Ucie Spec !!top!! Jun 2026

UCIe follows a layered stack (similar to networking or PCIe):

| Layer | Function | |-------|----------| | | Electrical signaling, clocking, link training, PHY logic. | | Die-to-Die Adapter Layer | Link management, parameter negotiation, error detection/recovery (CRC, retry). | | Protocol Layer | Maps standard protocols (PCIe, CXL, Streaming) onto UCIe. | ucie spec

UCIe 2.0 (released August 2024, backward compatible with 1.0/1.1). This guide covers both. UCIe follows a layered stack (similar to networking

UCIe Consortium (founded by AMD, Arm, Google, Intel, Meta, Microsoft, Qualcomm, Samsung, TSMC). error detection/recovery (CRC