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82547EI Datasheet(PDF) 9 Page - Intel Corporation |
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82547EI Datasheet(HTML) 9 Page - Intel Corporation |
9 / 66 page 82562EZ(EX)/82547GI(EI) Dual Footprint Design Guide 1 1.0 Introduction Intel currently supports several footprint compatible Ethernet options depending upon the target application. The term “footprint compatible” means that the silicon devices are all manufactured in a 15 mm x 15 mm, 196-ball grid array package with the same ball pattern. Many of the critical signal pin locations are identical, allowing designers to create a single LAN on Motherboard (LOM) design that accommodates all devices. This is a flexible, cost-effective, multipurpose design technique that allowing maximized value while matching performance needs. Note: Since some of the signal pins have different usages, the term “pin-compatible” is not applicable. Available LAN components with the same footprint include the 82547GI(EI) Gigabit Ethernet Controller and the 82562EZ(EX) Platform LAN Connect components. The LAN component used on a specific platform depends on the end user’s need for connection speed and manageability. As the requirements change, footprint compatibility makes it possible to re-focus the platform without the need to redesign a new a motherboard. 1.1 Scope This application note contains Ethernet design guidelines applicable to LOM designs based on the Intel ® 865 Chipset and Intel® 875 Chipset. The document identifies similarities and differences between the 82562EZ(EX) Platform LAN Connect device and the 82547GI(EI) Gigabit Ethernet Controller. Section 2 describes the port interfaces specific to each device. Section 3 explains what you need to know to hook up an Ethernet device to the system. Section 4 describes board layout techniques applicable to these devices. Section 5 provides a reference to the design and layout checklists. Table 1. LAN Component Connections/Features LAN Component Interface Connection Features Intel® 82547GI(EI) CSA Gigabit Ethernet (1000BASE-T) with Alert Standard Format (ASF) alerting Gigabit Ethernet, ASF 2.0 alerting Intel® 82562EX (196 BGA) LCI 10/100 Ethernet with ASF alerting Ethernet 10/100 connection, ASF 1.0 alerting Intel® 82562EZ (196 BGA) LCI Basic 10/100 Ethernet Ethernet 10/100 connection |
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