Specifications

Introduction 1
cPCI-6840
1 Introduction
The cPCI-6840 is a 6U CompactPCI single board computer based
on Intel® Pentium® M processor, 855GME and 6300ESB chipset.
The Pentium® M processor comes with 1MB L2 cache in FC-
mPGA package. The operating frequency ranges from 1.3GHz up
to 1.6GHz. The cPCI-6840 is designed to be forward compatible
with future 1.7GHz or higher speed Pentium® M compatible pro-
cessor. The combination of the longevity of the Intel® 855GME
and 6300ESB chipset and low power consumption of the Pen-
tium® M CPU make the cPCI-6840 the best solution for embed-
ded applications.
The 855GME supports 400MHz FSB and DDR333 memory up to
2GB. Two 200 pins SO-DIMM sockets support up to a maximum
2GB DIMM with 144-bit wide PC2700 registered DDR memory. A
32-bit 3D graphic controller is integrated to provide analog VGA or
LVDS output.
The low power consumption 6300ESB south bridge provides dual
PCI buses (PCI 64 bit/66-MHz and 32-bit/33MHz) to maximize I/O
bandwidth. The I/O features are highly integrated, including four
USB 2.0 port, two UART, two E-IDE channels, two Serial ATA
ports, and a watchdog timer.
The 6300ESB’s PCI 64 bit/66 MHz bus connects to two PMC
sites, a dual port GbE controller 82546GB, and the universal PCI-
to-PCI bridge PLX PCI-6540. The two 64-bit/66MHz PMC sites
provide extreme expansion capability and flexibility for varieties of
applications. The upper PMC site provides the rear I/O (Jn4 of
PMC) capability for either SCSI PMC or telecom PMC modules.
The CompactPCI bus is based on the universal PCI-to-PCI bridge
chip PCI-6540 (made by PLX Technology), providing either a
transparent or non-transparent PCI interface. cPCI-6840 can be
used as either a system slot or peripheral slot. cPCI-6840 can also
be a server blade for stand alone operation on any non-system
slot (without PCI bus). The cPCI-6840 is hot-swappable on periph-
eral slot or non-PCI bus slot which provide the best MTTR perfor-
mance for telecom applications.
The cPCI-6840 is equipped with three Gigabit Ethernet (GbE)
ports. Two GbE ports use the 82546GB dual ports GbE controllers
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