
© 2010 Advanced Micro Devices, Inc. 47062 SR5650 Databook 2.00
Proprietary Table of Contents-1
Table of Contents
Chapter 1: Overview
1.1 Introducing the SR5650 ......................................................................................................................................................1-1
1.2 SR5650 Features .................................................................................................................................................................1-1
1.2.1 CPU Interface .......................................................................................................................................................1-1
1.2.2 PCI Express® Interface ........................................................................................................................................1-1
1.2.3 A-Link Express II Interface..................................................................................................................................1-1
1.2.4 Multiple Processor Support ..................................................................................................................................1-2
1.2.5 Multiple Northbridge Support ..............................................................................................................................1-2
1.2.6 Power Management Features ...............................................................................................................................1-2
1.2.7 PC Design Guide Compliance..............................................................................................................................1-2
1.2.8 Test Capability Features .......................................................................................................................................1-2
1.2.9 Packaging .............................................................................................................................................................1-2
1.3 Software Features................................................................................................................................................................1-2
1.4 Device ID ............................................................................................................................................................................1-3
1.5 Branding Diagrams .............................................................................................................................................................1-3
1.6 Conventions and Notations .................................................................................................................................................1-4
1.6.1 Pin Names.............................................................................................................................................................1-4
1.6.2 Pin Types ..............................................................................................................................................................1-4
1.6.3 Numeric Representation .......................................................................................................................................1-4
1.6.4 Hyperlinks ............................................................................................................................................................1-4
1.6.5 Acronyms and Abbreviations ...............................................................................................................................1-4
Chapter 2: Functional Descriptions
2.1 HyperTransport™ Interface ................................................................................................................................................2-1
2.1.1 Overview ..............................................................................................................................................................2-1
2.1.2 HyperTransport™ Flow Control Buffers .............................................................................................................2-3
2.2 IOMMU ..............................................................................................................................................................................2-4
2.3 Multiple Northbridge Support.............................................................................................................................................2-4
2.4 Interrupt Handling...............................................................................................................................................................2-4
2.4.1 Legacy INTx Handling.........................................................................................................................................2-4
2.4.2 Non-SB IOAPIC Support .....................................................................................................................................2-4
2.4.3 Integrated IOAPIC Support..................................................................................................................................2-5
2.4.4 MSI Interrupt Handling and MSI to HT Interrupt Conversion ............................................................................2-5
2.4.5 Internally Generated Interrupts.............................................................................................................................2-5
2.4.6 IOMMU Interrupt Remapping .............................................................................................................................2-5
2.4.7 Interrupt Routing Architecture .............................................................................................................................2-5
2.5 RAS Features ......................................................................................................................................................................2-7
2.5.1 Parity Protection ...................................................................................................................................................2-7
2.5.2 SERR_FATAL# and NON_FATAL_CORR# Pins .............................................................................................2-7
2.5.3 NMI# and SYNCFLOODIN# ..............................................................................................................................2-8
2.5.4 Suggested Platform Level RAS Sideband Signal Connections............................................................................2-8
2.5.5 Error Reporting and Logging ...............................................................................................................................2-9
2.5.6 Interrupt Generation on Errors ........................................................................................................................... 2-11
2.5.7 Poisoned Data Support ....................................................................................................................................... 2-11
2.5.8 PCIe® Link Disable State .................................................................................................................................. 2-11