Interconnects

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Interconnects
Everything about on-chip and inter-chip communication
​OpenSource Implementations​
​On-Chip​
​Inter-chip​
​Resources​
​Articles​
​Books​
​Misc​
​Industry Standards​
​Research avenues​
OpenSource Implementations
On-Chip
​Wishbone Interconnect - A well-documented, popular open source standard compatible with most open-source IP.
​WishBone to AXI - A Pipelined Wishbone B4 to AXI4 bridge
​AXI Stream Components - Collection of AXI Stream bus components. Most components are fully parametrizable in interface widths.
​AXI Components - Verilog AXI components for FPGA implementation
​AXI4 - AXI4 and AXI4-Lite interface definitions and testbench utilities
​Building a custom yet functional AXI-lite slave​
​TNoC - Network on Chip implementation written in SystemVerilog
​AMBA AXI VIP - TVIP-AXI is an UVM package of AMBA AXI4 VIP
​OpenSoCFabric - A Network-On-Chip Generator
Inter-chip
​Ethernet Components - Collection of Ethernet-related components for gigabit, 10G, and 25G packet processing (8 bit and 64 bit datapaths).
​Corundum - Corundum is an open-source, high-performance FPGA-based NIC.
​Compute Express Link aka CXL Compute Express Link (CXL) is a new breakthrough high-speed CPU interconnect that enables a high-speed, efficient performance between the CPU and platform enhancements and workload accelerators.
Resources
​Great resource on simulators, research reading etc for interconnects - The Network-on-Chip blog
​NSF funded projects on NoCs - Shows distribution of funds across universities and types of work being carried out
​AXI3/4 Cheatsheet - Handy quick reference for ARM on-chip protocol standards
​Designing a Skid Buffer - Implementing a fundamental element in on-chip interconnects
Articles
​How PCI-Express works and why you should care?​
​Flexibly Scalable High Performance Architectures with Embedded Photonics​
​Interconnect Prominence In Fail-Operational Architectures​
​AXI verification​
​Lessons learned while building crossbar interconnects​
​Eating The Interconnect Alphabet Soup With Intel’s CXL​
​Inside HPE’s Gen-Z Switch Fabric​
​Silicon-Interconnect Fabric​
​Why on-chip networks are so critical to IP integration​
​The Gatekeeper of a Successful Design is the Interconnect​
​How to Measure and Optimize the System Performance of a RTL Design​
Books
​On-chip Networks - Synthesis Lectures on Computer Architecture
​A Primer on Memory Consistency and Cache Coherence​
​Principles and Practices of Interconnection Networks - A book by William J Dally
Misc
​Lightwave Research Laboratory - Research programs on optical interconnection networks for advanced computing systems, data centers, optical packet-switched routers, and nanophotonic networks-on-chip for chip multiprocessors
Industry Standards
​CCIX Consortium - Develop and promote adoption of an industry standard specification to enable coherent interconnect technologies between general-purpose processors and acceleration devices for efficient heterogeneous computing.
​ARM joins CXL​
Research avenues
​Hot Interconnects - Symposium on High-Performance Interconnects
​International Symposium on Networks-on-Chip (NOCS) is dedicated to interdisciplinary research on on-chip, package-scale, chip-to-chip, and datacenter rack-scale communication technology, architecture, design methods, applications and systems.
​NoCArc - Held in conjunction with MICRO, NoCArc provides a forum for researchers to discuss implementation of multi-core systems on chip.
Parallel Computing
Performance
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OpenSource Implementations