ADLINK Express-HRR - Manual (Page 27)

Chapter 3 Hardware
Express-HRR Reference Manual 23
Power Management
The Express-HRR is ACPI 4.0a compliant. The board supports S0, S1, S3, S4, and S5 sleep states.
Video Interfaces
VGA
The Express-HRR graphics are driven by an Intel internal graphics interface which provides the interface for
an analog display. A 340-MHz integrated, 32-bit RAM-based, Digital-to-Analog Converter (RAMDAC)
converts up to 2048x1536 digital pixels at a maximum refresh rate of 75-Hz. Three 8-bit DACs provide R,
G, B signals to the monitor.
LVDS
The Intel BD82QM67 PCH provides direct LVDS output. The output is 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 (18 or 24-bit) in each channel.
Audio Interface
The High Definition (HD) Audio controller resides in the PCH and communicates with external codec(s)
(such as audio and modem codecs) over the Intel HD Audio serial link. The PCH implements a single Serial
Data Output signal (AC/HDA_SDOUT) that is connected to all external codecs. Four Serial Digital Input
signals (AC/HDA_SDIN) support up to four codecs.
Ethernet Interface
The Express-HRR supports one Gigabit Ethernet interface, which can be enabled in BIOS Setup. The
Ethernet interface is implemented from the 82579LM Ethernet transceiver and occupies PCI Express port 8.
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 COM Express 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 areas of the COM
Express Product page.
NOTE Winbond-based baseboards do not support the S3 sleep state on the
Express-HRR.