-/USB_SSRX-
75
DDP_D3-
76
GND
77
GND
78
USB_OC#
79
+12VSB
80
+12VSB
83
GND
84
GND
85
GND
86
GND
87
+5VSB
88
+5VSB
89
+5VSB
90
+5VSB
57
MIO-5251 User Manual
CN30
Inverter Power
Part Number
1655000453
Footprint
WHL5V-2M-24W1140
Description
WAFER BOX 2.0mm 5P 180D(M) DIP WO/Pb JIH VEI
Pin
Pin Name
1
+12V
2
GND
3
ENABKL
4
VBR
5
+5V
CN31
LVDS
Part Number
1653920200
Footprint
SPH20X2
Description
B/B Conn. 40P 1.25mm 90D SMD DF13-40DP-1.25V(91)
Pin
Pin Name
1
+5V or +3.3V
2
+5V or +3.3V
3
GND
4
GND
5
+5V or +3.3V
6
+5V or +3.3V
7
LVDS0_D0-
8
LVDS1_D0-
9
LVDS0_D0+
10
LVDS1_D0+
11
GND
12
GND
13
LVDS0_D1-
14
LVDS1_D1-
15
LVDS0_D1+
16
LVDS1_D1+
17
GND
MIO-5251 User Manual
58
GND
19
LVDS0_D2-
20
LVDS1_D2-
21
LVDS0_D2+
22
LVDS1_D2+
23
GND
24
GND
25
LVDS0_CLK-
26
LVDS1_CLK-
27
LVDS0_CLK+
28
LVDS1_CLK+
29
GND
30
GND
31
NC
32
NC
33
GND
34
GND
35
LVDS0_D3-
36
LVDS1_D3-
37
LVDS0_D3+
38
LVDS1_D3+
39
NC
40
NC
Appendix A Pin Assignments
18
59
MIO-5251 User Manual
CN32
eDP
Part Number
1653910261
Footprint
SPH10X2
Description
B/B Conn 10x2P 1.25mm 180D(M)SMD DF13-20DP-1.25V
Pin
Pin Name
1
GND
2
GND
3
D0-
4
D3-
5
D0+
6
D3+
7
GND
8
NC
9
D1-
10
GND
11
D1+
12
AUX-
13
GND
14
AUX+
15
D2-
16
GND
17
D2+
18
Hot Plug Detect
19
+5V or +3.3V
20
+5V or +3.3V
MIO-5251 User Manual
60
SMBus/I2C
Part Number
1655904020
Footprint
FPC4V-125M
Description
WAFER 4P 1.25mm 180D(M) SMD 85205-04001
Pin
Pin Name
1
GND
2
SMB_DAT
3
SMB_CLK
4
+5V
CN34
Internal USB
Part Number
1653003718
Footprint
HD_5x2P_79_RA_N10_21N22050
Description
PIN HEADER 5x2P 2.00mm 90D(M) SMD 21N22050
Pin
Pin Name
1
+V5SB_USB_UTC
2
NC
3
USB6_HUB1_z_P-
4
NC
5
USB6_HUB1_z_P+
6
NC
7
GND
8
NC
9
GND
61
MIO-5251 User Manual
Appendix A Pin Assignments
CN33
FAN1
System Fan
Part Number
1655003010
Footprint
WHP3VA
Description
Wafer 2.54mm 3P 180D(M) DIP 22-27-2031
Pin
Pin Name
1
GND
2
+V12
3
N/A
MIO-5251 User Manual
62
Appendix
B
B
System Assignments
This appendix contains information of a detailed nature.
Sections include:
 System I/O Ports
 1st MB Memory Map
 Interrupt Assignments
B.1 System I/O Ports
Table B.1: System I/O Ports
Addr. Range (Hex)
Device
20–2D
Interrupt Controller
2E – 2F
Motherboard resources
30 – 3D
Interrupt Controller
40 – 43
System timer
4E – 4F
Motherboard resources
50 – 53
System timer
61 – 67
Motherboard resources
70 - 7F
System CMOS/real time clock
80 - 92
Motherboard resources
A0 – B1
Interrupt Controller
B2 – B3
Motherboard resources
B4 – BD
Interrupt Controller
272 – 273
Motherboard resources
290 – 29F
Embedded Controller resources
2E8 – 2EF
COM4
2F8 – 2FF
COM2
3B0 – 3DF
Intel® HD Graphics
3E8 – 3EF
COM3
3F8 – 3FF
COM1
400 – 47F
Motherboard resources
4D0 – 4D1
Interrupt Controller
500 – 57F
Motherboard resources
B.2 1st MB Memory Map
Table B.2: 1st MB Memory Map
Addr. Range (Hex)
Device
A0000h - BFFFFh
Intel® HD Graphics
A0000h - BFFFFh
PCI Bus
C0000h - DFFFFh
PCI Bus
E0000h - FFFFFh
PCI Bus
90400000 – 905FFFFF Intel® Trusted Execution Engine Interface
E0000000 - FEFFFFFF System resources
MIO-5251 User Manual
64
Table B.3: Interrupt assignments
Interrupt#
Interrupt source
NMI
Parity error detected
IRQ0
System timer
IRQ1
Using SERIRQ, Keyboard Emulation
IRQ2
Slave controller INTR output
IRQ3
Communications Port (COM2)
IRQ4
Communications Port (COM1)
IRQ5
Communications Port (COM4) / iManager WatchDog IRQ
IRQ6
Available
IRQ7
Communications Port (COM3)
IRQ8
Internal RTC or HPET
IRQ9
Microsoft ACPI-Compliant System
IRQ10
Available
IRQ11
Available
IRQ12
Available
IRQ13
Numeric data processor
IRQ14
SATA controller
IRQ15
SATA controller
65
MIO-5251 User Manual
Appendix B System Assignments
B.3 Interrupt Assignments
MIO-5251 User Manual
66
Appendix
C
C
EC Watchdog Timer
Sample Code
C.1 EC Watchdog Timer sample code
EC_Command_Port = 0x29Ah
EC_Data_Port = 0x299h
Write EC HW ram = 0x89
Watch dog event flag = 0x57
Watchdog reset delay time = 0x5E
Reset event = 0x04
Start WDT function = 0x28
====================================================
.model small
.486p
.stack 256
.data
.code
org 100h
.STARTup
mov dx, EC_Command_Port
mov al,89h
; Write EC HW ram.
out dx,al
mov dx, EC_Data_Port
mov al, 5Fh
; Watchdog reset delay time low byte (5Eh is high byte) index.
out dx,al
mov dx, EC_Data_Port
mov al, 30h
;Set 3 seconds delay time.
out dx,al
mov dx, EC_Command_Port
mov al,89h
; Write EC HW ram.
out dx,al
mov dx, EC_Data_Port
mov al, 57h
; Watch dog event flag.
out dx,al
mov dx, EC_Data_Port
mov al, 04h
; Reset event.
out dx,al
mov dx, EC_Command_Port
mov al,28h
; start WDT function.
out dx,al
.exit
END
MIO-5251 User Manual
68
Appendix C EC Watchdog Timer Sample Code
MIO-5251 User Manual
69
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