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Dubhe-90
High Performance 64-bit RISC-V Processor
data centers, PC, mobile devices, high-performance network communications, and machine learning
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Dubhe-80
64-bit application processor for energy-efficient computation
mobile, desktop, AI, and automotive
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StarLink-500
StarFive's first self-developed interconnect fabric IP with cache coherence support
supporting the construction of multi-cores and SoC to provide cache coherence NoC
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StarLink-700
StarFive's self-developed interconnect fabric IP with cache coherence support
supporting cache coherence, enabling the construction of manycore SoC solution
StarLink-700
Feature
Providing NoC with cache coherence
- Connecting up to 256 CPU cores, IO devices, and DDR, while maintaining cache coherence within the SoC scope
High Performance:
- Providing a maximum of 512 MB Last Level Cache (LLC) with Snoop Filter, enhancing the efficiency of coherence maintenance modules and memory hierarchy performance.
High scalability
- Employing mesh NoC to enhance expandability, and a dedicated control NoC to support control command transmission
Low latency
- Adopting a semi-custom design approach to reduce NoC transmission latency.
Efficient data exchange
- Supporting CPU and IO devices to share the LLC, simplifying CPU and IO data exchange, and improving performance
Low power consumption
- Supporting low power consumption technologies such as LLC way shutdown and Architecture Clock Gating
High reliability
- Snoop Filter and LLC support ECC (SEC-DED, Single Error Correction Double Error Detection)
Design Specifications
High bandwidth, low power consumption, low latency
Support Component Aggregation Layer (CAL)
Topology: Mesh
Frequency: 1.5 GHz @ 12nm (Reference)
Support up to 256 CPU Cores
Support up to 128 Fully Coherent Master Nodes (FCM)
Support multiple I/O Coherent Master Nodes (CIO)
Maximum node count: 12x12
Single node supports 2-5 devices
Max memory device ports: 40
Configurable data path link width: 128/256/512b
