ISO/IEC INTERNATIONAL STANDARD 18372 First edition 2004-12 Information technology - RapidloTM interconnect specification IEC ISO Reference number ISO/IEC 18372:2004(E) Copyright International Organization for Standardization ted without license from IHS Not for Resale yhemainaanaioSandardizato orneworkingmitedwithout licene fromH Not for Resale ISO/IEC INTERNATIONAL STANDARD 18372 First edition 2004-12 Information technology - RapidloTM interconnect specification ISO/IEC2004 ISO/IEC Copyright Office:Case postale 56·CH-1211 Geneve 20·Switzerland IEC PRICE CODE XJ ISO For price, see current catalogue Copyright International Organization for Standardization ieproduced by IHS unde itted without license from IHS Not for Resale yhemainaanaioSandardizato orneworkingmitedwithout licene fromH Not for Resale -3 - ISO/IEC @ 18372:2004(E) Table of Contents Foreword. 27 Introduction.. .28 Summary. .33 Introduction. .33 1 Partition I - Input/Output Logical Specification. . ..38 I.1 Overview. .38 1.2 Contents . .38 1.3 Normative References. .38 Chapter 1 - System Models . 1.1 Processing Element Models . .38 1.1.1 Processor-Memory Processing Element Model. . .39 1.1.2 Integrated Processor-Memory Processing Element Model . : : 39 1.1.3 Memory-Only Processing Element Model . : 40 1.1.4 Processor-Only Processing Element . 40 1.1.5 I/O Processing Element . : 40 1.1.6 Switch Processing Element . 41 1.2 System Issues . 41 1.2.1 Operation Ordering . 41 1.2.2 Transaction Delivery . 42 1.2.3 Deadlock Considerations . 2 Chapter 2 - Operation Descriptions . . .43 2.1 I/O Operations Cross Reference . : 44 2.2 I/O Operations. . 44 2.2.1 Read Operations 45 2.2.2 Write and Streaming-Write Operations . 45 2.2.3 Write-With-Response Operations . 45 2.2.4Atomic (Read-Modify-Write) Operations . 46 2.3System Operations 46 2.3.1 Maintenance Operations 46 2.4 Endian, Byte Ordering, and Alignment 46 3 Chapter 3 - Packet Format Descriptions . .48 3.1 Request Packet Formats . 48 3.1.1 Addressing and Alignment 48 3.1.2 Field Definitions for All Request Packet Formats. 48 3.1.3 Type O Packet Format (Implementation-Defined). 51 3.1.4 Type 1 Packet Format (Reserved) . : 51 3.1.5 Type 2 Packet Format (Request Class) 51 3.1.6 Type 3-4 Packet Formats (Reserved) 52 3.1.7 Type 5 Packet Format (Write Class) . 52 3.1.8 Type 6 Packet Format (Streaming-Write Class) 53 3.1.9 Type 7 Packet Format (Reserved) . 53 3.1.10 Type 8 Packet Format (Maintenance Class) 53 3.1.11 Type 9-11 Packet Formats (Reserved) 55 Copyright International Organization for Standardization se from IH: Not for Resale -3 - ISO/IEC @ 18372:2004(E) Table of Contents Foreword. 27 Introduction.. .28 Summary. .33 Introduction. .33 1 Partition I - Input/Output Logical Specification. . ..38 I.1 Overview. .38 1.2 Contents . .38 1.3 Normative References. .38 Chapter 1 - System Models . 1.1 Processing Element Models . .38 1.1.1 Processor-Memory Processing Element Model. . .39 1.1.2 Integrated Processor-Memory Processing Element Model . : : 39 1.1.3 Memory-Only Processing Element Model . : 40 1.1.4 Processor-Only Processing Element . 40 1.1.5 I/O Processing Element . : 40 1.1.6 Switch Processing Element . 41 1.2 System Issues . 41 1.2.1 Operation Ordering . 41 1.2.2 Transaction Delivery . 42 1.2.3 Deadlock Considerations . 2 Chapter 2 - Operation Descriptions . . .43 2.1 I/O Operations Cross Reference . : 44 2.2 I/O Operations. . 44 2.2.1 Read Operations 45 2.2.2 Write and Streaming-Write Operations . 45 2.2.3 Write-With-Response Operations . 45 2.2.4Atomic (Read-Modify-Write) Operations . 46 2.3System Operations 46 2.3.1 Maintenance Operations 46 2.4 Endian, Byte Ordering, and Alignment 46 3 Chapter 3 - Packet Format Descriptions . .48 3.1 Request Packet Formats . 48 3.1.1 Addressing and Alignment 48 3.1.2 Field Definitions for All Request Packet Formats. 48 3.1.3 Type O Packet Format (Implementation-Defined). 51 3.1.4 Type 1 Packet Format (Reserved) . : 51 3.1.5 Type 2 Packet Format (Request Class) 5