DFI TGU968 User manual

TGU968
COM Express Compact Module
User’s Manual
© February 03, 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......................................................................................................................21
Heat Sink........................................................................................................................21
Installing the COM Express Debug Card ...........................................................................22
COMe-DEBUG.................................................................................................................23
Chapter 4 - BIOS Settings...........................................................................................................25
Overview ...............................................................................................................................25
Updating the BIOS................................................................................................................25
Main.......................................................................................................................................26
Advanced .............................................................................................................................26
CPU Configuration.........................................................................................................27
Power & Performance ...................................................................................................27
Power & Performance ►CPU- Power Management Control ..............................28
Power & Performance ►GT- Power Management Control .................................29
PCH-FW Configuration ..................................................................................................29
Trusted Computing........................................................................................................30
PTN3460 Configuration ................................................................................................30
IT8528 Super IO Configuration.....................................................................................31
Serial Port Console Redirection ...................................................................................31
Serial Port Console Redirection ►Console Redirection Settings........................32
ACPI Settings.................................................................................................................33
USB Configuration ........................................................................................................33
Network Stack Configuration........................................................................................34
NVMe Configuration......................................................................................................35
DFI EC HW Monitor .......................................................................................................35
DFI EC HW Monitor ►Smart Fan Function ........................................................36
DFI WDT Configuration..................................................................................................36
Tls Auth Configuration ..................................................................................................37
Chipset ..................................................................................................................................38
System Agnet (SA) Configuration ................................................................................38
System Agnet (SA) Configuration►Memory Configuration.................................39
System Agnet (SA) Configuration►Graphics Configuration................................39
System Agnet (SA) Configuration►VMD Configuration ......................................40
PCH-IO Configuration....................................................................................................40
PCH-IO Configuration►PCI Express Configuration .............................................41
PCH-IO Configuration►SATA And RST Configuration.........................................41
PCH-IO Configuration►HD Audio Configuration .................................................42
HD Audio Configuration ................................................................................................42
Security .................................................................................................................................43
Boot .......................................................................................................................................44
Save & Exit ............................................................................................................................44

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

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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 TBD
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 TBD
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)

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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

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Chapter 3
HARDWARE INSTALLATION
User's Manual | TGU968
XCOM Express Connector
Row A Row B
A1 GND (FIXED) B1 GND (FIXED)
A2 GBE0_MDI3- B2 GBE0_ACT#
A3 GBE0_MDI3+ B3 LPC_FRAME#
A4 GBE0_LINK100# B4 LPC_AD0
A5 GBE0_LINK1000# B5 LPC_AD1
A6 GBE0_MDI2- B6 LPC_AD2
A7 GBE0_MDI2+ B7 LPC_AD3
A8 GBE0_LINK# B8 LPC_DRQ0#
(NA)
A9 GBE0_MDI1- B9 LPC_DRQ1#
(NA)
A10 GBE0_MDI1+ B10 LPC_CLK
A11 GND (FIXED) B11 GND (FIXED)
A12 GBE0_MDI0- B12 PWRBTN#
A13 GBE0_MDI0+ B13 SMB_CK
A14 GBE0_CTREF B14 SMB_DAT
A15 SUS_S3# B15 SMB_ALERT#
A16 SATA0_TX+ B16 SATA1_TX+
A17 SATA0_TX- B17 SATA1_TX-
A18 SUS_S4# B18 SUS_STAT#
A19 SATA0_RX+ B19 SATA1_RX+
A20 SATA0_RX- B20 SATA1_RX-
A21 GND (FIXED) B21 GND (FIXED)
A22 SATA2_TX+ (NA) B22 SATA3_TX+ (NA)
A23 SATA2_TX- (NA) B23 SATA3_TX- (NA)
A24 SUS_S5# B24 PWR_OK
A25 SATA2_RX+ (NA) B25 SATA3_RX+ (NA)
A26 SATA2_RX- (NA) B26 SATA3_RX- (NA)
A27 BATLOW# B27 WDT
Row A Row B
A28 (S)ATA_ACT# B28 NA
A29 AC/HDA_SYNC B29 AC/HDA _SDIN1
A30 AC/HDA _RST# B30 AC/HDA _SDIN0
A31 GND (FIXED) B31 GND (FIXED)
A32 AC/HDA _BITCLK B32 SPKR
A33 AC/HDA _SDOUT B33 I2C_CK
A34 BIOS_DIS0# B34 I2C_DAT
A35 THRMTRIP# B35 THRM#
A36 USB6- B36 USB7-
A37 USB6+ B37 USB7+
A38 USB_6_7_OC# B38 USB_4_5_OC#
A39 USB4- B39 USB5-
A40 USB4+ B40 USB5+
A41 GND (FIXED) B41 GND (FIXED)
A42 USB2- B42 USB3-
A43 USB2+ B43 USB3+
A44 USB_2_3_OC# B44 USB_0_1_OC#
A45 USB0- B45 USB1-
A46 USB0+ B46 USB1+
A47 VCC_RTC B47 EXCD1_PERST#
A48 EXCD0_PERST# B48 EXCD1_CPPE#
A49 EXCD0_CPPE# B49 SYS_RESET#
A50 LPC_SERIRQ B50 CB_RESET#
A51 GND (FIXED) B51 GND (FIXED)
A52 " PCIE_TX5+
(Optional)" B52 " PCIE_TX5+ (Optional)"
A53 " PCIE_TX5-
(Optional)" B53 " PCIE_TX5- (Optional)"
A54 GPI0 B54 GPO1
A55 PCIE_TX4+ B55 PCIE_RX4+

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Row A Row B
A56 PCIE_TX4- B56 PCIE_RX4-
A57 GND B57 GPO2
A58 PCIE_TX3+ B58 PCIE_RX3+
A59 PCIE_TX3- B59 PCIE_RX3-
A60 GND (FIXED) B60 GND (FIXED)
A61 PCIE_TX2+ B61 PCIE_RX2+
A62 PCIE_TX2- B62 PCIE_RX2-
A63 GPI1 B63 GPO3
A64 PCIE_TX1+ B64 PCIE_RX1+
A65 PCIE_TX1- B65 PCIE_RX1-
A66 GND B66 WAKE0#
A67 GPI2 B67 WAKE1#
A68 PCIE_TX0+ B68 PCIE_RX0+
A69 PCIE_TX0- B69 PCIE_RX0-
A70 GND(FIXED) B70 GND (FIXED)
A71 LVDS_A0+ B71 LVDS_B0+
A72 LVDS_A0- B72 LVDS_B0-
A73 LVDS_A1+ B73 LVDS_B1+
A74 LVDS_A1- B74 LVDS_B1-
A75 LVDS_A2+ B75 LVDS_B2+
A76 LVDS_A2- B76 LVDS_B2-
A77 LVDS_VDD_EN B77 LVDS_B3+
A78 LVDS_A3+ B78 LVDS_B3-
A79 LVDS_A3- B79 LVDS_BKLT_EN
A80 GND (FIXED) B80 GND (FIXED)
A81 LVDS_A_CK+ B81 LVDS_B_CK+
A82 LVDS_A_CK- B82 LVDS_B_CK-
Row A Row B
A83 LVDS_I2C_CK B83 LVDS_BKLT_CTRL
A84 LVDS_I2C_DAT B84 VCC_5V_SBY
A85 GPI3 B85 VCC_5V_SBY
A86 RSVD B86 VCC_5V_SBY
A87 ePD_HPD B87 VCC_5V_SBY
A88 PCIE0_CK_REF+ B88 BIOS_DIS1#
A89 PCIE0_CK_REF- B89 VGA_RED
A90 GND (FIXED) B90 GND (FIXED)
A91 SPI_POWER B91 VGA_GRN
A92 SPI_MISO B92 VGA_BLU
A93 GPO0 B93 VGA_HSYNC
A94 SPI_CLK B94 VGA_VSYNC
A95 SPI_MOSI B95 VGA_I2C_CK
A96 TPM_PP B96 VGA_I2C_DAT
A97 Type10# (NC) B97 SPI_CS#
A98 SER0_TX B98 RSVD
A99 SER0_RX B99 RSVD
A100 GND (FIXED) B100 GND (FIXED)
A101 SER1_TX B101 FAN_PWMOUT
A102 SER1_RX B102 FAN_TACHIN
A103 LID# B103 SLEEP#
A104 VCC_8.5V~ 20V B104 VCC_8.5V~ 20V
A105 VCC_8.5V~ 20V B105 VCC_8.5V~ 20V
A106 VCC_8.5V~ 20V B106 VCC_8.5V~ 20V
A107 VCC_8.5V~ 20V B107 VCC_8.5V~ 20V
A108 VCC_8.5V~ 20V B108 VCC_8.5V~ 20V
A109 VCC_8.5V~ 20V B109 VCC_8.5V~ 20V
A110 GND (FIXED) B110 GND (FIXED)

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Row C Row D
C1 GND (FIXED) D1 GND (FIXED)
C2 GND D2 GND
C3 USB_SSRX0- D3 USB_SSTX0-
C4 USB_SSRX0+ D4 USB_SSTX0+
C5 GND D5 GND
C6 USB_SSRX1- D6 USB_SSTX1-
C7 USB_SSRX1+ D7 USB_SSTX1+
C8 GND D8 GND
C9 USB_SSRX2- D9 USB_SSTX2-
C10 USB_SSRX2+ D10 USB_SSTX2+
C11 GND (FIXED) D11 GND (FIXED)
C12 USB_SSRX3- D12 USB_SSTX3-
C13 USB_SSRX3+ D13 USB_SSTX3+
C14 GND D14 GND
C15 DDI1_PAIR6+ (NA) D15 DDI1_CTRLCLK_
AUX+
C16 DDI1_PAIR6- (NA) D16 DDI1_
CTRLDATA_AUX-
C17 RSVD D17 RSVD
C18 RSVD D18 RSVD
C19 PCIE_RX6+ (Optional
)D19 PCIE_TX6+ (Optional)
C20 PCIE_RX6- (Optional) D20 PCIE_TX6-
(Optional)
C21 GND (FIXED) D21 GND (FIXED)
C22 PCIE_RX7+ (Optional) D22 PCIE_TX7+
(Optional)
C23 PCIE_RX7- (Optional) D23 PCIE_TX7-
(Optional)
C24 DDI1_HPD D24 RSVD
C25 DDI1_PAIR4+ (NA) D25 RSVD
C26 DDI1_PAIR4- (NA) D26 DDI1_PAIR0+
C27 RSVD D27 DDI1_PAIR0-
Row C Row D
C28 RSVD D28 RSVD
C29 DDI1_PAIR5+ (NA) D29 DDI1_PAIR1+
C30 DDI1_PAIR5- (NA) D30 DDI1_PAIR1-
C31 GND (FIXED) D31 GND (FIXED)
C32 DDI2_CTRLCLK_AUX+ D32 DDI1_PAIR2+
C33 DDI2_CTRLDATA_
AUX- D33 DDI1_PAIR2-
C34 DDI2_DDC_AUX_SEL D34 DDI1_DDC_AUX_
SEL
C35 RSVD D35 RSVD
C36 DDI3_CTRLCLK_AUX+ D36 DDI1_PAIR3+
C37 DDI3_CTRLDATA_
AUX- D37 DDI1_PAIR3-
C38 DDI2_DDC_AUX_SEL D38 RSVD
C39 DDI3_PAIR0+ D39 DDI2_PAIR0+
C40 DDI3_PAIR0- D40 DDI2_PAIR0-
C41 GND (FIXED) D41 GND (FIXED)
C42 DDI3_PAIR1+ D42 DDI2_PAIR1+
C43 DDI3_PAIR1- D43 DDI2_PAIR1-
C44 DDI3_HPD D44 DDI2_HPD
C45 RSVD D45 RSVD
C46 DDI3_PAIR2+ D46 DDI2_PAIR2+
C47 DDI3_PAIR2- D47 DDI2_PAIR2-
C48 RSVD D48 RSVD
C49 DDI3_PAIR3+ D49 DDI2_PAIR3+
C50 DDI3_PAIR3- D50 DDI2_PAIR3-
C51 GND (FIXED) D51 GND (FIXED)
C52 PEG_RX0+ (Optional) D52 PEG_TX0+
(Optional)
C53 PEG_RX0- (Optional) D53 PEG_TX0-
(Optional)
C54 TYPE0# (NC) D54 PEG_LANE_RV#
(Optional)
C55 PEG_RX1+ (Optional) D55 PEG_TX1+
(Optional)

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Row C Row D
C56 PEG_RX1- (Optional) D56 PEG_TX1-
(Optional)
C57 TYPE1# (NC) D57 TYPE2# (GND)
C58 PEG_RX2+ (Optional) D58 PEG_TX2+
(Optional)
C59 PEG_RX2- D59 PEG_TX2-
(Optional)
C60 GND (FIXED) D60 GND (FIXED)
C61 PEG_RX3+ (Optional) D61 PEG_TX3+
(Optional)
C62 PEG_RX3- (Optional) D62 PEG_TX3-
(Optional)
C63 RSVD D63 RSVD
C64 RSVD D64 RSVD
C65 PEG_RX4+ (NA) D65 PEG_TX4+ (NA)
C66 PEG_RX4- (NA) D66 PEG_TX4- (NA)
C67 RAPID_SHUTDOWN D67 GND
C68 PEG_RX5+ (NA) D68 PEG_TX5+ (NA)
C69 PEG_RX5- (NA) D69 PEG_TX5- (NA)
C70 GND (FIXED) D70 GND (FIXED)
C71 PEG_RX6+ (NA) D71 PEG_TX6+ (NA)
C72 PEG_RX6- (NA) D72 PEG_TX6- (NA)
C73 GND D73 GND
C74 PEG_RX7+ (NA) D74 PEG_TX7+ (NA)
C75 PEG_RX7- (NA) D75 PEG_TX7- (NA)
C76 GND D76 GND
C77 RSVD D77 RSVD
C78 PEG_RX8+ (NA) D78 PEG_TX8+ (NA)
C79 PEG_RX8- (NA) D79 PEG_TX8- (NA)
C80 GND (FIXED) D80 GND (FIXED)
C81 PEG_RX9+ (NA) D81 PEG_TX9+ (NA)
C82 PEG_RX9- (NA) D82 PEG_TX9- (NA)
Row C Row D
C83 RSVD D83 RSVD
C84 GND D84 GND
C85 PEG_RX10+ (NA) D85 PEG_TX10+ (NA)
C86 PEG_RX10- (NA) D86 PEG_TX10- (NA)
C87 GND D87 GND
C88 PEG_RX11+ (NA) D88 PEG_TX11+ (NA)
C89 PEG_RX11- (NA) D89 PEG_TX11- (NA)
C90 GND (FIXED) D90 GND (FIXED)
C91 PEG_RX12+ (NA) D91 PEG_TX12+ (NA)
C92 PEG_RX12- (NA) D92 PEG_TX12- (NA)
C93 GND D93 GND
C94 PEG_RX13+ (NA) D94 PEG_TX13+ (NA)
C95 PEG_RX13- (NA) D95 PEG_TX13- (NA)
C96 GND D96 GND
C97 RSVD D97 RSVD
C98 PEG_RX14+ (NA) D98 PEG_TX14+ (NA)
C99 PEG_RX14- (NA) D99 PEG_TX14- (NA)
C100 GND (FIXED) D100 GND (FIXED)
C101 PEG_RX15+ (NA) D101 PEG_TX15+ (NA)
C102 PEG_RX15- (NA) D102 PEG_TX15- (NA)
C103 GND D103 GND
C104 VCC_8.5V~ 20V D104 VCC_8.5V~ 20V
C105 VCC_8.5V~ 20V D105 VCC_8.5V~ 20V
C106 VCC_8.5V~ 20V D106 VCC_8.5V~ 20V
C107 VCC_8.5V~ 20V D107 VCC_8.5V~ 20V
C108 VCC_8.5V~ 20V D108 VCC_8.5V~ 20V
C109 VCC_8.5V~ 20V D109 VCC_8.5V~ 20V
C110 GND (FIXED) D110 GND (FIXED)

15
Chapter 3
HARDWARE INSTALLATION
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XCOM Express Connector Signal Description
www.dfi.comChapter 3 Hardware Installation
17
Chapter 3
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
AC/HAD_RST# A30 O CMOS 3.3V Suspend/3.3V Connect to CODEC pin 11 RESET# Reset output to CODEC, active low.
AC/HDA_SYNC A29 O CMOS 3.3V/3.3V Connect to CODEC pin 10 SYNC Sample-synchronization signal to the CODEC(s).
AC/HDA_BITCLK A32 I/O CMOS 3.3V/3.3V Connect to CODEC pin 6 BIT_CLK Serial data clock generated by the external CODEC(s).
AC/HDA_SDOUT A33 O CMOS 3.3V/3.3V Connect to CODEC pin 5 SDATA_OUT Serial TDM data output to the CODEC.
AC/HDA_SDIN2 B28 I/O CMOS 3.3V Suspend/3.3V HDA_SDIN2 NA NC
AC/HDA_SDIN1 B29 I/O CMOS 3.3V Suspend/3.3V Connect 33 ƻin series to CODEC1 pin 8 SDATA_IN
AC/HDA_SDIN0 B30 I/O CMOS 3.3V Suspend/3.3V Connect 33 ƻin series to CODEC0 pin 8 SDATA_IN
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
GBE0_MDI0+ A13 I/O Analog 3.3V max Suspend
GBE0_MDI0- A12 I/O Analog 3.3V max Suspend
GBE0_MDI1+ A10 I/O Analog 3.3V max Suspend
GBE0_MDI1- A9 I/O Analog 3.3V max Suspend
GBE0_MDI2+ A7 I/O Analog 3.3V max Suspend
GBE0_MDI2- A6 I/O Analog 3.3V max Suspend
GBE0_MDI3+ A3 I/O Analog 3.3V max Suspend
GBE0_MDI3-
A
2I
/
O Analo
g
3.3V max Sus
p
end
GBE0_ACT# B2 OD CMOS 3.3V Suspend/3.3V Connect to LED and recommend current limit resistor 150 ȟto 3.3VSB Gigabit Ethernet Controller 0 activity indicator, active low.
GBE0_LINK# A8 OD CMOS 3.3V Suspend/3.3V NC Gigabit Ethernet Controller 0 link indicator, active low.
GBE0_LINK100# A4 OD CMOS 3.3V Suspend/3.3V Connect to LED and recommend current limit resistor 150 ȟto 3.3VSB Gigabit Ethernet Controller 0 1000 Mbit / sec link indicator, active low.
GBE0_LINK1000# A5 OD CMOS 3.3V Suspend/3.3V Connect to LED and recommend current limit resistor 150 ȟto 3.3VSB Gigabit Ethernet Controller 0 1000 Mbit / sec link indicator, active low.
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
SATA0_TX+ A16 O SATA AC coupled on Module AC Coupling capacitor
SATA0_TX- A17 O SATA AC coupled on Module AC Coupling capacitor
SATA0_RX+ A19 I SATA AC coupled on Module AC Coupling capacitor
SATA0_RX- A20 I SATA AC coupled on Module AC Coupling capacitor
SATA1_TX+ B16 O SATA AC coupled on Module AC Coupling capacitor
SATA1_TX- B17 O SATA AC coupled on Module AC Coupling capacitor
SATA1_RX+ B19 I SATA AC coupled on Module AC Coupling capacitor
SATA1_RX- B20 I SATA AC coupled on Module AC Coupling capacitor
SATA2_TX+ A22 O SATA AC coupled on Module NA
SATA2_TX- A23 O SATA AC coupled on Module NA
SATA2_RX+ A25 I SATA AC coupled on Module NA
SATA2_RX- A26 I SATA AC coupled on Module NA
SATA3_TX+ B22 O SATA AC coupled on Module NA
SATA3_TX- B23 O SATA AC coupled on Module NA
SATA3_RX+ B25 I SATA AC coupled on Module NA
SATA3_RX- B26 I SATA AC coupled on Module NA
ATA_ACT# A28 I/O CMOS 3.3V / 3.3V PU 47K to 3.3V Connect to LED and recommend current limit resistor 220ƻto 3.3V ATA (parallel and serial) or SAS activity indicator, active low.
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
PCIE_TX0+ A68 AC Coupling capacitor
PCIE_TX0- A69 AC Coupling capacitor
PCIE_RX0+ B68
PCIE_RX0- B69
PCIE_TX1+ A64 AC Coupling capacitor
PCIE_TX1- A65 AC Coupling capacitor
PCIE_RX1+ B64
PCIE_RX1- B65
PCIE_TX2+ A61 AC Coupling capacitor
PCIE_TX2- A62 AC Coupling capacitor
PCIE_RX2+ B61
PCIE_RX2- B62
PCIE_TX3+ A58 AC Coupling capacitor
PCIE_TX3- A59 AC Coupling capacitor
PCIE_RX3+ B58
PCIE_RX3- B59
PCIE_TX4+ A55 AC Coupling capacitor
PCIE_TX4- A56 AC Coupling capacitor
ȟ
ȟ
ȟ
ȟ
Connect to Magnetics Module MDI0+/-
Connect to Magnetics Module MDI1+/-
Connect to Magnetics Module MDI2+/-
Connect to Magnetics Module MDI3+/-
Connect to PCIE device or slot
Device - Connect AC Coupling cap 0.1uF
Slot - Connect to PCIE Conn pin
Connect to PCIE device or slot
Device - Connect AC Coupling cap 0.1uF
Slot - Connect to PCIE Conn pin
Connect to PCIE device or slot
Pin Types
I Input to the Module
O Output from the Module
I/O Bi-directional input / output signal
OD Open drain output
NA (No support)
PCI Express Differential Receive Pairs 2
PCI Express Differential Transmit Pairs 3 (This Port is BOM Option with On board LAN)
I PCIE AC coupled off Module
O PCIE AC coupled on Module
O PCIE AC coupled on Module
Device - Connect AC Coupling cap 0.1uF
Slot - Connect to PCIE Conn pin
Connect to PCIE device or slot
Device - Connect AC Coupling cap 0.1uF (This Port is BOM Option with On board LAN)
Slot - Connect to PCIE Conn pin
Connect to PCIE device or slot
AC coupled on Module PCI Express Differential Transmit Pairs 1
PCI Express Differential Receive Pairs 1
PCI Express Differential Receive Pairs 3 (This Port is BOM Option with On board LAN)
O PCIE AC coupled on Module PCI Express Differential Transmit Pairs 0
O PCIE AC coupled on Module PCI Express Differential Transmit Pairs 2
I PCIE AC coupled off Module
I PCIE AC coupled off Module PCI Express Differential Receive Pairs 0
I PCIE AC coupled off Module
O PCIE
A
C97
/
HDA Si
g
nals Descri
p
tion
s
Serial TDM data inputs from up to 3 CODECs.
Gi
g
abit Ethernet Si
g
nals Descri
p
tion
s
PCI Ex
p
ress Lanes Si
g
nals Descri
p
tion
s
Serial ATA or SAS Channel 0 transmit differential pair.
Connect to SATA0 Conn RX pin Serial ATA or SAS Channel 0 receive differential pair.
Connect to SATA1 Conn TX pin
NA (No support)
NA (No support) NA (No support)
NA (No support) NA (No support)
NA (No support) NA (No support)
NA (No support)
Gigabit Ethernet Controller 0: Media Dependent Interface Differential
Pairs 0,1,2,3. The MDI can operate in 1000, 100 and 10 Mbit / sec
modes. Some pairs are unused in some modes, per the following:
1000BASE-T 100BASE-TX 10BASE-T
MDI[0]+/- B1_DA+/- TX+/- TX+/-
MDI[1]+/- B1_DB+/- RX+/- RX+/-
MDI[2]+/- B1_DC+/-
MDI[3]+/- B1_DD+/-
Connect to SATA1 Conn RX pin Serial ATA or SAS Channel 1 receive differential pair.
SATA Si
g
nals Descri
p
tion
s
Connect to SATA0 Conn TX pin
Serial ATA or SAS Channel 1 transmit differential pair.

16
Chapter 3
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www.dfi.comChapter 3 Hardware Installation
18
Chapter 3
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
ȟ
ȟ
ȟ
ȟ
PCI Ex
p
ress Lanes Si
g
nals Descri
p
tion
s
PCIE_RX4+ B55
PCIE_RX4- B56
PCIE_TX5+ A52
PCIE_TX5- A53 AC Coupling capacitor
PCIE_RX5+ B52
PCIE_RX5- B53
PCIE_TX6+ (Optional) D19 NA
PCIE_TX6- (Optional) D20 NA
PCIE_RX6+(Optional) C19
PCIE_RX6-(Optional) C20
PCIE_TX7+ (Optional) D22 NA
PCIE_TX7- (Optional) D23 NA
PCIE_RX7+ (Optional) C22 NA
PCIE_RX7- (Optional) C23 NA
PCIE0_CK_REF+ A88
PCIE0_CK_REF- A89
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
PEG_TX0+ (Optional) D52 NA ==> (ALL PEG)
PEG_TX0- (Optional) D53 NA ==> (ALL PEG)
PEG_RX0+ (Optional) C52
PEG_RX0- (Optional) C53
PEG_TX1+ (Optional) D55 NA ==> (ALL PEG)
PEG_TX1- (Optional) D56 NA ==> (ALL PEG)
PEG_RX1+ (Optional) C55
PEG_RX1- (Optional) C56
PEG_TX2+ (Optional) D58 NA ==> (ALL PEG)
PEG_TX2- (Optional) D59 NA ==> (ALL PEG)
PEG_RX2+ (Optional) C58
PEG_RX2- (Optional) C59
PEG_TX3+ (Optional) D61 NA ==> (ALL PEG)
PEG_TX3- (Optional) D62 NA ==> (ALL PEG)
PEG_RX3+ (Optional) C61
PEG_RX3- (Optional) C62
PEG_TX4+ D65 NA ==> (ALL PEG)
PEG_TX4- D66 NA ==> (ALL PEG)
PEG_RX4+ C65
PEG_RX4- C66
PEG_TX5+ D68 NA ==> (ALL PEG)
PEG_TX5- D69 NA ==> (ALL PEG)
PEG_RX5+ C68
PEG_RX5- C69
PEG_TX6+ D71 NA ==> (ALL PEG)
PEG_TX6- D72 NA ==> (ALL PEG)
PEG_RX6+ C71
PEG_RX6- C72
PEG_TX7+ D74 NA ==> (ALL PEG)
PEG_TX7- D75 NA ==> (ALL PEG)
PEG_RX7+ C74
PEG_RX7- C75
PEG_TX8+ D78 NA ==> (ALL PEG)
PEG_TX8- D79 NA ==> (ALL PEG)
PEG_RX8+ C78
PEG_RX8- C79
PEG_TX9+ D81 NA ==> (ALL PEG)
PEG_TX9- D82 NA ==> (ALL PEG)
PEG_RX9+ C81
PEG_RX9- C82
PEG_TX10+ D85 NA ==> (ALL PEG)
PEG_TX10- D86 NA ==> (ALL PEG)
PEG_RX10+ C85
PEG_RX10- C86
PEG_TX11+ D88 NA ==> (ALL PEG)
PEG_TX11- D89 NA ==> (ALL PEG)
PEG_RX11+ C88
PEG_RX11- C89
PEG_TX12+ D91 NA ==> (ALL PEG)
PEG_TX12- D92 NA ==> (ALL PEG)
PEG_RX12+ C91
PEG_RX12- C92
ȟ
ȟ
ȟ
ȟ
AC Coupling capacitorConnect to PCIE device or slot (This Port is BOM Option with On board LAN)
Device - Connect AC Coupling cap 0.1uF (This Port is BOM Option with On board LAN)
Slot - Connect to PCIE Conn pin
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
I PCIE AC coupled off Module NA (No support)NA (No support)
O PCIE AC coupled on Module NA (No support)
O PCIE AC coupled on Module NA (No support)
I PCIE AC coupled off Module
I PCIE AC coupled off Module NA (No support)
NA (No support)NA (No support)
NA (No support)
NA (No support)
NA (No support)
I PCIE AC coupled off Module NA (No support)
O PCIE AC coupled on Module NA (No support)
I PCIE AC coupled off Module NA (No support)
O PCIE AC coupled on Module NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
O PCIE AC coupled on Module NA (No support)
I PCIE AC coupled off Module NA (No support)
O PCIE
O PCIE AC coupled on Module NA (No support)
NA (No support)
NA (No support)
NA (No support)
O PCIE AC coupled on Module NA (No support)
I PCIE AC coupled off Module NA (No support)
AC coupled on Module NA (No support)
I PCIE AC coupled off Module NA (No support)
NA (No support)
I PCIE AC coupled off Module
I PCIE AC coupled off Module NA (No support)
I PCIE AC coupled off Module NA (No support)
O PCIE AC coupled on Module NA (No support)
NA (No support)
O PCIE AC coupled on Module
O PCIE AC coupled on Module
I PCIE
NA (No support)
PEG Si
g
nals Descri
p
tion
s
O PCIE AC coupled on Module NA (No support)
I PCIE AC coupled off Module NA (No support)
O PCIE AC coupled on Module NA (No support)
AC coupled off Module NA (No support)
I PCIE AC coupled off Module
I PCIE AC coupled off Module
O PCIE AC coupled on Module
NA (No support)
O PCIE PCIE Connect to PCIE device, PCIe CLK Buffer or slot Reference clock output for all PCI Express and PCI Express Graphics
lanes.
NA (No support)
O PCIE AC coupled on Module NA (No support)
NA (No support)
I PCIE AC coupled off Module NA (No support)
O PCIE AC coupled on Module NA (No support)
I PCIE AC coupled off Module NA (No support)
Device - Connect AC Coupling cap 0.1uF
Slot - Connect to PCIE Conn pin

17
Chapter 3
HARDWARE INSTALLATION
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19
Chapter 3
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
ȟ
ȟ
ȟ
ȟ
PEG Si
g
nals Descri
p
tion
s
PEG_TX13+ D94 NA ==> (ALL PEG)
PEG_TX13- D95 NA ==> (ALL PEG)
PEG_RX13+ C94
PEG_RX13- C95
PEG_TX14+ D98 NA ==> (ALL PEG)
PEG_TX14- D99 NA ==> (ALL PEG)
PEG_RX14+ C98
PEG_RX14- C99
PEG_TX15+ D101 NA ==> (ALL PEG)
PEG_TX15- D102 NA ==> (ALL PEG)
PEG_RX15+ C101
PEG_RX15- C102
PEG_LANE_RV# D54 I CMO
S
3.3V
/
3.3V NA
(
No su
pp
ort
)
NA
(
No su
pp
ort
)
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
DDI1_PAIR0+/SDVO1_RED+ D26 Connect AC Coupling Capacitors 0.1uF to Device
DDI1_PAIR0-/SDVO1_RED- D27 Connect AC CouplingCapacitors 0.1uF to Device
DDI1_PAIR1+/SDVO1_GRN+ D29 Connect AC Coupling Capacitors 0.1uF to Device
DDI1_PAIR1-/SDVO1_GRN- D30 Connect AC Coupling Capacitors 0.1uF to Device
DDI1_PAIR2+/SDVO1_BLU+ D32 Connect AC Coupling Capacitors 0.1uF to Device
DDI1_PAIR2-/SDVO1_BLU- D33 Connect AC Coupling Capacitors 0.1uF to Device
DDI1_PAIR3+/SDVO1_CK+ D36 Connect AC Coupling Capacitors 0.1uF to Device
DDI1_PAIR3-/SDVO1_CK- D37 Connect AC Coupling Capacitors 0.1uF to Device
DDI1_PAIR4+/SDVO1_INT+ C25 NA (No support) NA (No support)
DDI1_PAIR4-/SDVO1_INT- C26 NA (No support) NA (No support)
DDI1_PAIR5+/SDVO1_TVCLKIN+ C29 NA (No support) NA (No support)
DDI1_PAIR5-/SDVO1_TVCLKIN- C30 NA (No support) NA (No support)
DDI1_PAIR6+/SDVO1_FLDSTALL+ C15 NA (No support) NA (No support)
DDI1_PAIR6-/SDVO1_FLDSTALL- C16 NA (No support) NA (No support)
I/O PCIE AC coupled on Module PD 100K to GND
(S/W IC between Rpu/PCH) Connect to DP AUX+ DP AUX+ function if DDI1_DDC_AUX_SEL is no connect
I/O OD CMOS 3.3V / 3.3V
PU 2.2K to 3.3V, PD 100K to GND
(S/W IC between Rpu/Rpd
resistor)
Connect to HDMI/DVI I2C CTRLCLK HDMI/DVI I2C CTRLCLK if DDI1_DDC_AUX_SEL is pulled high
I/O PCIE AC coupled on Module
PU 100K to 3.3V
(S/W IC between Rpu/PCH) Connect to DP AUX- DP AUX- function if DDI1_DDC_AUX_SEL is no connect
I/O OD CMOS 3.3V / 3.3V
PU 2.2K to 3.3V/PU 100K to 3.3V
(S/W IC between 2.2K/100K
resistor) Connect to HDMI/DVI I2C CTRLDATA HDMI/DVI I2C CTRLDATA if DDI1_DDC_AUX_SEL is pulled high
DDI1_HPD C24 I CMOS 3.3V / 3.3V PD 100K PD 1M and Connect to device Hot Plug Detect DDI Hot-Plug Detect
DDI1_DDC_AUX_SEL D34 I CMOS 3.3V / 3.3V PD 1M
PU 100K to 3.3V for DDC(HDMI/DVI) Selects the function of DDI1_CTRLCLK_AUX+ and DDI1_CTRLDATA_AUX-.
DDI[n]_DDC_AUX_SEL shall be pulled to 3.3V on the Carrier with a 100K Ohm
resistor to configure the DDI[n]_AUX pair as the DDC channel.
Carrier DDI[n]_DDC_AUX_SEL should be connected to pin 13 of the DisplayPort
DDI2_PAIR0+ D39 Connect AC Coupling Capacitors 0.1uF to Device
DDI2_PAIR0- D40 Connect AC Coupling Capacitors 0.1uF to Device
DDI2_PAIR1+ D42 Connect AC Coupling Capacitors 0.1uF to Device
DDI2_PAIR1- D43 Connect AC Coupling Capacitors 0.1uF to Device
DDI2_PAIR2+ D46 Connect AC Coupling Capacitors 0.1uF to Device
DDI2_PAIR2- D47 Connect AC Coupling Capacitors 0.1uF to Device
DDI2_PAIR3+ D49 Connect AC Coupling Capacitors 0.1uF to Device
DDI2_PAIR3- D50 Connect AC Coupling Capacitors 0.1uF to Device
ȟ
ȟ
ȟ
ȟ
AC coupled off Module
O PCIE
O PCIE AC coupled off Module DDI 1 Pair 3 differential pairs/Serial Digital Video B clock output differential pair.
I PCIE
I PCIE AC coupled off Module
AC coupled off Module
DDI Signals Descriptions
O PCIE
DDI 2 Pair 0 differential pairs/Serial Digital Video B red output differential pair
AC coupled off Module DDI 1 Pair 0 differential pairs/Serial Digital Video B red output differential pair
I PCIE
O PCIE AC coupled off Module DDI 2 Pair 2 differential pairs/Serial Digital Video B blue output differential pair
O PCIE AC coupled off Module DDI 2 Pair 1 differential pairs/Serial Digital Video B grenn output differential pair
DDI1_CTRLCLK_AUX+/SDVO1_CTRLCLK D15
DDI1_CTRLCLK_AUX-/SDVO1_CTRLDATA D16
AC coupled off Module DDI 1 Pair 2 differential pairs/Serial Digital Video B blue output differential pair
O PCIE AC coupled off Module DDI 1 Pair 1 differential pairs/Serial Digital Video B green output differential pair
O PCIE AC coupled off Module
O PCIE AC coupled off Module DDI 2 Pair 3 differential pairs/Serial Digital Video B clock output differential pair
NA (No support)
O PCIE AC coupled on Module NA (No support)
I PCIE AC coupled off Module NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
NA (No support)
I PCIE AC coupled off Module NA (No support)
O PCIE AC coupled on Module NA (No support)
I PCIE AC coupled off Module
O PCIE AC coupled on Module NA (No support)

18
Chapter 3
HARDWARE INSTALLATION
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20
Chapter 3
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
ȟ
ȟ
ȟ
ȟ
DDI Si
g
nals Descri
p
tion
s
I/O PCIE AC coupled on Module PD 100K to GND
(S/W IC between Rpu/PCH) Connect to DP AUX+ DP AUX+ function if DDI2_DDC_AUX_SEL is no connect
I/O OD CMOS 3.3V / 3.3V
PU 2.2K to 3.3V, PD 100K to GND
(S/W IC between Rpu/Rpd
resistor)
Connect to HDMI/DVI I2C CTRLCLK HDMI/DVI I2C CTRLCLK if DDI2_DDC_AUX_SEL is pulled high
I/O PCIE AC coupled on Module PU 100K to 3.3V
(S/W IC between Rpu/PCH) Connect to DP AUX- DP AUX- function if DDI2_DDC_AUX_SEL is no connect
I/O OD CMOS 3.3V / 3.3V
PU 2.2K to 3.3V/PU 100K to 3.3V
(S/W IC between 2.2K/100K
resistor) Connect to HDMI/DVI I2C CTRLDATA HDMI/DVI I2C CTRLDATA if DDI2_DDC_AUX_SEL is pulled high
DDI2_HPD D44 I CMOS 3.3V / 3.3V PD 100K PD 1M and Connect to device Hot Plug Detect DDI Hot-Plug Detect
DDI2_DDC_AUX_SEL C34 I CMOS 3.3V / 3.3V PD 1M to GND
PU 100K to 3.3V for DDC(HDMI/DVI) Selects the function of DDI2_CTRLCLK_AUX+ and DDI2_CTRLDATA_AUX-.
DDI[n]_DDC_AUX_SEL shall be pulled to 3.3V on the Carrier with a 100K Ohm
resistor to configure the DDI[n]_AUX pair as the DDC channel.
Carrier DDI[n]_DDC_AUX_SEL should be connected to pin 13 of the DisplayPort
DDI3_PAIR0+ C39 Connect AC Coupling Capacitors 0.1uF to Device
DDI 3 Pair 0 differential pairs/Serial Digital Video B red output differential pair
DDI3_PAIR0- C40 Connect AC Coupling Capacitors 0.1uF to Device
DDI3_PAIR1+ C42 Connect AC Coupling Capacitors 0.1uF to Device
DDI 3 Pair 1 differential pairs/Serial Digital Video B green output differential pair
DDI3_PAIR1- C43 Connect AC Coupling Capacitors 0.1uF to Device
DDI3_PAIR2+ C46 Connect AC Coupling Capacitors 0.1uF to Device
DDI 3 Pair 2 differential pairs/Serial Digital Video B blue output differential pair
DDI3_PAIR2- C47 Connect AC Coupling Capacitors 0.1uF to Device
DDI3_PAIR3+ C49 Connect AC Coupling Capacitors 0.1uF to Device DDI 3 Pair 3 differential pairs/Serial Digital Video B clock output differential pair
DDI3_PAIR3- C50 Connect AC Coupling Capacitors 0.1uF to Device
I/O PCIE AC coupled on Module PD 100K to GND
(S/W IC between Rpu/PCH) Connect to DP AUX+ DP AUX+ function if DDI3_DDC_AUX_SEL is no connect
I/O OD CMOS 3.3V / 3.3V PU 2.2K to 3.3V, PD 100K to GND
(S/W IC between Rpu/Rpd resistor)
Connect to HDMI/DVI I2C CTRLCLK HDMI/DVI I2C CTRLCLK if DDI3_DDC_AUX_SEL is pulled high
I/O PCIE AC coupled on Module PU 100K to 3.3V
(S/W IC between Rpu/PCH) Connect to DP AUX- DP AUX- function if DDI3_DDC_AUX_SEL is no connect
I/O OD CMOS 3.3V / 3.3V PU 2.2K to 3.3V/PU 100K to 3.3V
(S/W IC between 2.2K/100K resistor)
Connect to HDMI/DVI I2C CTRLDATA HDMI/DVI I2C CTRLDATA if DDI3_DDC_AUX_SEL is pulled high
DDI3_HPD C44 I CMOS 3.3V / 3.3V PD 1M and Connect to device Hot Plug Detect DDI Hot-Plug Detect
DDI3_DDC_AUX_SEL C38 I CMOS 3.3V / 3.3V PD 1M to GND PU 100K to 3.3V for DDC(HDMI/DVI) Selects the function of DDI3_CTRLCLK_AUX+ and DDI3_CTRLDATA_AUX-. DDI[n]_DDC_AUX_SEL
shall be pulled to 3.3V on the Carrier with a 100K Ohm resistor to configure the DDI[n]_AUX pair as
the DDC channel. Carrier DDI[n]_DDC_AUX_SEL should be connected to pin 13 of the DisplayPort
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
USB0+ A46
USB0- A45
USB1+ B46
USB1- B45
USB2+ A43
USB2- A42
USB3+ B43
USB3- B42
USB4+ A40
USB4- A39
USB5+ B40
USB5- B39
USB6+ A37
USB6- A36
USB7+ B37
USB7- B36
ȟ
ȟ
ȟ
ȟ
DDI3_CTRLCLK_AUX+ C36
DDI3_CTRLCLK_AUX- C37
O PCIE AC coupled off Module
O PCIE AC coupled off Module
AC coupled off Module
O PCIE AC coupled off Module
DDI2_CTRLCLK_AUX+ C32
DDI2_CTRLCLK_AUX- C33
O PCIE
I/O USB 3.3V Suspend/3.3V Connect 90ಳ@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 7, USB7 may be configured as a USB client or as a host, or both, at the
Module designer's discretion.(CR901-B default set as a host)
I/O USB
I/O USB 3.3V Suspend/3.3V Connect 90ಳ@100MHz Common Choke in series and ESD suppressors to GND to USB
connector USB differential pairs 2
I/O USB 3.3V Suspend/3.3V Connect 90ಳ@100MHz Common Choke in series and ESD suppressors to GND to USB
connector USB differential pairs 1
I/O USB 3.3V Suspend/3.3V Connect 90ಳ@100MHz Common Choke in series and ESD suppressors to GND to USB
connector USB differential pairs 6
3.3V Suspend/3.3V Connect 90ಳ@100MHz Common Choke in series and ESD suppressors to GND to USB
connector USB differential pairs 4
I/O USB 3.3V Suspend/3.3V Connect 90ಳ@100MHz Common Choke in series and ESD suppressors to GND to USB
connector USB differential pairs 3
I/O USB 3.3V Suspend/3.3V Connect 90ಳ@100MHz Common Choke in series and ESD suppressors to GND to USB
connector USB differential pairs 5
USB Si
g
nals Descri
p
tion
s
I/O USB 3.3V Suspend/3.3V Connect 90ಳ@100MHz Common Choke in series and ESD suppressors to GND to USB
connector USB differential pairs 0
PD 100K

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Chapter 3
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21
Chapter 3
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
ȟ
ȟ
ȟ
ȟ
USB Si
g
nals Descri
p
tion
s
USB_0_1_OC# B44 I CMOS 3.3V Suspend/3.3V PU 10k to 3.3VSB Connect to Overcurrent of USB Power Switch
USB over-current sense, USB channels 0 and 1. A pull-up for this line
shall be present on the Module. An open drain driver from a USB
current monitor on the Carrier Board may drive this line low. Do not
pull this line high on the Carrier Board.
USB_2_3_OC# A44 I CMOS 3.3V Suspend/3.3V PU 10k to 3.3VSB Connect to Overcurrent of USB Power Switch
USB over-current sense, USB channels 2 and 3. A pull-up for this line
shall be present on the Module. An open drain driver from a USB
current monitor on the Carrier Board may drive this line low. Do not
p
ull this line hi
g
h on the Carrier Board.
USB_4_5_OC# B38 I CMOS 3.3V Suspend/3.3V PU 10k to 3.3VSB Connect to Overcurrent of USB Power Switch
USB over-current sense, USB channels 4 and 5. A pull-up for this line
shall be present on the Module. An open drain driver from a USB
current monitor on the Carrier Board may drive this line low. Do not
pull this line high on the Carrier Board.
USB_6_7_OC# A38 I CMOS 3.3V Suspend/3.3V PU 10k to 3.3VSB Connect to Overcurrent of USB Power Switch
USB over-current sense, USB channels 6 and 7. A pull-up for this line
shall be present on the Module. An open drain driver from a USB
current monitor on the Carrier Board may drive this line low. Do not
pull this line high on the Carrier Board.
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
LVDS_A0+ A71
LVDS_A0- A72
LVDS_A1+ A73
LVDS_A1- A74
LVDS_A2+ A75
LVDS_A2- A76
LVDS_A3+ A78
LVDS_A3- A79
LVDS_A_CK+ A81
LVDS_A_CK- A82
LVDS_B0+ B71
LVDS_B0- B72
LVDS_B1+ B73
LVDS_B1- B74
LVDS_B2+ B75
LVDS_B2- B76
LVDS_B3+ B77
LVDS_B3- B78
LVDS_B_CK+ B81
LVDS_B_CK- B82
LVDS_VDD_EN A77 O CMOS 3.3V / 3.3V Connect to enable control of LVDS panel power circuit LVDS panel power enable
LVDS_BKLT_EN B79 O CMOS 3.3V / 3.3V Connect to enable control of LVDS panel backlight power circuit. LVDS panel backlight enable
LVDS_BKLT_CTRL B83 O CMOS 3.3V / 3.3V Connect to brightness control of LVDS panel backlight power circuit. LVDS panel backlight brightness control
LVDS_I2C_CK A83 I/O OD CMOS 3.3V / 3.3V PU 2.2K to 3.3V Connect to DDC clock of LVDS panel I2C clock output for LVDS display use
LVDS_I2C_DAT A84 I/O OD CMOS 3.3V / 3.3V PU 2.2K to 3.3V Connect to DDC data of LVDS panel I2C data line for LVDS display use
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
LPC_AD0 B4
LPC_AD1 B5
LPC_AD2 B6
LPC_AD3 B7
LPC_FRAME# B3 O CMOS 3.3V / 3.3V LPC frame indicates the start of an LPC cycle
LPC_DRQ0# B8
LPC_DRQ1# B9
LPC_SERIRQ A50 I/O CMOS 3.3V / 3.3V LPC serial interrupt
LPC_CLK B10 O CMOS 3.3V / 3.3V LPC clock output - 33MHz nominal
ȟ
ȟ
ȟ
ȟ
3.3V / 3.3V NA (No support)
O LVDS LVDS Connect to LVDS connector
O LVDS LVDS Connect to LVDS connector
I/O CMOS 3.3V / 3.3V
LVDS Channel B differential clock
LPC Si
g
nals Descri
p
tion
s
Connect to LVDS connector
LVDS Channel B differential pairs
Ther LVDS flat panel differential pairs (LVDS_A[0:3]+/-, LVDS_B[0:3]+/-. LVDS_A_CK+/-,
LVDS_B_CK+/-) shall have 100ƻterminations across the pairs at the destination. These
terminations may be on the Carrier Board if the Carrier Board implements a LVDS deserializer
on-board
O LVDS LVDS Connect to LVDS connector
Connect to LVDS connector
O LVDS LVDS
LVDS
Connect to LVDS connector
O LVDS LVDS
LVDS Channel A differential clockO LVDS LVDS Connect to LVDS connector
I CMOS
LVDS Si
g
nals Descri
p
tion
s
O LVDS LVDS Connect to LVDS connector LVDS Channel A differential pairs
Ther LVDS flat panel differential pairs (LVDS_A[0:3]+/-, LVDS_B[0:3]+/-. LVDS_A_CK+/-,
LVDS_B_CK+/-) shall have 100ƻterminations across the pairs at the destination. These
terminations may be on the Carrier Board if the Carrier Board implements a LVDS deserializer
on-board
O LVDS Connect to LVDS connector
O LVDS LVDS
Connect to LVDS connector
Connect to LPC device
LPC multiplexed address, command and data bus
O LVDS LVDS

20
Chapter 3
HARDWARE INSTALLATION
User's Manual | TGU968
www.dfi.comChapter 3 Hardware Installation
22
Chapter 3
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
SPI_CS# B97 O CMOS 3.3V Suspend/3.3V Connect a series resistor 33ȟ
ȟ
to Carrier Board SPI Device CS# pin Chip select for Carrier Board SPI - may be sourced from chipset SPI0 or SPI1
SPI_MISO A92 I CMOS 3.3V Suspend/3.3V Connect a series resistor 33ȟ
ȟ
to Carrier Board SPI Device SO pin Data in to Module from Carrier SPI
SPI_MOSI A95 O CMOS 3.3V Suspend/3.3V Connect a series resistor 33ȟ
ȟ
to Carrier Board SPI Device SI pin Data out from Module to Carrier SPI
SPI_CLK A94 O CMOS 3.3V Suspend/3.3V Connect a series resistor 33ȟ
ȟ
to Carrier Board SPI Device SCK pin Clock from Module to Carrier SPI
SPI_POWER A91 O 3.3V Suspend/3.3V
Power supply for Carrier Board SPI – sourced from Module – nominally
3.3V. The Module shall provide a minimum of 100mA on SPI_POWER.
Carriers shall use less than 100mA of SPI_POWER. SPI_POWER
shall only be used to power SPI devices on the Carrier
BIOS_DIS0# A34
BIOS_DIS1# B88
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
VGA_RED B89 O Analog Analog PD 150R PD 150R,connect to VGA connector with EMI filter & ESD protect component. Red for monitor. Analog output
VGA_GRN B91 O Analog Analog PD 150R PD 150R,connect to VGA connector with EMI filter & ESD protect component. Green for monitor. Analog output
VGA_BLU B92 O Analog Analog PD 150R PD 150R,connect to VGA connector with EMI filter & ESD protect component. Blue for monitor. Analog output
VGA_HSYNC B93 O CMOS 3.3V / 3.3V Connect to VGA connector with a3.3V Buffer IC to isolate PCH & Display Device Horizontal sync output to VGA monitor
VGA_VSYNC B94 O CMOS 3.3V / 3.3V Connect to VGA connector with a 33V Buffer IC to isolate PCH & Display Device Vertical sync output to VGA monitor
VGA_I2C_CK B95 I/O OD CMOS 3.3V / 3.3V PD 2.2K to 3.3V Connect to VGA connector with a 3.3V to 5V Level shift circuit. DDC clock line (I2C port dedicated to identify VGA monitor capabilities)
VGA_I2C_DAT B96 I/O OD CMOS 3.3V / 3.3V PD 2.2K to 3.3V Connect to VGA connector with a 3.3V to 5V Level shift circuit. DDC data line.
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
SER0_TX A98 O CMOS 5V / 12V PD 4.7K General purpose serial port 0 transmitter
(
Recommend add Protectin
g
Lo
g
ic Level Si
g
nals on Pins Reclaimed from VCC
_
12V
)
SER0_RX A99 I CMOS 5V / 12V PU 47K to 3.3V General purpose serial port 0 receiver
(
Recommend add Protectin
g
Lo
g
ic Level Si
g
nals on Pins Reclaimed from VCC
_
12V
)
SER1_TX A101 O CMOS 5V / 12V PD 4.7K General purpose serial port 1 transmitter
(
Recommend add Protectin
g
Lo
g
ic Level Si
g
nals on Pins Reclaimed from VCC
_
12V
)
SER1_RX A102 I CMOS 5V / 12V PU 47K to 3.3V General purpose serial port 1 receiver
(
Recommend add Protectin
g
Lo
g
ic Level Si
g
nals on Pins Reclaimed from VCC
_
12V
)
Signal Pin# Module Pin Type Pwr Rail /Tolerance TGU968 Carrier Board Description
I2C_CK B33 I/O OD CMOS 3.3V Suspend/3.3V PU 2.2K to 3.3VSB General purpose I2C port clock output
I2C_DAT B34 I/O OD CMOS 3.3V Suspend/3.3V PU 2.2K to 3.3VSB General purpose I2C port data I/O line
SPKR B32 O CMOS 3.3V / 3.3V
Output for audio enunciator - the "speaker" in PC-AT systems.
This port provides the PC beep signal and is mostly intended for
debugging purposes.
WDT B27 O CMOS 3.3V / 3.3V Output indicating that a watchdog time-out event has occurred.
FAN_PWNOUT B101 O OD CMOS 3.3V / 3.3V Fan s
p
eed control. Uses the Pulse Width Modulation
(
PWM
)
techni
q
ue to control the fan's RPM.
(
Recommend add Protectin
g
Lo
g
ic Level Si
g
nals on Pins Reclaimed from VCC
_
12V
)
FAN_TACHIN B102 I OD CMOS 3.3V / 3.3V Fan tachometer input for a fan with a two pulse output.
(Recommend add Protecting Logic Level Signals on Pins Reclaimed from VCC_12V)
TPM_PP A96 I CMOS 3.3V / 3.3V PD 10K
Trusted Platform Module (TPM) Physical Presence pin. Active high.
TPM chip has an internal pull down. This signal is used to indicate
Physical Presence to the TPM.
SPI Si
g
nals Descri
p
tion
s
V
GA Si
g
nals Descri
p
tion
s
NA
Selection straps to determine the BIOS boot device.
The Carrier should only float these or pull them low, please refer to
COM Express Module Base Specification Revision 2.1 for strapping options of BIOS disable signals.
Serial Interface Si
g
nals Descri
p
tion
s
Miscellaneous Si
g
nal Descri
p
tion
s
I CMOS
Ref
Line
Bios
Entry
SPI
Descriptor
Carrier
SPI_CS#
Chipset
SPI CS0#
Destination
Chipset
SPI CS1#
Destination
BIOS
DIS0#
BIOS
DIS1#
1
1
1
1
00
0
0
ModuleModule SPI0/SPI1
SPI1
(Defaul t)
SPI0
High
High
CarrierCarrier
Carrier
(Default)
Module
(Default)
Module
Module
Module
(Default)
Module
ModuleModule
3
2
1
0
Carrier FWH
SPI0/SPI1
(Default)
SPI0/SPI1