Table of Contents
Advertisement
2.3.1
855GME and 82801DB
The Intel 855GM/855GME GMCH components provide the processor interface, DDR
SDRAM interface, display interface, and Hub interface. The Intel 855GME also has an
option for AGP external graphics port, in addition to integrated graphics support for added
board flexibility options.
The Intel 855GM GMCH is in a 732-pin Micro-FCBGA package and contains the following
functionality listed below:
¡E
AGTL+ host bus supporting 32
technology support
¡E
Supports a single channel of DDR SDRAM memory
¡E
System memory supports DDR200/266 MHz (SSTL_2) DDR SDRAM
¡E
Integrated graphics capabilities: Display Core
¡E
Render Core frequency at 100 MHz ,133 MHz, and 200 MHz
¡E Provides supports four display ports: one progressive scan analog monitor, dual
channel LVDS interface and two DVO port.
The Intel 855GME GMCH is in a 732-pin Micro-FCBGA package and contains all features
listed above and the additional functionality list below:
¡E
Display Core frequency at 133 MHz, 200 MHz, or 250 MHz
¡E
Render Core frequency at 100 MHz ,133 MHz, 166 MHz, 200 MHz, or 250 MHz
¡E
System memory supports 2
¡E
Enhanced Power Management Graphics features
The GMCH IGD provides a highly integrated graphics accelerator delivering high
performance 2D, 3D, and video capabilities. With its interfaces to UMA using a DVMT
configuration, an analog display, a LVDS port, and two digital display ports (e.g. flat
panel), the GMCH can provide a complete graphics solution.
The GMCH also provides 2D hardware acceleration for block transfers of data (BLTs).
The BLT engine provides the ability to copy a source block of data to a destination and
perform raster operations (e.g., ROP1, ROP2, and ROP3) on the data using a pattern,
and/or another destination. Performing these common tasks in hardware reduces CPU
load, and thus improves performance. High bandwidth access to data is provided through
the system memory interface. The GMCH uses Tiling architecture to increase system
memory efficiency and thus maximize effective rendering bandwidth. The Intel
855GM/855GME GMCH improves 3D performance and quality with 3D Zone rendering
technology. The Intel 855GME GMCH also supports Video Mixer rendering, and Bi-Cubic
filtering.
The Intel 855GM/855GME GMCH has four display ports, one analog and three digital.
With these interfaces, the GMCH can provide support for a progressive scan analog
monitor, a dedicated dual channel LVDS LCD panel, and two DVO devices. Each port can
transmit data according to one or more protocols. The data that is sent out the display port
is selected from one of the two possible sources, Pipe A or Pipe B.
-bit host addressing with Enhanced Intel SpeedStep
00/266/333- MHz (SSTL_2) DDR SDRAM.
frequency at 133 MHz or 200 MHz
ECM-5716 Series User' s Manual 7
ECM-5716 Series
Advertisement
Table of Contents
