Advantech SOM-6883 User manual

User Manual
SOM-6883
CPU Computer on Module

SOM-6883 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2021
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. How-
ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe-
ments of the rights of third parties, which may result from its use.
Acknowledgments
AMD is a trademark of the AMD Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.
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 pur-
chase.
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 defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-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 a return merchandise authori-
zation (RMA) 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.
Part No. 2006688300 Edition 1
Printed in Taiwan April 2021

iii SOM-6883 User Manual
Declaration of Conformity
CE
This product has passed the CE test for environmental specifications when shielded
cables are used for external wiring. We recommend the use of shielded cables. This
type of cable is available from Advantech. Please contact your local supplier for
ordering information.
Test conditions for passing also include operating the equipment within an industrial
enclosure. In order to protect the product from damage caused by electrostatic dis-
charge (ESD) and EMI leakage, we strongly recommend the use of CE-compliant
industrial enclosure products.
FCC Class B
This equipment has been tested and found to comply with the limits for a Class B dig-
ital device, pursuant to part 15 of the FCC Rules. These limits are designed to pro-
vide reasonable protection against harmful interference 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 interfer-
ence 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 encouraged 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 receiver
Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected
Consult the dealer or an experienced radio/TV technician for assistance
FM
This equipment has passed the FM certification. According to the National Fire Pro-
tection Association, work sites are classified into different classes, divisions and
groups, based on hazard considerations. This equipment is compliant with the speci-
fications of Class I, Division 2, Groups A, B, C, and D indoor hazards.
Technical Support and Assistance
1. Visit the Advantech website at http://support.advantech.com to find the latest
product information.
2. 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

SOM-6883 User Manual iv
Warnings, Cautions, and Notes
Document Feedback
To assist us in making improvements to this manual, we welcome comments and
constructive criticism. Please send all such in writing to: [email protected]
Safety Precaution — Static Electricity
Follow these simple precautions to protect yourself from harm and the products from
damage:
To avoid electrical shock, always disconnect the power from your PC chassis
before you work on it. Don't touch any components on the CPU card or other
cards while the PC is on.
Disconnect power before making any configuration changes. The sudden rush
of power as you connect a jumper or install a card may damage sensitive elec-
tronic components.
Warning! Warnings indicate conditions, which if not observed, that can cause per-
sonal injury!
Caution! Cautions should be noted to avoid damaging hardware or losing data.
e.g.
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 man-
ufacturer. Discard used batteries according to the manufacturer's
instructions.
Note! Notes provide optional additional information.

v SOM-6883 User Manual
Safety Instructions
1. Read these safety instructions carefully.
2. Keep this User Manual for later reference.
3. Disconnect this equipment from any AC outlet before cleaning. Use a damp
cloth. Do not use liquid or spray detergents for cleaning.
4. For plug-in equipment, the power outlet socket must be located near the equip-
ment and must be easily accessible.
5. Keep this equipment away from humidity.
6. Put this equipment on a reliable surface during installation. Dropping it or letting
it fall may cause damage.
7. The openings on the enclosure are for air convection. Protect the equipment
from overheating. DO NOT COVER THE OPENINGS.
8. Make sure the voltage of the power source is correct before connecting the
equipment to the power outlet.
9. Position the power cord so that people cannot step on it. Do not place anything
over the power cord.
10. All cautions and warnings on the equipment should be noted.
11. If the equipment is not used for a long time, disconnect it from the power source
to avoid damage by transient overvoltage.
12. Never pour any liquid into an opening. This may cause fire or electrical shock.
13. Never open the equipment. For safety reasons, the equipment should be
opened only by qualified service personnel.
14. If one of the following situations arises, get the equipment checked by service
personnel:
The power cord or plug is damaged
Liquid has penetrated into the equipment
The equipment has been exposed to moisture
The equipment does not work well, or you cannot get it to work according to
the user's manual
The equipment has been dropped and damaged
The equipment has obvious signs of breakage
15. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT WHERE THE
STORAGE TEMPERATURE MAY DROP BELOW -20 °C (-4 °F) OR RISE
ABOVE 60 °C (140 °F). THIS COULD DAMAGE THE EQUIPMENT. THE
EQUIPMENT SHOULD BE KEPT IN A CONTROLLED ENVIRONMENT.
16. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY
REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE
RECOMMENDED BY THE MANUFACTURER, DISCARD USED BATTERIES
ACCORDING TO THE MANUFACTURER'S INSTRUCTIONS.
17. The sound pressure level at the operator's position according to IEC 704-1:1982
is no more than 70 dB (A).
DISCLAIMER: This set of instructions is given according to IEC 704-1. Advantech
disclaims all responsibility for the accuracy of any statements contained herein.

SOM-6883 User Manual vi

vii SOM-6883 User Manual
Contents
Chapter 1 General Information ............................1
1.1 Introduction ............................................................................................... 2
1.2 Functional Block Diagram ......................................................................... 4
1.3 Product Specifications............................................................................... 5
1.3.1 Compliance ................................................................................... 5
1.3.2 Feature List ................................................................................... 5
1.3.3 Processor System......................................................................... 6
1.3.4 Graphics/Audio ............................................................................. 6
1.3.5 Expansion Interface ...................................................................... 7
1.3.6 LPC ............................................................................................... 7
1.3.7 Serial Bus...................................................................................... 7
1.3.8 I/O ................................................................................................. 7
1.3.9 Power Management...................................................................... 9
1.3.10 Environment................................................................................ 10
1.3.11 MTBF .......................................................................................... 10
1.3.12 OS Support (SW Chapter Duplicate) .......................................... 10
1.3.13 Advantech iManager ................................................................... 10
1.3.14 Power Consumption.................................................................... 11
1.3.15 Performance ............................................................................... 11
1.3.16 Selection Guide w/P/N ................................................................ 12
1.3.17 Packing list.................................................................................. 12
1.3.18 Development Board .................................................................... 12
1.3.19 Optional Accessories .................................................................. 12
1.3.20 Pin Description............................................................................ 13
Chapter 2 Mechanical Information ....................15
2.1 Board Information.................................................................................... 16
Figure 2.1 Board Chips Diagram – Front................................... 16
Figure 2.2 Board Chips Diagram – Rear ................................... 16
2.1.1 Connector List............................................................................. 17
Table 2.1: FAN1 Fan ................................................................. 17
2.2 Mechanical Diagram ............................................................................... 17
Figure 2.3 Board Mechanical Drawing – Front .......................... 17
Figure 2.4 Board Mechanical Diagram – Rear .......................... 18
Figure 2.5 Board Mechanical Diagram – Side ........................... 18
2.3 Exploded Diagram................................................................................... 19
Figure 2.6 Assembly Diagram ................................................... 19
2.4 Assembly Diagram.................................................................................. 20
Figure 2.7 10 TGL-UP3 4C Height and Tolerance Diagram...... 20
Chapter 3 AMI BIOS ............................................21
3.1 Introduction ............................................................................................. 22
Figure 3.1 Setup Program Initial Screen................................... 22
3.2 Entering Setup ........................................................................................ 23
3.3 Main Setup.............................................................................................. 23
Figure 3.2 Main Setup Screen .................................................. 23
3.4 Advanced BIOS Features Setup............................................................. 24
Figure 3.3 Advanced BIOS Features Setup Screen ................. 24
3.4.1 RC ACPI Settings ....................................................................... 25
Figure 3.4 RC ACPI Settings .................................................... 25
3.4.2 CPU Configuration ...................................................................... 26

SOM-6883 User Manual viii
Figure 3.5 CPU Configuration_1 ............................................... 26
Figure 3.6 Active Processor Core Setting ................................ 27
3.4.3 Power & Performance................................................................. 28
Figure 3.7 Power & Performance ............................................. 28
Figure 3.8 CPU- Power Management Control.......................... 29
Figure 3.9 Configurable TDP Boot Mode ................................. 30
Figure 3.10 ConfigTDP Turbo Activation Ratio .......................... 30
Figure 3.11 GT- Power Management Control ............................ 31
3.4.4 PCH-FW Configuration ............................................................... 32
Figure 3.12PCH-FW Configuration............................................. 32
Figure 3.13 Firmware Update Configuration .............................. 33
3.4.5 Trusted Computing ..................................................................... 33
Figure 3.14 Trusted Computing.................................................. 33
3.4.6 ACPI Settings ............................................................................. 34
Figure 3.15 ACPI Settings .......................................................... 34
3.4.7 Embedded Controller.................................................................. 35
Figure 3.16 Embedded Controller .............................................. 35
Figure 3.17 Serial Port 1 Configurations .................................... 36
Figure 3.18 Serial Port 2 Configurations .................................... 37
Figure 3.19 Hardware Monitor.................................................... 38
3.4.8 Serial Port Console Redirection.................................................. 38
Figure 3.20 Serial Port Console Redirection .............................. 38
Figure 3.21 Terminal Type Settings ........................................... 39
Figure 3.22 Terminal Type Settings ........................................... 39
Figure 3.23 Data Bits Settings.................................................... 40
Figure 3.24 Parity Settings ......................................................... 40
Figure 3.25 Stop Bits Settings .................................................... 41
Figure 3.26 Flow Control Settings .............................................. 41
Figure 3.27 Putty KeyPad Settings............................................. 42
3.4.9 USB Configuration ...................................................................... 43
Figure 3.28 USB Configuration................................................... 43
Figure 3.29 USB Transfer Time-out Settings ............................. 44
Figure 3.30 Device Power-up Delay Settings............................. 44
3.4.10 NVMe Configuration ................................................................... 45
Figure 3.31 NVMe Configuration ................................................ 45
3.4.11 Network Stack Configuration ...................................................... 46
Figure 3.32 Network Stack Configuration................................... 46
Figure 3.33 Network Stack Configuration Settings..................... 46
3.5 Chipset Settings...................................................................................... 47
Figure 3.34 Chipset Setup.......................................................... 47
3.5.1 System Agent (SA) Configuration............................................... 48
Figure 3.35 System Agent (SA) Configuration ........................... 48
Figure 3.36 Memory Configuration ............................................. 49
Figure 3.37 Graphics Configuration............................................ 49
Figure 3.38 Primary Display ....................................................... 50
Figure 3.39 Internal Graphics Settings ....................................... 50
Figure 3.40 GTT Size Settings ................................................... 51
Figure 3.41 Aperture Size Settings............................................. 51
Figure 3.42 DVMT Pre-Allocated Settings.................................. 52
Figure 3.43 DVMT Toal Gfx Mem Settings................................. 52
Figure 3.44 PM Support Settings ............................................... 53
Figure 3.45 LCD Control Setting ................................................ 54
Figure 3.46 Color Depth and Packing Format Settings .............. 54
Figure 3.47 Dual LVDS Mode Settings....................................... 55
Figure 3.48 LCD Panel Type ...................................................... 55
Figure 3.49 LVDS Clock Spreading Settings.............................. 56
Figure 3.50 LVDS Swing Level Settings..................................... 56
3.5.2 PCH-IO Configuration................................................................. 57
Figure 3.51 PCH-IO Configuration ............................................. 57
Figure 3.52 PCI Express Configuration ...................................... 58

ix SOM-6883 User Manual
Figure 3.53 PCI Express Root Port 0 Configuration ................... 59
Figure 3.54 SATA And RST Configuration ................................. 60
Figure 3.55 USB Configuration................................................... 61
Figure 3.56 Security Configuration Settings ............................... 62
Figure 3.57 HD Audio Configuration........................................... 63
Figure 3.58 Security Configuration Settings ............................... 64
Figure 3.59 Serial I/O Configuration Settings ............................. 65
3.5.3 Security Settings ......................................................................... 66
Figure 3.60 Security Setup ......................................................... 66
3.5.4 Boot Settings............................................................................... 67
Figure 3.61 Security Setup ......................................................... 67
3.5.5 Save & Exit ................................................................................. 68
Figure 3.62 Security Setup ......................................................... 68
Chapter 4 S/W Introduction and Installation ....69
4.1 S/W Introduction...................................................................................... 70
4.2 Driver Installation .................................................................................... 70
4.2.1 Windows Driver Setup ................................................................ 70
4.2.2 Other OS..................................................................................... 70
4.3 Advantech iManager ............................................................................... 71
Appendix A Pin Assignment .................................73
A.1 SOM-6883 Type 6 Pin Assignment......................................................... 74
Appendix B Watchdog Timer ................................79
B.1 Programming the Watchdog Timer ......................................................... 80
Appendix C Programming GPIO ...........................81
C.1 GPIO Register......................................................................................... 82
Appendix D System Assignments ........................83
D.1 System I/O Ports ..................................................................................... 84
Table D.1: System I/O ports....................................................... 84
D.2 Interrupt Assignments ............................................................................. 85
Table D.2: Interrupt Assignments............................................... 85
D.3 1st MB Memory Map............................................................................... 85
Table D.3: 1st MB Memory Map ................................................ 85

SOM-6883 User Manual x

Chapter 1
1General Information
This chapter details the SOM-6883
CPU Computer on Module back-
ground information.
Sections include:
Introduction
Functional Block Diagram
Product Specifications

SOM-6883 User Manual 2
1.1 Introduction
Advantech’s SOM-6883 series feature 11th Gen Intel® Core™/Celeron processors
that leverage 14nm process technology. These solutions support DDR4 3200MT/s
with 1.2V power design, up to 16GB memory down, and 32GB SO-DIMM. In addition,
SOM-6883 augments memory capacity configuration via an i7-1185G7E SKU
upgrade to quad-core. SOM-6883 further provides super speed I/O technology —
such as 2.5Gbase-T TSN LAN, PCIe Gen 4, and USB 3.2 Gen 2.
This solution also integrates 11th Gen. Intel® Core™ processors Iris® Xe Graphics to
empower up to four independent 4K displays or two 8K HDR ports.
This device features Advantech’s iManager (SUSI4). This software meets embedded
application requirements by providing a multi-level watchdog timer, voltage and tem-
perature monitoring, thermal protection, and mitigation via processor throttling, LCD
backlight on/off and brightness control, and embedded storage for customized infor-
mation. When combined with Advantech WISE-DeviceOn, it can remotely monitor
and control devices.

3 SOM-6883 User Manual
Chapter 1 General Information
Acronyms
Term Define
AC’97 Audio CODEC (Coder-Decoder)
ACPI Advanced Configuration Power Interface – standard for implementing power
saving modes in PC-AT systems
BIOS Basic Input Output System – firmware in PC-AT system that is used to initialize
system components before handing control over to the operating system
CAN
Controller-area network (CAN or CAN-bus) is a vehicle bus standard designed
to allow micro-controllers to communicate with each other within a vehicle with-
out a host computer
DDI Digital Display Interface – Contains DisplayPort, HDMI/DVI, and SDVO
EAPI
Embedded Application Programmable Interface
Software interface for COM Express® specific industrial function
System information
Watchdog timer
I2C Bus
Flat Panel brightness control
User storage area
GPIO
GbE Gigabit Ethernet
GPIO General purpose input output
HDA
Intel High Definition Audio (HD Audio) refers to the specification released by
Intel® in 2004 for delivering high definition audio that is capable of playing back
more channels at higher quality than AC’97
I2C
Inter-Integrated Circuit – 2 wire (clock and data) signaling scheme allowing
communication between integrated circuit, primarily used to read and load reg-
ister values
ME Management Engine
PC-AT “Personal Computer – Advanced Technology” – an IBM trademark term used
to refer to Intel based personal computer in 1990s
PEG PCI Express Graphics
RTC Real Time Clock – battery backed circuit in PC-AT systems that keeps system
time and date as well as certain system setup parameters
SPD Serial Presence Detect – refers to serial EEPROM on DRAMs that has DRAM
Module configuration information
TPM Trusted Platform Module, chip to enhance the security features of a computer
system
UEFI Unified Extensible Firmware Interface
WDT Watchdog Timer

SOM-6883 User Manual 4
1.2 Functional Block Diagram

5 SOM-6883 User Manual
Chapter 1 General Information
1.3 Product Specifications
1.3.1 Compliance
PICMG COM.0 (COM Express) Revision 3.0
Compact Size – 95 x 95 mm (3.7 x 3.7 in)
Pin-out type 6 compatible
1.3.2 Feature List
Feature
Type
Connector
Row Feature
Type 6 Define
SOM-6883
Max. Min.
Display
A-B LVDS Channel A (18/24-bit) 1 0 1
A-B LVDS Channel B (18/24-bit) 1 0 1
A-B eDP (muxed on LVDS Channel
A) 101
A-B VGA 1 0 1
Expansion A-B PCI Express x1 6 1 6
A-B LPC 1 1 1
Serial
A-B SMBus 1 1 1
A-B I2C Bus 1 1 1
A-B Serial Port 2 0 2
A-B CAN Bus (mixed on SER1) 1 0 1
I/O
A-B LAN Port 0 (Gigabit Ethernet) 1 1 1
A-B SATA 4 1 2
A-B USB 2.0 8 4 8
A-B USB Client 1 0 0
A-B HD Audio 1 0 1
A-B SPI Bus 2 1 1
A-B General Purpose I/O (GPIO) 8 8 8
A-B SDIO (muxed on GPIO) 1 0 0
A-B Express Card Support 2 1 2
A-B Watchdog Timer Output 1 0 1
A-B Speaker Out 1 1 1
A-B External BIOS ROM Support 2 0 2
A-B Power Button Support 1 1 1
A-B Power Good 1 1 1
A-B VCC_5V_SBY Contacts 4 4 4
A-B Sleep 1 0 1
A-B Thermal Protection 1 0 1
A-B Lid Input 1 0 1
A-B Battery Low Alarm 1 0 1
A-B Suspend/Wake Signals 3 0 3
A-B Fan PWM / Tachometer 2 0 2
A-B Trusted Platform Modules 1 0 1
Display C-D Digital Display Interfaces 1 - 3 3 0 3

SOM-6883 User Manual 6
1.3.3 Processor System
*TDP can be configured up to 28W or down to 12W.
1.3.4 Graphics/Audio
Iris® Xe Graphics uses high-performance, low-power HW acceleration for video
decoding operations to accommodate multiple video codecs.
The HW encode is exposed via the graphics driver using the following APIs:
Intel Media SDK
MFT (Media Foundation Transform) filters
Iris® Xe Graphics supports full HW accelerated video encoding for AVC/MPEG2/
HEVC/VP8/JPEG.
Feature
Type
Connector
Row Feature
Type 6 Define
SOM-6883
Max. Min.
I/O
C-D PEG (PCI Express x16) 1 0 0
C-D PCI Express x1 2 0 2
C-D USB 3.0 (Gen2, 10Gbps) 4 0 4
C-D Rapid Shutdown 1 0 1
CPU Std. Freq. Max. Turbo Freq. Core Cache (MB) TDP(W)
i7-1185G7E 1.8GHz 4.4GHz 4 12 15*
i5-1145G7E 1.5GHz 4.1GHz 4 8 15*
i3-1115G4E 2.2GHz 3.9Ghz 2 6 15*
Celeron® 6305E 1.8GHz N/A 2 4 15
i7-1185GRE 1.8GHz 4.4GHz 4 12 15*
i5-1145GRE 1.5GHz 4.1GHz 4 8 15*
i3-1115GRE 2.2GHz 3.9Ghz 2 6 15*
CPU Graphic Core Base Freq. Max Freq.
i7-1185G7E Iris® Xe Graphics 1.8GHz 4.4GHz
i5-1145G7E Iris® Xe Graphics 1.5GHz 4.1GHz
i3-1115G4E Iris® Xe Graphics 2.2GHz 3.9GHz
Celeron® 6305E Intel® UHD Graphics 1.8GHz N/A
i7-1185GRE Iris® Xe Graphics 1.8GHz 4.4GHz
i5-1145GRE Iris® Xe Graphics 1.5GHz 4.1GHz
i3-1115GRE Intel® UHD Graphics 2.2GHz 3.9GHz

7 SOM-6883 User Manual
Chapter 1 General Information
1.3.5 Expansion Interface
PCIe x1
PCI Express x1: Supports 5 x ports PCIe x1 and is compliant with PCIe Gen3 (8.0
GT/s) specifications. It is configurable to PCIe x4 or PCIe x2. Several configurable
combinations may need BIOS modifications. Please contact Advantech sales or FAE
for further details.
1.3.6 LPC
Supports Low Pin Count (LPC) 1.1 specifications without DMA or bus mastering.
Supports connection to Super I/O, embedded controller, or TPM. The LPC clock is
24MHz.
1.3.7 Serial Bus
1.3.7.1 SMBus
Supports SMBus 2.0 specifications with alert pin.
1.3.7.2 I2C Bus
Supports I2C bus 7/10-bit address modes at both 100 and 400KHz.
1.3.8 I/O
1.3.8.1 Gigabit Ethernet
Ethernet: Intel I225IT Gigabit LAN supports 10/100/1000/2.5G Mbps Speed.
1.3.8.2 SATA
Supports up to 2 x ports SATA Gen 3 (6.0 Gb/s), backward compliant to SATA Gen 2
(3.0 Gb/s) and Gen 1 (1.5 Gb/s). The maximum data rate is 600 MB/s. It supports
AHCI 1.3 and 1.3.1 mode.
1.3.8.3 USB 3.0 (3.1 Gen 2) and USB 2.0
SOM-6883 supports 4 x USB 3.2 Gen 2 (10 Gbps) ports and 8 x USB 2.0 (480 Mbps)
ports. These are backwards compatible with USB 1.x. USB 3.1 supports LPM (U0,
U1, U2, and U3) manageability to conserve power.
Notice: Use a certified cable to maximize USB 3.2 Gen 2 performance.
1.3.8.4 USB 3.1
Type 6 Row A,B Row C,D
P0 P1 P2 P3 P4 P5 P6 P7
Default
Config.
X1 X1 X1 X1 2.5G LAN X1 SATA#0 SATA#1
Option 1 X1 X1 X2 X1 X1 X2
Option 2 X2 X2 X2 X2
Option 3 X4 X4
Type 6 P0 P1 P2 P3
SoC P0 P1 P2 P3
Type 6 USB_OC#01
USB_OC#01
USB_OC#23
USB_OC#23
SoC USB_OC#

SOM-6883 User Manual 8
1.3.8.5 USB 2.0
1.3.8.6 SPI Bus
Supports BIOS flash only. The SPI clock can be 17, 30, or 48MHz; with a capacity up
to 16MB.
1.3.8.7 GPIO
8 x programmable general purpose input or output (GPIO).
1.3.8.8 Watchdog
Supports multi-level watchdog time-out output. Provides 1-65535 level, from 100 mil-
liseconds to 109.22 minutes interval.
1.3.8.9 Serial Port
2 x 16550 UART compliant 2-wire serial port (Tx/Rx):
Programmable FIFO or character mode
16-byte FIFO buffer on transmitter and receiver in FIFO mode
Programmable serial-interface characteristics: 5, 6, 7, or 8-bit character
Even, odd, or no parity bit selectable
1, 1.5, or 2 stop bit selectable
Baud rate up to 115.2K
1.3.8.10 TPM
Supports TPM 2.0 module by default.
1.3.8.11 Smart Fan
Supports 2 x fan PWM control signals and 2 x tachometer inputs for fan speed detec-
tion. Provides 1 x on module with connector and 1 x on carrier board to meet PICMG
COM Express R3.0 specifications.
Add thermal comparison chart/clear CMOS.
1.3.8.12 BIOS
There is a BIOS chip on the module by default. Users can place the BIOS chip on a
carrier boards with appropriate designs and jumper settings on BIOS_DIS#[1:0].
Notice: We recommend going to the BIOS setup menu and loading the default set-
tings during the first boot up if the system COMS are cleared.
Type 6 P0 P1 P2 P3 P4 P5 P6 P7
SoC P0 P1 P2 P3 P4 P5 P6 P7
Type 6 USB_OC#01
USB_OC#01
USB_OC#23
USB_OC#23
USB_OC#45
USB_OC#45
USB_OC#67
USB_OC#67
SoC USB_OC#
BIOS_DIS0# BIOS_DIS#1 Boot up destination/function
Open Open Boot from Module’s SPI BIOS
Open GND SPI_CS0# to Carrier Board, SPI_CS1# to Module
GND GND SPI_CS0# to Module, SPI_CS1# to Carrier Board

9 SOM-6883 User Manual
Chapter 1 General Information
1.3.8.13 Clear CMOS
IBECC channel 0 must be higher than or equal to channel 1.
*Contact local AE for support
1.3.9 Power Management
1.3.9.1 Power Supply
Supports both ATX and AT power modes. The VSB function is for suspend power
and is optional if not required by standby (suspend-to-RAM) support. The RTC Bat-
tery is optional if keeping the time and date is not required.
VCC: 8.5 ~ 20V
VSB: 4.75 ~ 5.25V (Suspend power)
RTC Battery Power: 2.0 ~ 3.3V
1.3.9.2 PWROK
Power OK (PWROK) measures the main power supply. A high value indicates suffi-
cient power. This signal can be used to delay module startup in order to program the
time of carrier based FPGAs or other configurable devices.
1.3.9.3 Power Sequence
Adheres to PICMG COM Express R3.0 specifications.
1.3.9.4 Wake Event
Diverse wake-up event support allows users to apply the solution to different scenar-
ios:
Wake-on-LAN (WOL): Wake to S0 from S3/S4/S5
Setting Type Jumper Setting Clear RTC CMOS
(Time and Date) BIOS Setting Load Default
Default Settings Without jumper V N/A
Optional Settings Jumper 1-2 V V

SOM-6883 User Manual 10
USB Wake: Wake to S0 from S3/S4
PCIe Device Wake: According to user inquiry and BIOS customization
LPC Wake: According to user inquiry and BIOS customization
1.3.9.5 Advantech S5 ECO Mode (Deep Sleep Mode)
Advantech iManager features a mechanism that allows the system to enter a very
low suspended power mode, or “S5 ECO mode”. In this mode, the module will cut
power entering the chipset — including suspend and active power — and keep an
on-module controller active. In this mode, the device will only consume 50mW to
enable a longer battery pack lifespan. This mode is enabled using BIOS. In this mode
the system (or module) needs to use the power button to boot up.
1.3.10 Environment
1.3.10.1 Temperature
Operating: 0 ~ 60 °C (32 ~ 140 °F), with an active heat sink under 0.7m/s air
flow chamber
Storage: -40 ~ 85 °C (-40 ~ 185 °F)
1.3.10.2 Humidity
Operating: 40 °C @ 95% relative humidity, non-condensing
Storage: 60 °C @ 95% relative humidity, non-condensing
1.3.10.3 Vibrations
IEC60068-2-64: Random vibration test during operation at 3.5 Grms
1.3.10.4 Drop Test (Shock)
Federal Standard 101 method 5007 test procedure with standard packing
1.3.10.5 EMC
CE EN55022 Class B and FCC Certifications: validated using standard develop-
ment boards on an Advantech chassis
1.3.11 MTBF
Please refer to the Advantech SOM-6883 Series Reliability Prediction Report
No: TBD. (Estimated date: TBD)
1.3.12 OS Support (SW Chapter Duplicate)
Connect to Internet and visit this website: http://support.advantech.com.tw to down-
load a setup file and install drivers.
1.3.13 Advantech iManager
iManager supports APIs for GPIO, smart-fan control, multi-stage watchdog timer, and
output, temperature sensor, hardware monitor, etc. Follow by PICMG EAPI 1.0 spec-
ification to enable backwards compatibility.