Programmable Chip-to-Chip Interface for Flexible Chiplet Mapping
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Solution Overview
Problem
Existing chip-to-chip interfaces in integrated circuits (ICs) limit flexibility by requiring hardwired connections, restricting the ability to dynamically adapt to different chiplet configurations and functionalities.
Innovation Solution
Implementing a programmable chip-to-chip interface that allows an anchor IC to connect with various chiplets at any port through a software programming model, enabling dynamic adaptation to configurations and requirements, and supporting multiple interface combinations without hardware changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hardwired connections are used for chip-to-chip interfaces, then device functionality is achieved, but flexibility and adaptability to different chiplet configurations are limited
Solution Approach 1:
The patent implements a programmable chip-to-chip interface that allows dynamic reconfiguration of connection mappings between anchor IC ports and chiplet IC ports. The interface can be programmed at runtime to adapt to different chiplet configurations, enabling the same physical interface to serve multiple functional purposes without hardware changes.
Solution Approach 2:
The patent changes the interface parameters from fixed hardwired connections to programmable logical mappings. By allowing the interface configuration to be modified through software programming, the system can adapt to different chiplet types and arrangements while maintaining the same physical hardware architecture.
2Adaptability or versatility
If specific port connections are hardwired for particular chiplet functionalities, then reliable connections are established, but the ability to support multiple interface combinations is reduced
Solution Approach 1:
The patent creates a universal chip-to-chip interface architecture where the same physical ports on the anchor IC can be programmed to connect to different chiplet ports depending on the required functionality. This multi-functional interface supports multiple interface combinations without requiring dedicated hardwired connections for each possible configuration.
Solution Approach 2:
The patent uses logical copying of connection mappings through programming, where the same physical interface can be configured to replicate different connection patterns as needed. The programmable nature allows the interface to copy appropriate connection mappings from a library of predefined configurations or to create custom mappings dynamically.
3Ease of manufacture
If chiplets are hardwired to specific locations on the anchor, then fabrication is simplified, but design flexibility and reconfiguration capability are limited
Solution Approach 1:
The patent introduces dynamic reconfiguration capability that allows the logical connection mapping between anchor ports and chiplet ports to be changed after fabrication. This enables the same physically fabricated device to be reconfigured for different designs and applications without requiring remanufacturing.
Solution Approach 2:
The patent separates the physical fabrication layer from the logical connection layer. The physical layout can be fabricated using standard processes, while the logical connections are defined separately through programming, allowing independent optimization of manufacturing and design flexibility.
Data Source
AI summary
Systems, methods, and apparatuses are described that enable IC architectures to enable a single anchor to connect to and accept a variety of chiplets at any port by way of a programming model that enables the anchor or chiplet to dynamically adapt to configurations, requirements, or aspects of any coupled component and provide an interface for the coupled components.