DFI TGU968 User manual

TGU968
COM Express Compact Module
User’s Manual
©May 10, 2023 DFI Inc.

2User's Manual | TGU968
Copyright
This publication contains information that is protected by copyright. No part of it may be repro-
duced in any form or by any means or used to make any transformation/adaptation without the
prior written permission from the copyright holders.
This publication is provided for informational purposes only. The manufacturer makes no
representations or warranties with respect to the contents or use of this manual and specifi-
cally disclaims any express or implied warranties of merchantability or fitness for any particular
purpose. The user will assume the entire risk of the use or the results of the use of this docu-
ment. Further, the manufacturer reserves the right to revise this publication and make changes
to its contents at any time, without obligation to notify any person or entity of such revisions or
changes.
Changes after the publication’s first release will be based on the product’s revision. The website
will always provide the most updated information.
© 2023. All Rights Reserved.
Trademarks
Product names or trademarks appearing in this manual are for identification purpose only and
are the properties of the respective owners.
COM Express Specification Reference
PICMG® COM Express® Module Base Specification.
http://www.picmg.org/
FCC and DOC Statement on Class B
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reason-
able protection against harmful interference when the equipment is operated in a residential
installation. 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. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encour-
aged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the re-
ceiver is connected.
• Consult the dealer or an experienced radio TV technician for help.
Notice:
• The changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
• Shielded interface cables must be used in order to comply with the emission limits.

3User's Manual | TGU968
Table of Contents
Chapter 1 - Introduction................................................................................................................6
Specifications ......................................................................................................................... 6
Chapter 2 - Concept...................................................................................................................... 8
COM Express Module Standards .........................................................................................8
Chapter 3 - Hardware Installation................................................................................................9
Board Layout ......................................................................................................................... 9
Block Diagram ........................................................................................................................ 9
Connector..............................................................................................................................10
COM Express Connector...............................................................................................10
COM Express Connector ....................................................................................................11
COM Express Connector Signal Description .....................................................................15
Cooling Option......................................................................................................................23
Heat Sink........................................................................................................................23
Installing the COM Express Debug Card ...........................................................................24
COMe-DEBUG.................................................................................................................25

4User's Manual | TGU968
About this Manual
This manual can be downloaded from the website.
The manual is subject to change and update without notice, and may be based on editions that
do not resemble your actual products. Please visit our website or contact our sales representa-
tives for the latest editions.
Warranty
• Warranty does not cover damages or failures that occur from misuse of the product,
inability to use the product, unauthorized replacement or alteration of components and
product specifications.
• The warranty is void if the product has been subjected to physical abuse, improper
installation, modification, accidents or unauthorized repair of the product.
• Unless otherwise instructed in this user’s manual, the user may not, under any circum-
stances, attempt to perform service, adjustments or repairs on the product, whether
in or out of warranty. It must be returned to the purchase point, factory or authorized
service agency for all such work.
• We will not be liable for any indirect, special, incidental or consequential damages to
the product that has been modified or altered.
Static Electricity Precautions
It is quite easy to inadvertently damage your PC, system board, components or devices even
before installing them in your system unit. Static electrical discharge can damage computer
components without causing any signs of physical damage. You must take extra care in han-
dling them to ensure against electrostatic build-up.
• To prevent electrostatic build-up, leave the system board in its anti-static bag until you
are ready to install it.
• Wear an antistatic wrist strap.
• Do all preparation work on a static-free surface.
• Hold the device only by its edges. Be careful not to touch any of the components, con-
tacts or connections.
• Avoid touching the pins or contacts on all modules and connectors. Hold modules or
connectors by their ends.
Safety Measures
• To avoid damage to the system, use the correct AC input voltage range.
• To reduce the risk of electric shock, unplug the power cord before removing the sys-
tem chassis cover for installation or servicing. After installation or servicing, cover the
system chassis before plugging the power cord.
Important:
Electrostatic discharge (ESD) can damage your processor, disk drive and other
components. Perform the upgrade instruction procedures described at an ESD
workstation only. If such a station is not available, you can provide some ESD pro-
tection by wearing an antistatic wrist strap and attaching it to a metal part of the
system chassis. If a wrist strap is unavailable, establish and maintain contact with
the system chassis throughout any procedures requiring ESD protection.

5User's Manual | TGU968
About the Package
The package contains the following items. If any of these items are missing or damaged,
please contact your dealer or sales representative for assistance.
• 1 TGU968 board
Optional Items
The board and accessories in the package may not come similar to the information listed
above. This may differ in accordance with the sales region or models in which it was sold. For
more information about the standard package in your region, please contact your dealer or
sales representative.
Before Using the System Board
Before using the system board, prepare basic system components.
If you are installing the system board in a new system, you will need at least the following inter-
nal components.
• Storage devices such as hard disk drive, etc.
You will also need external system peripherals you intend to use which will normally include at
least a keyboard, a mouse and a video display monitor.

6
Chapter 1
INTRODUCTION
User's Manual | TGU968
Chapter 1 - Introduction
XSpecifications
SYSTEM Processor Intel® Core™ i7-1185G7E Processor (Core 4; Max speed 2.8 GHz; TDP 15-28W)
Intel® Core™ i7-1185GRE Processor (Core 4; Max speed 2.8 GHz; TDP 15-28W) Support In-band ECC
Intel® Core™ i5-1145G7E Processor (Core 4; Max speed 2.6 GHz; TDP 15-28W)
Intel® Core™i5-1145GRE Processor (Core 4; Max speed 2.6 GHz; TDP 15-28W) Support In-band ECC
Intel® Core™ i3-1115G4E Processor (Core 2; Max speed 3.0 GHz; TDP 15-28W)
Intel® Core™ i3-1115GRE Processor (Core 2; Max speed 3.0 GHz; TDP 15-28W Support In-band ECC
Intel® Celeron® 6305E Processor (Core 2; Max speed 1.8 GHz; TDP 15W)
Memory Two 260-Pin SO-DIMM up to 64GB, Dual Channel DDR4 3200MHz
BIOS AMI BIOS
GRAPHICS Controller Intel® Iris® Xe graphics
Feature OpenGL 5.0, DirectX 12, OpenCL 2.1
HW Decode: WMV9, AVC/H264, JPEG/MJPEG, HEVC/H265, VP9, AV1
HW Encode: AVC/H264, JPEG, HEVC/H265, VP9
Display 1 x VGA
1 x LVDS/eDP (eDP available upon request)
3 x DDI
* VGA: resolution up to 1920x1200 @ 60Hz
* LVDS: dual channel 24-bit, resolution up to 1920x1200 @ 60Hz
* eDP: resolution up to 4096x2304 @ 60Hz
* HDMI: resolution up to 4096x2160 @ 30Hz
* DP++: resolution up to 4096x2304 @ 60Hz
Triple
Displays
VGA + LVDS + DDI
DDI + eDP + DDI (available upon request)
EXPANSION Interface 1 x PCIe x4 (Gen 4)
5 x PCIex1 (Gen3) (8 x PCIex1 available upon request) 1 x I2C
1 x SMBus
1 x SPI
2 x UART (TX/RX)
AUDIO Interface HD Audio
ETHERNET Controller 1 x Intel® I225 series (10/100/1000Mbps/2.5G), co-lay PCIe x1 (available upon request)
I/O USB 4 x USB 3.2 Gen.2
8 x USB 2.0
SATA 2 x SATA 3.0 (up to 6Gb/s), co-lay PCIe x1 (available upon request)
NVMe SSD 1 x 64GB/128GB/256GB/512GB/1024GB on board SSD (available upon request)
DIO 1 x 8-bit DIO

7
Chapter 1
INTRODUCTION
User's Manual | TGU968
WATCHDOG TIMER Output & Interval System Reset, Programmable via Software from 1 to 255 Seconds
SECURITY TPM Available Upon Request
Power Type 8.5~20V, 5VSB, VCC_RTC (ATX mode)
8.5~12V, VCC_RTC (AT mode)
Consumption Boot up: i7-1185GRE: 12V @ 2.03A (24.36W);
Idle: i7-1185GRE: 12V @ 0.86A (10.2W);
Max.: i7-1185GRE: 12V @ 3.35A (40.2W)
OS SUPPORT Windows: Windows 10 IoT Enterprise 64-bit
Linux
ENVIRONMENT Temperature Operating: 0 to 60°C, -40 to 85°C
Storage: -40 to 85°C
Humidity Operating: 10 to 90% RH
Storage: 10 to 90% RH
MTBF 1,083,012 hrs @ 25°C;
730,611 hrs @ 45°C;
513,984 hrs @ 60°C;
398,344 hrs @ 70°C;
266,028 hrs @ 85°C
MECHANICAL Dimensions COM Express® Compact
95mm (3.74") x 95mm (3.74")
Compliance PICMG COM Express® R3.0, Type 6
STANDARDS AND CER-
TIFICATIONS
Certification CE, FCC

8
Chapter 2
HARDWARE INSTALLATION
User's Manual | TGU968
Chapter 2 - Concept
106.00
91.00
70.00
51.00
4.00
18.00
6.00
0.00
16.50 4.00 0.00
Extended
BasicCompact
Mini
74.20 80.00 91.00 121.00 151.00
Common for all Form Factors
Extended only
Basic only
Compact only
Compact and Basic only
Mini only
XCOM Express Module Standards
The figure below shows the dimensions of the different types of COM Express modules.
TGU968 is a COM Express Compact. The dimension is 95mm x 95mm.

9
Chapter 3
HARDWARE INSTALLATION
User's Manual | TGU968 9
Chapter 3 - Hardware Installation
XBoard Layout
COM Express Connector
C1
D1
C110
D110
B1B110
A1A110
COM Express Connector
TOP
SPI Flash BIOS
BOTTOM
XBlock Diagram
EEPROM
SATA 3.0 2x
USB 3.1 4x
A / B
SMBus
Intel ULT SOC
Intel®GLAN
I225LM
MDI
SPI Flash
SPI Bus
C / D
SO-DIMM 260PIN
DDR4-3200
Non-ECC/In-band ECC
Channel A
PCIe 3.0 x1
LPC Bus
WDT
I2C Bus
TPM
2.0
(optional)
Serial Port 1,2
Fan PWM/
TACH_IN
SLP/LID
Embedded
Controller
ITE8528
DDI Port 3x
HDA
USB 2.0 8x
PTN3460
LVDS/48bit
CH7517A
VGA
PCIe x1 (5x1)
PCIe 4.0 x4
Channel B
SO-DIMM 260PIN
DDR4-3200
Non-ECC/In-band ECC
NVME
SSD
(optional)
eDP
eDP
8bit DIO
eSPI Bus
eSPI to LPC bridge
F85227
LPC Bus
(optional)
(optional)
Intel ULT
SOC
PCIe x1 (option)
PCIe x1
PCIe x1
(optional)
(optional)

10
Chapter 3
HARDWARE INSTALLATION
User's Manual | TGU968
XConnector
The COM Express connector is used to interface the TGU968 COM Express board to a carrier
board. Connect the COM Express connector (located on the solder side of the board) to the
COM Express connector on the carrier board.
Refer to the following pages for the pin functions of the connector.
COM Express Connector
COM Express Connector
COM Express Connector
C1
D1
C110
D110
B1B110
A1A110
COM Express Connector