User`s manual

Introduction 1
1 Introduction
The cPCI-6841 is a 6U CompactPCI single board computer based
on the Intel® Pentium® M processor and 855GME/ICH4 chipset.
The Pentium® M processor’s operating frequency ranges from
1.3GHz up to 2.0GHz and it comes with 1MB/2MB L2 cache in an
FC-mPGA package. The combination of the longevity of the Intel®
855GME/ICH4 chipset and low power consumption of the Pen-
tium® M CPU make the cPCI-6841 the ideal solution for embed-
ded applications.
The 855GME supports a 400MHz FSB and DDR333 memory up
to 2GB via two SODIMM sockets. An integrated 32-bit 3D graphic
controller provides analog VGA or DVI output.
The low power consumption ICH4 southbridge provides a 33MHz
PCI bus with highly integrated I/O features, including one USB 2.0
port and two E-IDE channels. The ICH4’s PCI bus is connected to
one PMC site, two 82541GI Gigabit Ethernet (GbE) controllers,
and a TI PCI-2050 PCI to PCI bridge. The 32-bit/33 MHz PMC site
provides high expansion capability and flexibility for various appli-
cations.
The cPCI-6841 is equipped with two Gigabit Ethernet (GbE) ports.
Two GbE ports use the 82541GI GbE controllers on the 33MHz
PCI bus to achieve the full communication bandwidth between the
LAN and CPU. These two ports are connected to the front panel.
Please refer to the following block diagram for the cPCI-6841
architecture.