E8870IO 반도체 회로 부품 판매점
Intel E8870IO Server I/o Hub
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 Intel Corporation |
www.DataSheet4U.com
Intel® E8870IO Server I/O Hub (SIOH)
Datasheet
Product Features
s Scalability Port (SP):
— Two SPs with 3.2 GB/s peak bandwidth
per direction per SP.
— Bi-directional SPs for a total bandwidth
of 12.8 GB/s.
s Four Hub Interface 2.0 Ports:
— For connecting to Intel® 82870P2 PCI/
PCI-X 64-bit Hub 2 (P64H2).
— 16-bit, 533 MHz interface.
— 1 GB/s peak data rate.
s One Hub Interface 1.5 Port:
— For connecting to Intel® 82801DB.
Legacy I/O Controller Hub 4 (ICH4).
— 8-bit, 266 MHz interface.
— 266 MB/s peak data rate.
s Supports peer-to-peer write traffic between
Hub Interface Ports.
s Dedicated read cache for each Hub
Interface Port:
— 32 128-byte cache lines.
— Dedicated prefetch engines for Hub
Interface 2.0 ports.
s Supports caching of frequently used and
prefetched data residing in main memory.
s 64-line write cache.
s Aggressive prefetching algorithm
optimized for PCI-X functionality
supported by the 82870P2 component:
— Utilizing enhanced features such as
read-streaming, and prefetch horizon.
s Supports multiple unordered inbound
traffic streams:
— Two unordered streams per Hub
Interface 2.0 port.
— One stream for the Hub Interface 1.5
port.
s System Management Bus (SMBus) 2.0
slave interface for server management with
Packet Error Checking.
s Reliability, Availability, and Serviceability
(RAS):
— Sideband access to configuration
registers via SMBus SMBus or JTAG.
— End-to-end ECC for all interfaces.
— Fault detection and logging.
— Signal connectivity testing via.
boundary scan.
s Packaging:
— 42.5 mm x 42.5 mm
— 1012-pin organic LAN grid array
(OLGA) package-2B.
Document Number: 251111-001
August 2002
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ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN
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RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER
INTELLECTUAL PROPERTY RIGHT. Intel products are not intended for use in medical, life saving, or life sustaining applications.
Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked “reserved” or “undefined.” Intel reserves these for
future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.
The Itanium 2 processor, E8870 chipset and E8870IO (SIOH) component may contain design defects or errors known as errata which may cause the
product to deviate from published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
Copies of documents which have an order number and are referenced in this document, or other Intel literature, may be obtained by calling1-800-548-
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Intel, Itanium 2, E8870 and E8870IO are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other
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Copyright © 2002, Intel Corporation. All rights reserved.
*Other names and brands may be claimed as the property of others.
ii Intel® E8870IO Server I/O Hub (SIOH) Datasheet
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