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Intel - Chipset

Numéro de référence NQE7520MC
Description Chipset
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Product Brief
Intel® E7520 Chipset
Embedded Computing
Intel® E7520 Chipset
for Intel® Core™2 Duo Processors and Intel® Core™ Duo Processors
Product Overview
The Intel® E7520 chipset for embedded computing – utilizing dual-
processor, high-bandwidth chipset technology – enables reduced
power consumption with improved platform reliability and system
manageability compared to previous-generation Intel® chipsets.
The 667 MHz front-side bus supports Intel® Core™2 Duo proces-
sors (T7400Δ, L7400Δ) and Intel® Core™ Duo processors (T2500Δ,
L2400Δ), providing high bandwidth for increased memory and
I/O throughput, specifically optimized to offer a value-sensitive
solution for embedded and communications applications.
Intel Core 2 Duo processors are based on Intel® Core™ microarchi-
tecture with support for Intel® 64 architecture§ (Intel® 64) and
36 bits of physical addressing, delivering breakthrough, energy-
efficient performance to help equipment manufacturers optimally
balance processing capabilities within power and space constraints.
Intel Core Duo processors are derived from the Intel® Pentium® M
processor with significant hardware architecture enhancements
in stack management, instruction execution, and branch prediction.
These processors, when paired with the Intel E7520 chipset, pro-
vide an ideal solution for a wide range of performance-intensive,
low-power communication and embedded applications in smaller
form factor designs. While incorporating advanced processor
technology, these processors remain software-compatible
with previous IA-32 processors.
The Intel® E7520 Memory Controller Hub (MCH) includes PCI
Express*1 serial I/O technology and DDR2 memory technology
to help increase I/O bandwidth and reduce system latency for
data-intensive applications. It is the central hub for all data
passing among the core system elements, including processors,
memory, PCI Express I/O, and legacy I/O subsystems.
Memory
This platform can be designed to support single- or dual-channel
DDR2-400 memory (up to 4 GB). DDR2-400 memory technology
is ideal for storage and memory-intensive applications, providing
up to 20% increase in memory bandwidth and up to 40% decrease in
power consumption over DDR 333. The memory subsystem interface
to the MCH is dual channel, supporting up to four registered DIMMs
per channel – depending on memory technology – for a total system
bandwidth of up to 6.4 GB/s.
PCI Express
For demanding I/O and networking applications, PCI Express
interfaces attach a variety of Intel and third-party I/O solution
components and adapters directly to the Intel E7520 MCH at
throughput speeds of up to 4 GB/s on each x8 interface, allowing
I/O to keep pace with the rest of the platform. The MCH has three
x8 PCI Express interfaces which can each be bifurcated into two
x4 interfaces for additional configuration flexibility.
Intel®
6300ESB I/O
Controller
Hub2
Intel® Core™2 Duo Processor,
Intel® Core™ Duo Processor
667 MHz Front-Side Bus
Intel® E7520
Memory
Controller
Hub
DDR2-400
DDR2-400
PCI-X 66 PCI-X 66 PCI-X 66 PCI-X 66
Optional
x4 or x8 PCI Express Slot
x4 or x8 PCI Express Slot
Three configurable x8 PCI Express*1 Interfaces
(each x8 can be configured as two x4s)
x4 or x8 PCI Express Slot
Intel® IOP332 I/O Processor
Intel® 6700PXH 64-bit PCI Hub
Third-Party Component
Figure 1: Intel® E7520 Chipset with Intel® Core™2 Duo and Intel® Core™ Duo Processors
1PCI Express reduced-power state L0s not supported.
2Intel® 6300ESB ICH supports up to 4 PCI-X down devices.

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