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Reviews the importance of high-speed serial interfaces to the next generation of system interconnect design. Provides the groundwork for successful PCI Express®and Serial Gigabit Media Independent Interface (SGMII) system design, including a focus on the careful attention to PCB design and interconnect that these systems demand.
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™
Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are
the property of their respective owners. © Freescale Semiconductor, Inc. 2007-2008.
Hardware Design Considerations for PCI
Express
®
and SGMII
AN307
June 26, 2007
Tiffany Tran-Chandler
Senior Hardware Design Engineer
™
Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are
the property of their respective owners. © Freescale Semiconductor, Inc. 2007-2008.
2
PCI Express
®
– Hardware Interconnect Design
• Abstract
Reviews the importance of high-speed serial interfaces to the next
generation of system interconnect design. Provides the groundwork for
successful PCI Express
®
and Serial Gigabit Media Independent Interface
(SGMII) system design, including a focus on the careful attention to PCB
design and interconnect that these systems demand.
™
Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are
the property of their respective owners. © Freescale Semiconductor, Inc. 2007-2008.
3
PCI Express
®
– Hardware Interconnect Design
►Agenda
• PCI Express
®
Electrical Architecture Overview
• PCI Express Electrical Fundamentals
Loss
Jitter
• Interconnect Design
Practical PCB Design Recommendations
Loss and Jitter Mitigation
Simulation
• System Interconnect Example
• Brief introduction to PCI Express 2.0
• SGMII fundamentals and comparison
™
Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are
the property of their respective owners. © Freescale Semiconductor, Inc. 2007-2008.
4
►PCI SIG - Several Specs define requirements
• PCI Express
®
Base Specification 1.1 and 2.0
• Companion Specifications
PCI Express Card Electromechanical Specification 1.1 and 2.0
(still unreleased)
– Addresses Add-in cards for ATX-based desktop applications
PCI Express Mini Card Electromechanical Specification Revision 1.1
– Addresses small card form factor for mobile and communications systems
PCI Express ExpressModule™ Electromechanical Specification Revision 1.0
– Latest addition defines removable modular I/O adapters for closed chassis
servers and workstations
PCI Express External Cabling Specification 1.0 (Feb 07)
www.pcisig.com/specifications/pciexpress
PCI Express
®
– Electrical Architecture Overview
™
Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are
the property of their respective owners. © Freescale Semiconductor, Inc. 2007-2008.
5
PCI Express
®
– Electrical Architecture Overview
►PCI SIG – Several Specs define requirements
• PCI Express
®
Base Specification Revision 1.1
• Companion Specifications
PCI Express
®
Card Electromechanical Specification Revision 1.1
– Addresses Add-in cards for ATX-based desktop applications
PCI Express
®
Mini Card Electromechanical Specification Revision 1.1
– Addresses small card form factor for mobile and communications systems
PCI Express
®
ExpressModule™ Electromechanical Specification Revision
1.0
– Latest addition defines removable modular I/O adapters for closed chassis
servers and workstations (previously referred to as “Server I/O Module” or
“SIOM” spec)
http://www.pcisig.com/specifications/pciexpress
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