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All rights are reserved in the event of the grant of a patent or the registration of a utility model
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Important Information
This documentation is intended for qualified audience only. The product described herein is
not an end user product. It was developed and manufactured for further processing by
trained personnel.
Disclaimer
Although this document has been generated with the utmost care no warranty or liability for
correctness or suitability for any particular purpose is implied. The information in this
document is provided “as is” and is subject to change without notice.
EMC Rules
This unit has to be installed in a shielded housing. If not installed in a properly shielded
enclosure, and used in accordance with the instruction manual, this product may cause radio
interference in which case the user may be required to take adequate measures at his or her
own expense.
Trademarks
All used product names, logos or trademarks are property of their respective owners.
Certification
MSC Vertriebs GmbH is certified according to DIN EN ISO 9001:2000 standards.
Life-Cycle-Management
MSC products are developed and manufactured according to high quality standards. Our lifecycle-management assures long term availability through permanent product maintenance.
Technically necessary changes and improvements are introduced if applicable. A productchange-notification and end-of-life management process assures early information of our
customers.
Product Support
MSC engineers and technicians are committed to provide support to our customers
whenever needed.
Before contacting Technical Support of MSC Vertriebs GmbH, please consult the respective
pages on our web site at www.msc-ge.com/support-boards for the latest documentation,
drivers and software downloads.
If the information provided there does not solve your problem, please contact our Technical
Support:
COM Express Revision 1.0
Last update: July 10th, 2005
[2] ATX Specification
atx2_21.pdf
Version 2.2
http://www.formfactors.org
[3] PCI Local Bus Specification Rev. 2.1
PCI21.PDF
Last update: June 1st, 1995
http://www.pcisig.com
[4] JILI Specification
Jilim120.pdf
Last update: April 7th, 2003
http://www.jumptec.de/product/data/jili/index.html
[5] Digital Video Interface DVI
dvi_10.pdf
Rev. 1.0 April 2nd, 1999
http://www.ddwg.org/
[6] ATA/ATAPI-6 Specification
d1410r3b.pdf
http://www.t13.org/
[7] CF+ & CF Specification Rev. 3.0
cfspc3_0.pdf
http://www.compactflash.org/
[8] Serial ATA Specification
Serial ATA 1.0 gold.pdf
Last update: August 29th, 2002 Rev.1.0
http://www.sata-io.org/
[9] IEEE Std. 802.3-2002
802.3-2002.pdf
http://www.ieee.org
[10] Universal Bus Specification
usb_20.pdf
Last update: April 27th, 2000
http://www.usb.org
7
CX-MB-EVA2 User's Manual General Information
1.3 Definitions and Abbreviations
COM Computer-On-Module
RTC Real Time Clock
ATX Advanced Technology Extended
PCI Peripheral Component Interconnect
IDE Integrated Drive Electronics
EIDE Enhanced Integrated Drive Electronics
CF Compact Flash
ATA Advanced Technology Attachment
ATAPI Advanced Technology Attachment with Packet Interface
SATA Serial Advanced Technology Attachment
USB Universal Serial Bus
PEG PCI express Graphics
GPIO General Purpose Input / Output
LVDS Low Voltage Differential Signaling
JILI JUMPtec Intelligent LVDS Interface
LAN Local Area Network
VGA Video Graphics Array
LPC Low Pin Count
POST Power on self test
SMBus System Management Bus
MDI Medium Dependent Interface
8
CX-MB-EVA2 User's Manual Introduction
2 Introduction
2.1 Product Description
COM Express modules are compact, highly integrated Single Board Computers.
Typically a COM Express module consists of CPU, chipset, memory, video controller,
Ethernet controller, BIOS flash and EIDE-, SATA- and USB controller. Interface
controllers (e.g. for PCMCIA) or connectors (e.g. RJ45) are implemented on the base
board on to which the COM Express module can be mounted via one or two 220-pin
SMD-connectors. Beside the power supply also signals for PCIe- and PCI-bus, EIDE,
SATA, USB, LPC etc. are present on these connectors.
The type of interfaces that is led from the COM Express module to the base board
depends on the type of module that is used. The COM Express specification defines five
different types which differ in number and pin assignment of the module connectors.
Thanks to the standardized mechanics and interfaces the system can be scaled
arbitrarily. In spite of a modular concept the systems design is very flat and compact.
COM Express modules require a base-board for successful operation.
The base board described below acts as an evaluation board for the COM Express
modules.
2.2 Features
Interface for COM Express module type 2 up to extended form factor
PCI slots 32Bit v2.1
6 PCIe slots
PCIe x16 graphics / SDVO
VGA interface
LVDS interface
Standard JILI / JILI40
TV-Out
AC'97-Link
o LineIn
o LineOut
o Headphone
o Microphone
High Definition Audio
o LineIn
o LineOut
o Microphone
o Center / LFE
o Surround
o Side
9
CX-MB-EVA2 User's Manual Introduction
40 pin IDE interface Ultra ATA-100/66/33
44 pin IDE interface Ultra ATA-100/66/33
Compact flash interface Spec. v3.0
SATA channels up to 150MB/s
8 USB2.0 root hub interfaces
LAN interface max. 1GBit
LPC slot
Pin header for GPIOs
SuperIO W83627THF
o 2x PS/2
o 2x COM
o 1x IrDA
o fan interfaces
Hardware monitoring
Power supply via ATX connector
POST display on LPC
Serial EEPROM on I²C-Bus
Serial EEPROM on SMBus
On-board BIOS Flash
Beeper
Note : Support for all above features will also depend on the COM Express module being
used. Not all modules support the maximum number of interfaces.
10
CX-MB-EVA2 User's Manual Introduction
BACK
PCI
e
Line
Line
Head
Trans
-
IO
40 pin
84
Line
Center
44 pin
2.3 Block Diagram
VGA TVout
HP
Front
Side
MIC
IN
MIC
OUT
AC97 - CODEC
Phone
LAN
LFE
former
IN
GPIO EEPROM
HDA - CODEC
GPIO I²C MDI AC-Link TV-out VGA PCIe-G A B
COM Express Modul
LPC
SMBus
PCI
PCIe USB SATA IDE
PORT80
EEPROM
Connector
Extension Card
LPC Slot
HW
Monitor
6
PS/2
COM1
COM2
SMB
Super IO
PS/2 COM1 COM2 IrDa HW
Monitor
Fan
4x
PCI Slot
6x
PCIe Slot
COM Express Base Board
Illustration 1 Block Diagram Base Board
Graphics
8x
USB
4x
SATA
LVDS
LCD
JILI40
JILI
JILI
EEPROM
I²C
LIGHT
Connector
Connector
CF
Slot
11
CX-MB-EVA2 User's Manual Introduction
X2
X13
X14
X15
X16
X21
X20
X19
X34
X36
X37
X38
X42
X43
X47
X52
X53
X39
X1
Reset
S3 S4 S5
Lane RV
2.4 Positioning of the Connectors
1 3
10 12
JP1101
X40
1
IRDA
X35
1
GPIO
Beeper
Fan
1
SW1103
3
2
J6
1
1
X48
LPC
POST Code
1
Power
1
Lattice
Programming
Interface
POST
Code
Display
X27
1
X51
SATA CH2/CH0
COM1/
COM2
OnBoard
BIOS-Flash
Socket
Audio
HDA
CF
Socket
1
J0802
X24
X23
1
I/O
1
X22
IDE
X45
1
J1301
2 3 4 5 6
J1302
J0701
COM Express
Module
Connector
Audio AC97
IDC
X18
X41
Keyb./
Mouse
TV out
1
1
Fan
X17
1
VGA
X29
J0504
X30
USB
X31 X32
Illustration 2 Positioning of the Connectors
X25
1
X49
SW0611
X12
SATA CH3/CH1
X28
Battery
X26
J1101
J0203
1
4 2 3
J1003
X33
LAN
X50
X6
PCI - Express
X11
X7
X8
J1303
1
X3
1
PCI
X9
J0306
2
1
3
X10
1
JP0601
X5
X46
1
2
1
J5
2
4
3 5
JILI40
1
3
6
Power
JILI
LVDS
1
Back-
light
ATX
1
12
CX-MB-EVA2 User's Manual Mechanics
3 Mechanics
3.1 Dimensions
Dimension: 254.5 mm x 36.8 mm
Width: 1.6 mm + /-10%
Tolerances of the drill holes: +/- 0.1mm in X and Y
Tolerances of the diameter: + 0.1 mm
3.2 Assembly notes
CXC: 4x M2.5 x 5mm bolt
CXB: 5x M2.5 x 5mm bolt
CXE: 7x M2.5 x 5mm bolt
13
CX-MB-EVA2 User's Manual Hardware
4 Hardware
4.1 Plug-in Position of the COM Express module
Sockets for a COM Express type 2 module is available on the base board.