MEN Mikro G25A Manual

20G025A00 E1 2016-05-11
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G25A
3U CompactPCI Serial Intel Xeon D CPU Board
User Manual
G25A – 3U CompactPCI Serial Intel Xeon D CPU Board
G25A – 3U CompactPCI Serial Intel Xeon D CPU Board
The G25A is a high-performance multicore CPU platform based on Intel’s Xeon D-1500
System-on-a-Chip (SoC). The G25A is the first member of a new family of CPU boards for
CompactPCI Serial specifically designed for high data bandwidth based on PCIe 3.0, PCIe
2.0 and Gigabit Ethernet via the backplane. The G25A provides high data bandwidth on
the front panel via two 10 Gigabit Ethernet interfaces on RJ45 or M12 connectors. The
G25A paired with I/O cards can be ideally used for transferring data from and to storage
media, the Internet via LTE, WiFi, copper or optical Ethernet. Its up to 16 processor cores
and built in Intel VT-d and VT-x support make the board ideally suited for virtualization
applications.
Serial interfaces at the rear I/O connectors are 2 USB 3.0, 6 SATA interfaces, four PCI
Express x1 links, two PCI Express x4 links and two PCI Express x8 links and four Gigabit
Ethernet interfaces.
The memory configuration of the G25A includes a state-of-the-art fast DDR4 DRAM with
ECC which is soldered to the board to guarantee optimum shock and vibration
resistance. A microSD card device which is connected via a USB interface offers space for
user applications or as a local boot medium.
For system security, a Trusted Platform Module is assembled on the board.
A board management controller provides thermal supervision of the processor and a
watchdog for the operating system.
The G25A operates in Windows and Linux environments as well as under real-time
operating systems that support Intel's multi-core architecture.
The AMI Aptio BIOS was specially designed for embedded system applications.
The G25A comes with a tailored heat sink within 4 HP height. All components are
soldered for protection against shock and vibration according to applicable DIN, EN or
IEC industry standards. The G25A is also ready for coating so that it can be used in humid
and dusty environments and has a guaranteed minimum standard availability of 7 years.
These features make the G25A perfectly suited for harsh environments.
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Diagram
Diagram
ECC DDR4 SDRAM
PCIe 2.0 x2
ECC DDR4 SDRAM
CPCI‐
S.0
P6
Ethernet Controller
R
Gb Ethernet
F
PHY
SATA (6 Gb)
SMLINK (PCIe x1)
USB 3.0
F
PHY
F
PHY
USB 2.0
F
10 Gb Ethernet
PCIe 3.0 x8
10 Gb Ethernet
UART‐to‐
USB
UART
Intel Xeon D SoC
CPCI‐
S.0
P1‐P5
PCIe 3.0 x4
PCIe 2.0 x1
SFF‐8485
FPGA
SGPIO
USB 3.0
F
BIOS Flash
microSD B
USB 2.0
R
SPI
TPM
F
Reset
F Front
SMB
BMC
R Rear
B Onboard
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Technical Data
Technical Data
CPU
 The following CPU types are available:
- Intel Xeon D-1539, 8 Cores
- Intel Xeon D-1577, 16 Cores
- Intel Pentium D-1519, Quad Core
 Intel Virtualization Technology (Intel VT)
- VT-d
- VT-x
 Intel Turbo Boost Technology
 Intel Hyper-Threading Technology
Security
 Trusted platform module (TPM 2.0)
Memory
 System Memory
- Soldered DDR4, ECC support
- 8 GB
- 16 GB
- 32 GB
 Boot Flash
- 16 MB
Mass Storage
 The following mass storage device can be assembled:
- microSD card
Front Interfaces
 USB




- One Series A connector, USB 3.0
- One configuration port implemented as a USB 2.0 device interface
Ethernet
- Two RJ45 connectors, 10GBASE-T, or
- Two 8-pin M12 connectors, X-coded, 10GBASE-T
- One RJ45 connector, 1000BASE-T, or
- One 8-pin M12 connector, X-coded, 1000BASE-T
- Two link and activity LEDs per Ethernet channel
Front-panel LED for board status
Hot-plug LED
Reset button
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Technical Data
Rear Interfaces
 SATA
- Six channels, SATA Revision 3.x, RAID level 0/1/5/10 support
 USB
- Two channels, USB 3.0
 Ethernet
- Four channels, 1000BASE-T
 PCI Express
- Four x1 links, PCIe 2.x
- Two x4 links, PCIe 3.x
- Two x8 links, PCIe 3.x
Supervision and Control




Board controller
Watchdog timer
Temperature measurement
Real-time clock with supercapacitor or battery backup
- Data retention of supercapacitor: 72 hours
Backplane Standard
 Compliance with CompactPCI Serial PICMG CPCI-S.0 Specification
 System or peripheral slot
Electrical Specifications
 Supply voltages
- +12V (9.5..15.5V), 7.5 A nominal, 9 A maximum (depending on CPU and board
configuration)
Mechanical Specifications
 Dimensions
- 3U, 4 HP, or
- 3U, 8 HP
 Weight: 230 g (model 02g025a00 without heat sink)
Environmental Specifications
 Temperature range (operation)





- EN 50155 class T1, T2, T3 or TX
- Airflow 1.5 m/s
- Depends on system configuration (CPU, hard disk, heat sink...)
Temperature range (storage): -40°C to +85°C
Cooling concept
- Air-cooled
- Conduction-cooled in MEN CCA frame
Humidity: EN 60068-2-30, EN 50155
Altitude: -300 m to +2000 m
Shock: EN 50155 cat 1 class b
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Technical Data
 Vibration: EN 50155 cat 1 class b
Reliability
 MTBF: tbd h @ 40°C according to IEC/TR 62380 (RDF2000) (model tbd)
Safety
 Flammability
- UL 94V-0
 Electrical Safety
- EN 62368-1 (former EN 60950-1)
EMC
 EN 55022 class B, EN 50121-3-2 (radiated and conducted emission)
 EN 55024, EN 50121-3-2 (immunity)
Software Support
 Windows
 Linux
See the MEN website for more information on supported operating
system versions and drivers.
BIOS
 AMI Aptio
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Product Safety
Product Safety
Electrostatic Discharge (ESD)
Computer boards and components contain electrostatic sensitive devices.
Electrostatic discharge (ESD) can damage components. To protect the PCB
and other components against damage from static electricity, you should
follow some precautions whenever you work on your computer.
 Power down and unplug your computer system when working on the
inside.
 Hold components by the edges and try not to touch the IC chips, leads,
or circuitry.
 Use a grounded wrist strap before handling computer components.
 Place components on a grounded antistatic pad or on the bag that came
with the component whenever the components are separated from the
system.
 Only store the product in its original ESD-protected packaging. Retain
the original packaging in case you need to return the product to MEN for
repair.
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About this Document
About this Document
This user manual is intended only for system developers and integrators, it is not
intended for end users.
It describes the design, functions and connection of the product. The manual does not
include detailed information on individual components (data sheets etc.).
G25A product page with up-to-date information and downloads:
www.men.de/products/g25a/
History
Issue
E1
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Comments
First issue
Date
2016-05-11
Page 8
About this Document
Conventions
Indicates important information or warnings concerning situations which
could result in personal injury, or damage or destruction of the
component.
Indicates important information concerning electrostatic discharge which
could result in damage or destruction of the component.
Indicates important information or warnings concerning proper
functionality of the product described in this document.
The globe icon indicates a hyperlink that links directly to the Internet.
When no globe icon is present, the hyperlink links to specific information
within this document.
Italics
Folder, file and function names are printed in italics.
Mono
A monospaced font type is used for hexadecimal numbers, listings, C
function descriptions or wherever appropriate. Hexadecimal numbers are
preceded by "0x".
Comment
Comments embedded into coding examples are shown in green text.
IRQ#
/IRQ
Signal names followed by a hashtag "#" or preceded by a forward slash "/"
indicate that this signal is either active low or that it becomes active at a
falling edge.
In/Out
Signal directions in signal mnemonics tables generally refer to the
corresponding board or component, "in" meaning "to the board or
component", "out" meaning "from the board or component".
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Legal Information
Legal Information
Changes
MEN Mikro Elektronik GmbH ("MEN") reserves the right to make changes without further
notice to any products herein.
Warranty, Guarantee, Liability
MEN makes no warranty, representation or guarantee of any kind regarding the
suitability of its products for any particular purpose, nor does MEN assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims
any and all liability, including, without limitation, consequential or incidental damages.
TO THE EXTENT APPLICABLE, SPECIFICALLY EXCLUDED ARE ANY IMPLIED WARRANTIES
ARISING BY OPERATION OF LAW, CUSTOM OR USAGE, INCLUDING WITHOUT LIMITATION,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE OR USE. In no event shall MEN be liable for more than the contract price for
the products in question. If buyer does not notify MEN in writing within the foregoing
warranty period, MEN shall have no liability or obligation to buyer hereunder.
The publication is provided on the terms and understanding that:
1. MEN is not responsible for the results of any actions taken on the basis of
information in the publication, nor for any error in or omission from the publication; and
2. MEN is not engaged in rendering technical or other advice or services.
MEN expressly disclaims all and any liability and responsibility to any person, whether a
reader of the publication or not, in respect of anything, and of the consequences of
anything, done or omitted to be done by any such person in reliance, whether wholly or
partially, on the whole or any part of the contents of the publication.
Conditions for Use, Field of Application
The correct function of MEN products in mission-critical and life-critical applications is
limited to the environmental specification given for each product in the technical user
manual. The correct function of MEN products under extended environmental
conditions is limited to the individual requirement specification and subsequent
validation documents for each product for the applicable use case and has to be agreed
upon in writing by MEN and the customer. Should the customer purchase or use MEN
products for any unintended or unauthorized application, the customer shall indemnify
and hold MEN and its officers, employees, subsidiaries, affiliates, and distributors
harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim or personal injury or death associated with
such unintended or unauthorized use, even if such claim alleges that MEN was negligent
regarding the design or manufacture of the part. In no case is MEN liable for the correct
function of the technical installation where MEN products are a part of.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified for the specific task in accordance with the relevant documentation,
in particular its warning notices and safety instructions. Qualified personnel are those
who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
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Legal Information
Conformity
MEN products are no ready-made products for end users. They are tested according to
the standards given in the Technical Data and thus enable you to achieve certification of
the product according to the standards applicable in your field of application.
RoHS
Since July 1, 2006 all MEN standard products comply with RoHS legislation.
Since January 2005 the SMD and manual soldering processes at MEN have already been
completely lead-free. Between June 2004 and June 30, 2006 MEN’s selected component
suppliers have changed delivery to RoHS-compliant parts. During this period any change
and status was traceable through the MEN ERP system and the boards gradually became
RoHS-compliant.
WEEE Application
The WEEE directive does not apply to fixed industrial plants and tools. The
compliance is the responsibility of the company which puts the product on
the market, as defined in the directive; components and sub-assemblies
are not subject to product compliance.
In other words: Since MEN does not deliver ready-made products to end
users, the WEEE directive is not applicable for MEN. Users are
nevertheless recommended to properly recycle all electronic boards which
have passed their life cycle.
Nevertheless, MEN is registered as a manufacturer in Germany. The registration number
can be provided on request.
Copyright © 2016 MEN Mikro Elektronik GmbH. All rights reserved.
Germany
France
USA
China
MEN Mikro Elektronik GmbH
Neuwieder Straße 3-7
90411 Nuremberg
Phone +49-911-99 33 5-0
MEN Mikro Elektronik SAS
18, rue René Cassin
ZA de la Châtelaine
74240 Gaillard
Phone +33-450-955-312
MEN Micro Inc.
860 Penllyn Blue Bell Pike
Blue Bell, PA 19422
Phone 215-542-9575
[email protected]
www.men.de
[email protected]
www.men-france.fr
[email protected]
www.menmicro.com
MEN Mikro Elektronik
(Shanghai) Co., Ltd.
Room 808-809, Jiaxing
Mansion, No. 877 Dongfang
Road
200122 Shanghai
Phone +86-21-5058-0961
[email protected]
www.men-china.cn
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Contents
Contents
1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.1
1.2
1.3
1.4
1.5
1.6
Map of the Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Configuring the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.2.1
microSD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connecting and Starting up the G25A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Troubleshooting at Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Installing Operating System Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.5.1
Installing Windows XP or Windows 7 on USB Devices . . . . . . . . . . 17
Installing Driver Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2 Functional Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
2.13
Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Processor Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.2.1
Thermal Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Supervision and Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3.1
Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Reset Events and Reset Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Real-Time Clock (RTC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Trusted Platform Module (TPM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.7.1
DRAM System Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.7.2
Boot Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Mass Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.8.1
microSD Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.8.2
Serial ATA (SATA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.9.1
10 Gigabit Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.9.2
Gigabit Ethernet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.9.3
Ethernet Signal Mnemonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2.9.4
Ethernet MAC Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.9.5
Ethernet Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.10.1
Front Panel Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.10.2
Connection of microSD card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.10.3
Rear I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.10.4
Peripheral Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
USB-to-UART Configuration Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
PCI Express. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
CompactPCI Serial. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.13.1
Backplane Filling Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.13.2
Implementation on the G25A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
2.13.3
Using the G25A as a Peripheral Board . . . . . . . . . . . . . . . . . . . . . . . 34
3 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.1
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Lithium Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Page 12
Contents
4 Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.1
4.2
4.3
PCI Express Root Port Interrupt Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
SMBus Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Product Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Map of the board – front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Map of the board – top view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
CompactPCI Serial backplane with filling order. . . . . . . . . . . . . . . . . . . . . . . . . 32
Position of lithium battery on G25A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Product labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
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Processor core options on G25A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
General status LEDs at front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Error codes signaled by board management controller via LED flashes . . . . 20
SATA ports speed and state in peripheral mode . . . . . . . . . . . . . . . . . . . . . . . . 23
Pin assignment of Ethernet front-panel connectors. . . . . . . . . . . . . . . . . . . . . 24
Pin assignment and status LEDs of Ethernet front-panel connectors . . . . . . 24
Pin assignment of Ethernet front-panel connectors. . . . . . . . . . . . . . . . . . . . . 25
Pin assignment and status LEDs of Ethernet front-panel connectors . . . . . . 25
Signal mnemonics of Ethernet front-panel connectors . . . . . . . . . . . . . . . . . . 26
Ethernet status LEDs at front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Pin assignment of USB 3.0 front-panel connector . . . . . . . . . . . . . . . . . . . . . . 29
Signal mnemonics of USB 3.0 front-panel connector . . . . . . . . . . . . . . . . . . . . 29
USB ports speed and state in peripheral mode . . . . . . . . . . . . . . . . . . . . . . . . 30
Pin assignment of USB front-panel connectors. . . . . . . . . . . . . . . . . . . . . . . . . 31
Signal mnemonics of USB front-panel connectors . . . . . . . . . . . . . . . . . . . . . . 31
PCI Express Root Port Interrupt Mapping for Downstream Devices . . . . . . . 36
SMBus devices on local SMBus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Page 13
Getting Started
1
Getting Started
This chapter gives an overview of the board and some hints for first operation.
1.1
Map of the Board
Figure 1. Map of the board – front panel
®
®
A
L
1
1
1
RST
RST
RST
X1
X1
X1
X2
X2
X2
X3
X3
X3
2
3
G25A
2
3
2
3
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H
S
A
L
H
S
A
L
H
S
G25A
®
G25A
Page 14
Getting Started
Figure 2. Map of the board – top view
Heat sink
USB connectors
Ethernet connectors
Optional Battery (below the heat sink)
1.2
Configuring the Hardware
You should check your hardware requirements before installing the board in a system,
since most modifications are difficult or even impossible to do when the board is
mounted in a rack.
The following chapters give an overview on what you might want to configure.
1.2.1
microSD Card
The board is shipped without a microSD card. You should check your needs and install a
suitable microSD card.
See the MEN website for ordering information.
See Chapter 2.8.1 microSD Card on page 22 for a detailed description.
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Getting Started
1.3
Connecting and Starting up the G25A
You can use the following check list when installing the board in a system for the first
time and with minimum configuration using a Windows host PC.
»
»
»
»
Power down the system.
Remove all boards from the CompactPCI system.
Insert the G25A into the system slot of your CompactPCI Serial system, making sure
that the CompactPCI Serial connectors are properly aligned.
Note: The system slot of every CompactPCI Serial system is marked by a triangle
with a plus sign behind it on the backplane and/or at the front panel. It also
has red guide rails.
Connect a terminal to the RS232 interface (USB connector).
See Chapter 2.11 USB-to-UART Configuration Interface on page 31.
Note: An FTDI driver must be installed on the PC your terminal is running on.
»
»
»
»
»
Set your terminal to the following protocol:
-
115 200 baud data transmission rate
8 data bits
1 stop bit
No parity
Power up the system.
You can access the UEFI firmware of the G25A via Console Redirection and start up
the setup menu by hitting the <F2> key.
Now you can make configurations in the UEFI firmware.
Observe the installation instructions for the respective software.
1.4
Troubleshooting at Start-up
If you have any problems at start-up of the G25A, you can check if the front-panel status
LED gives an error flash code.
See Chapter 2.3.1.1 Board Status LED on page 20.
You can also start the board with firmware default settings for troubleshooting.
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Page 16
Getting Started
1.5
Installing Operating System Software
The board supports Windows and Linux.
By default, no operating system is installed on the G25A. Please refer to
the respective manufacturer's documentation on how to implement the
operating system.
See the MEN website for all available software.
1.5.1
Installing Windows XP or Windows 7 on USB Devices
The microSD card of the G25A is connected via USB. A standard Windows operating
system (like Windows XP Professional or Windows 7 Ultimate) does not support direct
installation on USB memory devices.
There are three possible solutions:
 Add a hard drive (SATA, mSATA) on a peripheral board or side card
 Switch to an Embedded Windows (like Windows Embedded Standard or Windows
Embedded Standard 7). These Embedded Windows operating systems support
being installed on and booted from a USB device.
Linux supports booting from a USB device without problems.
1.6
Installing Driver Software
For a detailed description on how to install driver software please refer to the respective
documentation of the software package to be installed.
See the MEN website for all available software:
www.men.de/products/g25a/#downl
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Page 17
Functional Description
2
Functional Description
The following describes the individual functions of the G25A. Detailed information
regarding individual components can be obtained from the data sheets or data books of
the semiconductor manufacturer concerned.
2.1
Power Supply
The G25A board is supplied with +12V only. The voltage range is +9.5 V up to +15.5 V
(absolute maximum voltage). The voltage is monitored within these limits.
2.2
Processor Core
The following CPU types are available:
Table 1. Processor core options on G25A
Processor Type
Xeon D-1577
Core Frequency
Cores
Power
Consumption
tbd
16
Xeon D-1559
tbd
12
45 W
18 MB
Xeon D-1548
2 GHz
8
45 W
12 MB
Xeon D-1539
1.6 GHz
8
35 W
12 MB
Xeon D-1529
1.3 GHz
4
25 W
6 MB
Xeon D-1527
2.2 GHz
4
35 W
6 MB
Xeon D-1519
1.5 GHz
4
25 W
6 MB
Xeon D-1509
(on request)
1.5 GHz
2
19 W
3 MB
Xeon D-1508
2.2 GHz
2
25 W
3 MB
2.2.1
45 W
Cache
24 MB
Thermal Considerations
The power dissipation of G25A heavily depends on its processor and I/O configuration
and on the workload.
Power dissipation of a G25A equipped with a high-end 45 W processor is up to 72 W (45
W for the high-end processor and 27 W for the rest of the board).
The G25A provides a very high computing power on a small space. For this reason, it is
vital to provide sufficient airflow (1.5 m/s). A suitable heat sink is provided to meet
thermal requirements.
If you use any other heat sink than that supplied by MEN, or no heat sink
at all, warranty on functionality and reliability of the G25A may cease.
Please contact MEN if you have any questions or problems regarding
thermal behavior.
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Page 18
Functional Description
2.3
Supervision and Management
The G25A provides an intelligent board management controller (BMC) with the following
main features:
 System watchdog
 Operating hour counter
 Power cycle counter
 Temperature measurement
 Voltage supervision
 Error state logging
The watchdog device monitors the board on operating system level. If enabled, the
watchdog must be triggered by application software. If the trigger is overdue, the
watchdog initiates a board reset and in this way can put the system back into operation
when the software hangs.
The watchdog uses a configurable time interval or is disabled. Settings are made via a
MEN software driver.
The G25A uses a temperature device to measure the local board temperature. The
temperature device is connected to the BMC via I2C, and is supported by the firmware.
MEN provides the following dedicated software tools for the board controller and the
temperature device:
 Board Controller: xm01bc_ctrl
 Temperature measurement: smb2_eetemp
Both tools are included in the MDIS system package for Linux as well as in the 13y021-70
SMBus driver for Windows
See the MEN website for detailed information and documentation for the
MDIS5.
2.3.1
Status LEDs
The G25A has two general status LEDs at the front panel which are controlled by the
board controller using SMBus commands.
Table 2. General status LEDs at front panel
Appearance
Label
Color
Function
Yellow
Board status LED
H
Blue
Hot-Swap LED
A
L
H
S
S
1
RS
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Page 19
Functional Description
2.3.1.1
Board Status LED
The yellow status LED shows board status messages. The LED is controlled by a GPIO pin
of the board controller. It is switched on when the BIOS starts, switched off when the
board is switched off and flashing when the board is in stand-by (S3) status.
During normal operation the LED can be switched on and off using the
MEN driver for the board controller. See MEN’s website for further
information.
In case of a board failure, the LED displays the following error messages:
Table 3. Error codes signaled by board management controller via LED flashes
Number of Flashes
Error
1
+V3.3A failure
2
Input voltage failure
3
External power supply failure
4
CPU too hot
5
BIOS timeout
>5
Internal Board Error
2.3.1.2
Hot-Swap LED
After system shutdown or if the system is in S4 or in S5 state, the hot swap LED lights
continuously.
If the system is plugged into the system slot and in S0 state or in S3 state, the board
controller ignores the hot swap switch.
If the hot swap switch is closed while the hot swap sequence is in progress, the board
controller stops flashing the hot swap LED and no longer waits for system shutdown. If
the hot swap switch is closed after system shutdown, the board controller initiates
Power Resume.
If the hot swap switch is open during power-up, the board controller delays the powerup sequence and lights the hot swap LED until the hot swap switch is closed.
2.4
Reset Events and Reset Behavior
The G25A is equipped with a reset button which is recessed within the front panel and
requires a tool, e.g. paper clip to be pressed, preventing the button from being
inadvertently activated.
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Page 20
Functional Description
2.5
Real-Time Clock (RTC)
The G25A includes a real-time clock inside the processor.The G25A includes a real-time
clock connected to the processor as a system RTC. The RTC has an accuracy of
approximately 1.7 seconds/day (11 minutes/year) at 25°C. The real-time clock device is
connected to the CPU via SMBus.
For data retention during power off the RTC is backed up by a supercapacitor. The
supercapacitor gives an autonomy of approx. 72 hours (+/-20%) when fully charged.
Worst case derating is -30% after 1.67 years at +40°C board temperature.
For retention of time/date data after a power off of more than 8-10 hours the RTC can
optionally be backed by a battery.
See the MEN website for ordering information.
Due to the RTC’s reduced current consumption, the data retention time supported by the
supercapacitor or battery can be increased considerably compared to the RTC integrated
in the CPU.
Please note that the real-time clock integrated in the processor is not used. Configuring
the date and time through the means provided by the operating system does not set
the system RTC.
You can set the system date and time through the UEFI firmware.
If you use dedicated MEN driver software supporting the system RTC, you can use the
functions provided there to set the system date and time also via software.
See the MEN website for downloads and documentation.
2.6
Trusted Platform Module (TPM)
A trusted platform module for authenticating the hardware to ensure platform integrity
is available on the G25A. The TPM module is compliant to the TPM v2.0 specification.
2.7
Memory
2.7.1
DRAM System Memory
The G25A provides up to 32 GB onboard, soldered DDR4 (double data rate) SDRAM.
It supports a memory frequency of 2133 MHz and ECC.
2.7.2
Boot Flash
The G25A provides 16 MB boot Flash memory. It contains the UEFI firmware and the Intel
Management Engine firmware.
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Functional Description
2.8
Mass Storage
2.8.1
microSD Card
The G25A provides an onboard microSD card slot on the bottom side of the PCB.
The following standards are supported:
 Secure Digital 1.0 specification (microSD)
 Secure Digital 2.0 specification (microSDHC)
Supported speed classes:
 Class 2 / 4 / 6 / 8 / 10
 UHS-I / UHS-II
The slot is ready-to-use. The G25A is shipped without a microSD card installed.
See the MEN website for ordering information.
2.8.1.1
Inserting and Extracting a microSD Card on the G25A
To install a microSD card, please stick to the following procedure.
»
»
»
Power down your system and remove the G25A from the system.
Put the board on a flat surface.
Insert the microSD card into the slot with the contacts at the top.
PCB
Card slot
microSD card
»
»
Make sure that it clicks into place properly.
For extracting the card push it down and pull it out.
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Functional Description
2.8.2
Serial ATA (SATA)
The G25A provides six serial ATA channels controlled by the processor at the CPCI-S.0
rear I/O connectors.
The interfaces are compliant with SATA Revision 3.x and support transfer rates of 6.0
Gbit/s.
The interfaces can be run in AHCI and RAID mode. RAID 0, 1, 5 and 10 are supported.
Refer to the CompactPCI Serial standard PICMG CPCI-S.0 for the exact position of the
SATA ports on the rear I/O connectors. See Chapter 2.13 CompactPCI Serial on page
32.
Peripheral Use
If the G25A is used in a peripheral slot, the interfaces on the CompactPCI Serial
connectors are switched off. For a detailed listing of the SATA ports and their state in
peripheral mode see Table 4, SATA ports speed and state in peripheral mode.
Table 4. SATA ports speed and state in peripheral mode
SATA Port
State in Peripheral Mode
CPCI-S.0 8_SATA
Generation 3
OFF
CPCI-S.0 7_SATA
Generation 3
OFF
CPCI-S.0 6_SATA
Generation 3
OFF
CPCI-S.0 5_SATA
Generation 3
OFF
CPCI-S.0 4_SATA
Generation 3
OFF
CPCI-S.0 3_SATA
Generation 3
OFF
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Speed
Page 23
Functional Description
2.9
Ethernet
2.9.1
10 Gigabit Ethernet
The G25A provides two 10 GBase-T Ethernet interfaces at the front panel on the lower
two Ethernet connectors (X2 and X3).
The interfaces are implemented using the 10 Gigabit Ethernet MACs integrated in the
System-on-a-Chip combined with an Intel X557 Dual PHY.
The interfaces are available on X-coded M12 or RJ45 connectors.
2.9.1.1
Front Connection via M12 Connectors
Connector types:
 8-pin M12 receptacle X-coded, e,g. Phoenix Contact SACC-CI-M12FSX-8CON-L90
 Mating connector:
8-pin M12 plug X-coded
Table 5. Pin assignment of Ethernet front-panel connectors
4
5
3
6
2
7
1
8
2.9.1.2
10 GBase-T
1000Base-T
1
BI_DA+
BI_DA+
2
BI_DA-
BI_DA-
3
BI_DB+
BI_DB+
4
BI_DB-
BI_DB-
5
BI_DD+
BI_DD+
6
BI_DD-
BI_DD-
7
BI_DC-
BI_DC-
8
BI_DC+
BI_DC+
Front Connection via RJ45 Connectors
Connector types:
 Modular 8/8-pin receptacle according to FCC68
 Mating connector:
Modular 8/8-pin plug according to FCC68
Table 6. Pin assignment and status LEDs of Ethernet front-panel connectors
1
8
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10 GBase-T
1000Base-T
1
BI_DA+
BI_DA+
2
BI_DA-
BI_DA-
3
BI_DB+
BI_DB+
4
BI_DC+
BI_DC-
5
BI_DC-
BI_DC+
6
BI_DB-
BI_DB-
7
BI_DD+
BI_DD+
8
BI_DD-
BI_DD-
Page 24
Functional Description
2.9.2
Gigabit Ethernet
The G25A provides one GBase-T Ethernet interface at the front panel on Ethernet
connector X1. The interface is implemented using a Gigabit Ethernet MAC integrated in
the SOC combined with an Intel I218LM PHY.
The interface is available on an X-coded M12 or RJ45 connector.
2.9.2.1
Front Connection via M12 Connectors
Connector types:
 8-pin M12 receptacle X-coded 90°, e,g. Phoenix Contact SACC-CI-M12FSX-8CON-L90
 Mating connector:
8-pin M12 plug X-coded 90°
Table 7. Pin assignment of Ethernet front-panel connectors
4
5
3
6
2
7
1
8
2.9.2.2
1000Base-T
10/100Base-T
1
BI_DA+
TX+
2
BI_DA-
TX-
3
BI_DB+
RX+
4
BI_DB-
RX-
5
BI_DD+
6
BI_DD-
7
BI_DC-
8
BI_DC+
-
Front Connection via RJ45 Connectors
Connector types:
 Modular 8/8-pin mounting jack according to FCC68
 Mating connector:
Modular 8/8-pin plug according to FCC68
Table 8. Pin assignment and status LEDs of Ethernet front-panel connectors
1
8
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1000Base-T
10/100Base-T
1
BI_DA+
TX+
2
BI_DA-
TX-
3
BI_DB+
RX+
4
BI_DC+
-
5
BI_DC-
-
6
BI_DB-
RX-
7
BI_DD+
-
8
BI_DD-
-
Page 25
Functional Description
2.9.3
Ethernet Signal Mnemonics
Table 9. Signal mnemonics of Ethernet front-panel connectors
Signal
Direction
Function
BI_Dx+/-
in/out
Differential pairs of data lines for 1000Base-T or
10GBase-T
RX+/-
in
Differential pair of receive data lines for 10/100BaseT
TX+/-
out
Differential pair of transmit data lines for 10/
100Base-T
2.9.3.1
Rear Interfaces
The G25A provides four GBase-T Ethernet interfaces on the CompactPCI Serial rear I/O
connectors.
The interfaces are implemented using an Intel I350AM4 controller which is connected to
the System-on-a-Chip via a PCI Express 2.0 x2 link.
Refer to the CompactPCI Serial standard PICMG CPCI-S.0 for the exact position of the
Ethernet ports on the rear I/O connectors. See Chapter 2.13 CompactPCI Serial on
page 32.
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Functional Description
2.9.4
Ethernet MAC Addresses
The unique MAC address is set at the factory and should not be changed.
Any attempt to change this address may create node or bus contention
and thereby render the board inoperable.
The naming of the interfaces may differ depending on the operating system. The MAC
addresses on G25A are:
 X1 (front):
- 0x 00 C0 3A D0 80 00 – 0x 00 C0 3A D0 8F FF
 X2 (front):
- 0x 00 C0 3A D0 90 00 – 0x 00 C0 3A D0 9F FF
 X3 (front):
- 0x 00 C0 3A D0 A0 00 – 0x 00 C0 3A D0 AF FF
 Rear interface 1 (slot 2 on a standard CompactPCI Serial backplane):
- 0x 00 C0 3A D0 B0 00 – 0x 00 C0 3A D0 BF FF
 Rear interface 2 (slot 3 on a standard CompactPCI Serial backplane):
- 0x 00 C0 3A D0 C0 00 – 0x 00 C0 3A D0 CF FF
 Rear interface 3 (slot 4 on a standard CompactPCI Serial backplane):
- 0x 00 C0 3A D0 D0 00 – 0x 00 C0 3A D0 DF FF
 Rear interface 4 (slot 5 on a standard CompactPCI Serial backplane):
- 0x 00 C0 3A D0 E0 00 – 0x 00 C0 3A D0 EF FF
where "00 C0 3A" is the MEN vendor code. The last six digits form the unique MAC
address for each board. The serial number is added by the last three digits in the range:
Serial number 42 (X1): 0x8000 + 0x002A = 0x802A.
See Chapter 4.3 Product Identification on page 37.
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Page 27
Functional Description
2.9.5
Ethernet Status LEDs
The G25A provides a total of six Ethernet status LEDs at the front panel, two for each
Ethernet channel. They signal the link and activity status.
Table 10. Ethernet status LEDs at front panel
Appearance
Label
1/A
Color
Yellow
Function
Activity LED
 On: Tx/Rx activity
A
L
H
S
 Off: No activity
1
 Blinking: Tx/Rx activity
1/L
Green
Linkup LED
 On: Link up
 Off: No link
 Blinking: n/a
X1
2/A
Yellow
Activity LED
 On: Tx/Rx activity
 Off: No activity
 Blinking: Tx/Rx activity
X2
2/L
Green
Linkup LED
 On: Link up
 Off: No link
X3
 Blinking: n/a
3/A
Yellow
Activity LED
2
3
 On: Tx/Rx activity
 Off: No activity
 Blinking: Tx/Rx activity
3/L
Green
Linkup LED
 On: Link up
 Off: No link
 Blinking: n/a
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Functional Description
2.10
USB
The G25A provides three USB 3.0 ports and one USB 2.0 port controlled by the Systemon-a-Chip.
2.10.1
Front Panel Connection
One USB 3.0 interface is routed to a standard front-panel connector.
Connector type:
 9-pin USB 3.0 Standard-A receptacle according to Universal Serial Bus Specification
 Mating connector:
9-pin USB 3.0 Standard-A plug according to Universal Serial Bus Specification
Table 11. Pin assignment of USB 3.0 front-panel connector
1
1
2
3
4
9
8
7
6
5
+5V
9
StdA_SSTX+
2
D-
8
StdA_SSTX-
3
D+
7
GND
4
GND
6
StdA_SSRX+
5
StdA_SSRX-
Table 12. Signal mnemonics of USB 3.0 front-panel connector
Signal
Direction
Function
+5V
out
+5 V power supply
GND
-
Digital ground
D+, D-
in/out
USB 2.0 differential pair
StdA_SSTX+,
StdA_SSTX-
out
SuperSpeed transmitter
differential pair
StdA_SSRX+,
StdA_SSRX-
in
SuperSpeed receiver differential
pair
2.10.2
Connection of microSD card
One USB 2.0 interface is used for connection of the microSD card.
See Chapter 2.8.1 microSD Card on page 22.
2.10.3
Rear I/O
Two USB 3.0 interfaces can be accessed on the CompactPCI Serial rear I/O connectors.
Refer to the CompactPCI Serial standard PICMG CPCI-S.0 for the exact position of the
USB ports on the rear I/O connectors. See Chapter 2.13 CompactPCI Serial on page 32.
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Page 29
Functional Description
2.10.4
Peripheral Use
If the G25A is used in a peripheral slot, the USB interfaces on the CompactPCI Serial
connectors are switched off. For a detailed listing of the USB ports and their state in
peripheral mode see the following table.
Table 13. USB ports speed and state in peripheral mode
USB Port
State in peripheral mode
CPCI-S.0
1_USB3
USB 3.0
OFF
CPCI-S.0
2_USB3
USB 3.0
OFF
Front
USB 3.0
ON
microSD
USB 2.0
ON
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Speed
Page 30
Functional Description
2.11
USB-to-UART Configuration Interface
The G25A supports a USB 2.0 client port available on a USB 2.0 Series A connector at the
board front. The port is internally connected to a USB-to-UART bridge where system
UART is available.
This makes it possible to access the system UART via a remote station USB port. The
remote station does not need a UART port.
Connector types:
 4-pin USB Series A receptacle according to Universal Serial Bus Specification Revision 1.0
 Mating connector:
4-pin USB Series A plug according to Universal Serial Bus Specification Revision 1.0
Table 14. Pin assignment of USB front-panel connectors
1
2
3
4
1
+5V
2
USB_D-
3
USB_D+
4
GND
Table 15. Signal mnemonics of USB front-panel connectors
Signal
Direction
Function
+5V
in
+5 V power supply
GND
-
Digital ground
USB_D+, USB_D-
in/out
USB lines, differential pair
2.12
PCI Express
Rear I/O connection
The following PCI Express links are available at the G25A’s rear I/O connectors:
 Two PCI Express 3.0 x8 links
 Two PCI Express 3.0 x4 links
 Four PCIe 2.0 x1 links
Refer to the CompactPCI Serial standard PICMG CPCI-S.0 for the exact position of the
PCI Express ports on the rear I/O connectors. See Chapter 2.13 CompactPCI Serial on
page 32.
If the G25A is used in a peripheral slot, the interfaces on the CompactPCI Serial
connectors are switched off.
Connection of Gigabit Ethernet controller
The controller for the four Gigabit Ethernet channels at the rear is permanently
connected via one PCIe 2.0 x2 link.
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Functional Description
2.13
CompactPCI Serial
2.13.1
Backplane Filling Order
The CompactPCI Serial architecture, a simple star combined with a complete mesh for
Ethernet, functions without switches and bridges. There is a system slot and up to eight
peripheral slots with congruent pin assignments.
The CompactPCI Serial standard supports a maximum of 2 PCI Express x8 links (fat pipe),
6 PCI Express x4, 8 SATA, 8 USB and 8 Ethernet interfaces.
To guarantee maximum compatibility between different board manufacturers and to
optimize the usability in CompactPCI Serial systems the order to implement the
interfaces is defined. PCI Express, USB and Ethernet are ascending; SATA/SAS is
descending. This means that the first PCI Express link and the first USB and Ethernet
ports from the system slot are led to the first peripheral slot, the second to the second
etc. and the first SATA interface to the eighth peripheral slot, the second to the seventh
etc. See .Figure 3, CompactPCI Serial backplane with filling order on page 32
Figure 3. CompactPCI Serial backplane with filling order
System
Slot 1
Fat Pipe
Perip.
Slot 3
Perip.
Slot 4
Perip.
Slot 5
Perip.
Slot 6
Perip.
Slot 7
Perip.
Slot 8
Perip.
Slot 9
PCI Express
1
2
3
4
5
6
7
8
USB
1
2
3
4
5
6
7
8
Ethernet
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
SATA
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Fat Pipe
Perip.
Slot 2
Page 32
Functional Description
2.13.2
Implementation on the G25A
The G25A supports six SATA interfaces, two USB 3.0 ports, four PCI Express x1 links, two
PCI Express x4 links, two PCI Express x8 (PCI Express fat pipe) links and four Gigabit
Ethernet ports on the backplane.
Please read the following paragraph carefully to make sure which
interface is supported on which slot on the backplane.
The interfaces are accessible at the following slots (see Figure 3, CompactPCI Serial
backplane with filling order on page 32):
 Six SATA interfaces on slot 4, 5, 6, 7, 8 and 9
 Two USB 3.0 interfaces on slot 2 and 3
 Two PCI Express 3.0 x8 links on slot 2 and 3
 Two PCI Express 3.0 x4 links on slot 4 and 5
 Four PCI Express 2.0 x1 links on slot 6, 7, 8 and 9
 Four Gigabit Ethernet interfaces on slot 2, 3, 4 and 5
Refer to the CompactPCI Serial standard PICMG CPCI-S.0 for detailed
information regarding the rear I/O connectors.
 CompactPCI Serial Specification PICMG CPCI-S.0 Revision 2.0:
2015; PCI Industrial Computers Manufacturers Group (PICMG)
www.picmg.org
 Introduction to CompactPCI Serial on Wikipedia:
en.wikipedia.org/wiki/CompactPCI_Serial
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Functional Description
2.13.3
Using the G25A as a Peripheral Board
The G25A is designed to be a system or a peripheral slot CPU in a CompactPCI Serial
system. Due to that it is possible to use more than one G25A board within a CPCI-S.0
system to build a redundant system or a cluster with more processing power. The
communication between the boards is done via Ethernet in this case and the other highspeed interfaces cannot be used. The G25A cannot be booted via SATA in such a
configuration.
In peripheral mode the following interfaces available on the CPCI-S.0 connector are
disabled by the BIOS automatically:
 PCI Express
 USB
 SATA
 SMBus
 SGPIO
 All control signals which are only available for system boards
The BIOS detects if the board is inserted in a peripheral slot by monitoring the SYS_EN#
pin on CompactPCI Serial connector P1.
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Maintenance
3
Maintenance
3.1
Lithium Battery
This board might contain a lithium battery. There is a danger of explosion
if the battery is incorrectly replaced!
 Replace only with the same or equivalent type.
 Manufacturer: Renata
 Type: CR1025
 Capacity: 30 mAh
 The battery has to be UL listed.
Used batteries have to be disposed of according to the local regulations
concerning the disposal of hazardous waste.
Figure 4. Position of lithium battery on G25A
USB ctors
ernet ctors
Optional Battery (below the heat sink)
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Appendix
4
Appendix
4.1
PCI Express Root Port Interrupt Mapping
Table 16. PCI Express Root Port Interrupt Mapping for Downstream Devices
Port
INTA#
INTB#
INTC#
INTD#
1
INTA#
INTB#
INTC#
INTD#
2
INTB#
INTC#
INTD#
INTA#
3
INTC#
INTD#
INTA#
INTB#
4
INTD#
INTA#
INTB#
INTC#
5
INTA#
INTB#
INTC#
INTD#
6
INTB#
INTC#
INTD#
INTA#
7
INTC#
INTD#
INTA#
INTB#
8
INTD#
INTA#
INTB#
INTC#
4.2
SMBus Devices
Table 17. SMBus devices on local SMBus
Address
(8-bit notation)
0x57
0xAF/0xAE
EEPROM
0x37
0x6F/0x6E
EEPROM: protected register
0x1F
0x3F/0x3E
EEPROM: board temperature sensor
0x4D
0x9B/0x9A
Board Management Controller
0x32
0x65/0x64
System RTC RX-8571, see also Chapter 2.5 RealTime Clock (RTC) on page 21
0x70
0xE1/0xE0
SGPIO FPGA
0x44
0x89/0x88
Intel Management Engine (ME)
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Function
(7-bit notation)
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Appendix
4.3
Product Identification
MEN user documentation may describe several different models and/or design revisions
of the G25A. You can find information on the article number, the design revision and the
serial number on two labels affixed to the board.
 Article number: Indicates the product family and model. This is also MEN’s ordering number. To be complete it must have 9 characters.
 Revision number: Indicates the design revision of the product.
 Serial number: Unique identification assigned during production.
If you need support, you should communicate these numbers to MEN.
Figure 5. Product labels
Complete article number
02G02$
00.00.00
Revision number
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Serial number
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