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Part 1

Why should JLR adopt chiplet technology?

JLR should adopt chiplet technology for a number of reasons, including:

• Performance: Chiplets can enable the development of high-performance automotive processors that are essential for demanding applications such as autonomous driving and ADAS.
• Cost: Chiplets can be more cost-effective than SoCs, especially for high-performance SoCs. This is because chiplets can be manufactured using different process nodes and from different suppliers.
• Flexibility: Chiplets offer more flexibility than SoCs. For example, chiplets can be used to create custom packages with the specific components required for a particular application.
• Upgradeability: Chiplets can be upgraded by replacing individual chiplets with newer or more powerful versions. This makes chiplets more future-proof than SoCs, which are typically difficult to upgrade.

Where should JLR adopt chiplet technology?

JLR should adopt chiplet technology in the following areas:

• Centralized vehicle architectures: Centralized vehicle architectures are becoming increasingly common in modern cars. These architectures consolidate all of the car's computing functions into a single high-performance computer. Chiplets can be used to develop more powerful and efficient centralized vehicle computers.
• Software-defined vehicles: Software-defined vehicles are vehicles that can be updated and customized using software. Chiplets can be used to develop more flexible and scalable software-defined vehicles.

Specific applications or components in a car where use of chiplets will add the most value:

• Autopilot: Autopilot is a complex system that requires a lot of computing power. Chiplets can be used to develop more powerful and efficient autopilot systems.
• Infotainment: Infotainment systems are becoming increasingly sophisticated, and they are requiring more computing power. Chiplets can be used to develop more powerful and efficient infotainment systems.

Rationale:

Autopilot and infotainment systems are two of the most important and demanding applications in modern cars. Chiplets can enable the development of more powerful, efficient, and flexible autopilot and infotainment systems.

Part 2

Micro-architecture diagram of a chiplet-based autopilot processor:

Opens in a new window www.intel.com

chipletbased autopilot processor

The chiplet-based autopilot processor consists of the following chiplets:

• CPU chiplet: The CPU chiplet is responsible for running the autopilot software.
• GPU chiplet: The GPU chiplet is responsible for processing sensor data and generating images for the driver display.
• AI chiplet: The AI chiplet is responsible for running machine learning algorithms for object detection and classification.

The chiplets are interconnected using a high-speed interconnect fabric. This fabric allows the chiplets to communicate with each other efficiently.

Micro-architecture diagram of a chiplet-based infotainment processor:

Opens in a new window www.automotiveinteriorsworld.com

chipletbased infotainment processor

The chiplet-based infotainment processor consists of the following chiplets:

• CPU chiplet: The CPU chiplet is responsible for running the infotainment software.
• GPU chiplet: The GPU chiplet is responsible for rendering graphics and video.
• Audio chiplet: The audio chiplet is responsible for processing and playing audio.

The chiplets are interconnected using a high-speed interconnect fabric. This fabric allows the chiplets to communicate with each other efficiently.

Part 3

Which parts of the complete chiplet architecture / package should JLR design and which ones we can just buy them off-the-shelf?

JLR should design the following parts of the complete chiplet architecture/package:

• Interconnect fabric: The interconnect fabric is critical to the performance and reliability of the chiplet architecture. JLR should design its own interconnect fabric to meet its specific needs.
• Chiplet packaging: The chiplet packaging is also critical to the performance and reliability of the chiplet architecture. JLR should design its own chiplet packaging to meet its specific needs.

JLR can buy the following parts of the complete chiplet architecture/package off-the-shelf:

• CPU chiplet: There are a number of off-the-shelf CPU chiplets available from semiconductor companies such as Intel and AMD.
• GPU chiplet: There are a number of off-the-shelf GPU chiplets available from semiconductor companies such as NVIDIA and AMD.
• AI chiplet: There are a number of off-the-shelf AI chiplets available from semiconductor companies such as Intel and Google.

How can JLR differentiate itself from other OEMs?

JLR can differentiate itself from other OEMs by designing its own interconnect fabric and chiplet packaging. This will allow JLR to develop more powerful, efficient, and flexible chiplet-based processors.

JLR can also differentiate itself from other OEMs by developing its




Another draft of Bard :

Part 1 1. Why JLR should adopt chiplet technology and where:

JLR should adopt chiplet technology for a number of reasons, including:

• Scalability: Chiplets can be scaled by increasing or decreasing the number of chiplets in a package. This makes chiplets more versatile than SoCs, which are typically limited to a fixed number of components.
• Cost: Chiplets can be more cost-effective than SoCs, especially for high-performance SoCs. This is because chiplets can be manufactured using different process nodes and from different suppliers.
• Flexibility: Chiplets offer more flexibility than SoCs. For example, chiplets can be used to create custom packages with the specific components required for a particular application.
• Upgradeability: Chiplets can be upgraded by replacing individual chiplets with newer or more powerful versions. This makes chiplets more future-proof than SoCs, which are typically difficult to upgrade.

Applications or components in a car where use of chiplets will add the most value:

1. Centralized vehicle architecture: A centralized vehicle architecture is an architecture where all of the vehicle's electronic systems are controlled by a single high-performance computer. Chiplets can be used to create centralized vehicle architectures that are more powerful, efficient, and reliable than traditional SoCs.

2. Software-defined vehicles (SDVs): SDVs are vehicles whose features are controlled by software. Chiplets can be used to create SDVs that are more flexible and adaptable than traditional vehicles.

Rationale:

Centralized vehicle architectures and SDVs are both key trends in the automotive industry. Chiplets can be used to enable these trends by providing a more scalable, cost-effective, flexible, and upgradeable solution than traditional SoCs.

2. Micro-architecture diagrams of chiplet-based processors for centralized vehicle architectures and SDVs:

Centralized vehicle architecture:

[Diagram of a centralized vehicle architecture using chiplets]

The chiplet-based processor for a centralized vehicle architecture would consist of the following chiplets:

• CPU chiplet: This chiplet would contain the CPU cores that are responsible for running the vehicle's operating system and applications.
• GPU chiplet: This chiplet would contain the GPU cores that are responsible for rendering graphics and performing other computationally intensive tasks.
• NPU chiplet: This chiplet would contain the NPU cores that are responsible for running artificial intelligence (AI) and machine learning (ML) models.
• Memory chiplet: This chiplet would contain the memory that is used by the CPU, GPU, and NPU chiplets.

The chiplets would be interconnected using a high-speed interconnect, such as a PCIe Gen 5 bus.

Software-defined vehicle:

[Diagram of a software-defined vehicle using chiplets]

The chiplet-based processor for an SDV would consist of the following chiplets:

• CPU chiplet: This chiplet would contain the CPU cores that are responsible for running the vehicle's operating system and applications.
• GPU chiplet: This chiplet would contain the GPU cores that are responsible for rendering graphics and performing other computationally intensive tasks.
• NPU chiplet: This chiplet would contain the NPU cores that are responsible for running AI and ML models.
• Security chiplet: This chiplet would contain the security features that are needed to protect the vehicle from cyberattacks.
• Networking chiplet: This chiplet would contain the networking interfaces that are needed to connect the vehicle to other vehicles and infrastructure.

The chiplets would be interconnected using a high-speed interconnect, such as a PCIe Gen 5 bus.

3. Which parts of the complete chiplet architecture / package should JLR design and which ones we can just buy them off-the shelf:

JLR should design the following parts of the chiplet architecture / package:

• The chiplet interconnect: The chiplet interconnect is critical to the performance of the chiplet-based processor. JLR should design a chiplet interconnect that is optimized for the specific needs of its vehicles.
• The chiplet package: The chiplet package is responsible for protecting the chiplets from the environment and providing them with power and cooling. JLR should design a chiplet package that is optimized for the specific needs of its vehicles.

JLR can buy the following parts of the chiplet architecture / package off-the-shelf:

• The chiplets: JLR can buy chiplets from a variety of semiconductor suppliers.
• **The chiplet development tools and