ADLINK Express-CBR - Manual (Page 28)

Chapter 3 Hardware
24 Reference Manual Express-CBR
USB Interface
The PCH offers four UHCI USB host controllers and two EHCI USB host controllers. These controllers
comply with USB standard 1.1 and 2.0 and offer a total of eight USB ports through connector A-B. All ports
are high-speed and full-speed, and low-speed capable. The port routing logic determines whether a USB port
is controlled by one of the UHCI controllers or by one of the EHCI controllers.
Power Interface
A 12V voltage rail on both A-B and C-D COM Express connectors accepts the voltages required for the
board. The RTC 3.3V battery feed and 5V standby functions draw power through the A-B connector.
Power Management
The Express-CBR is ACPI 3.0b compliant. The board supports S0, S1, S3, S4, and S5 sleep states.
Video Interfaces
VGA
The Express-CBR graphics are driven by an Intel internal graphics interface which provides the interface for
an analog display. A 300-MHz integrated, 24-bit RAM-based, Digital-to-Analog Converter (RAMDAC)
converts up to 2048x1536 digital pixels at a maximum refresh rate of 60-Hz. Three 8-bit DACs provide R,
G, B signals to the monitor.
LVDS
The Intel BD82QM57 PCH provides direct LVDS outputs. The outputs are independent of other panel
interfaces. The LVDS interface will support 1 or 2 channels and can support four data pairs and one clock
pair of LVDS (24-bit) in each channel.
Audio Interface
The A-B connector provides an interface that supports HD Audio codecs.
Ethernet Interface
The Express-CBR supports one Gigabit Ethernet interface, which can be enabled in BIOS Setup. The
Ethernet interface is implemented from the 82574IT Ethernet controller and provides one GLAN interface
which occupies PCI Express port 7. The Ethernet function supports multi-speed operation 10/100/1000
Mbps and operates in full-duplex at all supported speeds or half duplex at 10/100 Mbps while adhering to
the IEEE 802.3x flow control specification.
I ² C
™
Bus
The I²C bus is implemented through the use of the Atmel ATmega168 board controller. The board controller
provides a Fast Mode (400kHz max.) multi-master I²C bus that has maximum I²C bandwidth. Use the
ADLINK Intelligent Device Interface (AIDI) Library for access to the I²C bus. AIDI driver information is
available on the Express-CBR Product page at: http://www.adlinktech.com . An AIDI demo program and the
AIDI User’s Manual describing how to use the I²C bus also reside in the Utilities area of the Express-CBR
Product page.
NOTE Winbond-based baseboards do not support the S3 sleep state on the
Express-CBR.