L54: SoC: on-chip communication

Welcome to Lecture 54 of the course "Digital System Design" by Prof. Nitin Chandrachoodan Full Course: https://study.iitm.ac.in/es/course_pa... Video Overview This lecture explores the evolution of on-chip communication in SoCs from traditional shared bus architectures to modern network-on-chip (NoC) solutions. As the number of integrated IP blocks grows and bandwidth requirements increase the limitations of shared buses become more apparent prompting the transition to scalable communication methods. We begin by examining bus standards such as AMBA, including AHB, APB, and AXI, and discuss the architectural challenges of shared communication such as arbitration bottlenecks and limited concurrency. We then shift focus to NoC architectures which offer improved throughput, parallelism, and better traffic management across large digital systems. The session also touches upon advanced design considerations in SoC interconnects including clock domain crossing (CDC), latency, congestion management, and power optimization—all crucial for building high-performance energy-efficient chips.Whether you're working on embedded systems, microcontrollers, or custom ASICs, this lecture provides a foundational understanding of how communication fabrics scale with design complexity. About IIT Madras' online Bachelor of Science programme IIT Madras offers four-year BS programmes that aim to provide quality education to all, irrespective of age, educational background, or location. The BS programme has multiple levels, which provide flexibility to students to exit at any of these levels. Depending on the courses completed and credits earned, the learner can receive a Foundation Certificate from IITM CODE (Centre for Outreach and Digital Education), Diploma(s) from IIT Madras, or BSc/BS Degrees from IIT Madras. For more details, Visit: https://www.iitm.ac.in/academics/stud... #SystemOnChip #SoC #BusArchitecture #AMBA #AHB #APB #AXI #NetworkOnChip #NoC #OnChipCommunication #Interconnect #VLSI #DigitalDesign #ClockDomainCrossing #CDC #Latency #Throughput #PowerOptimization #PhysicalDesign #IPBlocks #Microcontroller #Hardware #Ethernet #USB #DMA #GPU #CPU #MeshNetwork #RoutingProtocols #PacketSwitching #CircuitSwitching #CommunicationFabric #SoCDesign