Introduction
3
cPCI-6840
1.1
Main Functions
The following sections explain the main functions on cPCI-6840
CPU Support
The cPCI-6840 SBC is designed for the Intel® Pentium® M and
Celeron® M Processors. The standard cPCI-6840 SBC comes
with CPU socket which can be installed with
μ
FC-PGA2 package
CPU, with the following options:
X
Pentium® M 1.3GHz, 1.4GHz, 1.5GHz, 1.6GHz, 1.7GHz,
1.8GHz, and 2.0GHz
X
Celeron® M 1.3GHz
The Low Voltage (LV) or Ultra Low Voltage (ULV) version of the
Pentium® M or Celeron® M Processors, which are in
μ
FCBGA2
packages, can also be mounted on the cPCI-6840 SBC. However,
μ
FCBGA2 CPU support is reserved for OEM programs only. The
possible CPU options include:
X
LV Pentium® M 1.1, 1.2, 1.3GHz
X
ULV Celeron® M 600MHz
CompactPCI Bus Interface
The PLX Technology PCI-6540 is a tri-mode universal PCI-to-PCI
Bridge and is used to implement the system/peripheral slot on the
cPCI-6840. The tri-mode bridge is capable of operating in Trans-
parent, Non-Transparent or Universal mode. The PCI-6540 Non-
Transparent mode permits independent memory mapping of both
primary and secondary buses with powerful configuration options
to support intelligent subsystems. The Universal mode permits
jumper-less configuration between application to CompactPCI
interface at Peripheral Slot and System Slot. With the Universal
option, the PCI-6540 Bridge can be configured as a transparent
bridge in a System Slot supporting a host, or as a Non-Transpar-
ent bridge in a Peripheral Slot as an intelligent subsystem. These
options allow the cPCI-6840 board to be inserted into both the
Peripheral Slot and the System Slot.
The cPCI-6840 CompactPCI bus supports up to 64 bit/66 MHz
PCI, as well as allowing the host bus and subsystem bus to
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