Multi-Lane Multi-Mode Data Transport Switching
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Solution Overview
Problem
Existing data transport systems, such as USB type-C connectors, require a multiplexing function to process electrical signals according to different protocols, but they lack efficient mechanisms to manage and switch between multiple protocols on a multi-lane, multi-mode connector.
Innovation Solution
The apparatus includes a semiconductor die with internal processors and switches that connect I/O pads to bond pads and ports, allowing for protocol-specific processing of electrical signals, with logical signals controlling the switches to route signals appropriately between internal processors and an external processor, supporting USB and DisplayPort protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multiplexing function is used to process electrical signals for different protocols, then protocol versatility is improved, but device complexity increases
Solution Approach 1:
The device is segmented into multiple independent processing paths, each handling a specific protocol (USB protocol processing path and DisplayPort protocol processing path). This allows the system to support multiple protocols while keeping each processing path relatively simple and modular, resolving the contradiction between versatility and complexity.
Solution Approach 2:
The connector and semiconductor device are designed with universal multi-functionality to support both USB and DisplayPort protocols through a single physical interface. The same physical pins and electrical signals can be used for different protocols, achieving protocol versatility without proportionally increasing device complexity.
2Productivity
If multiple lanes are used for data transport, then data transport capacity is improved, but signal management complexity increases
Solution Approach 1:
The data transport capability is segmented into multiple independent lanes (first lane, second lane, third lane), each capable of carrying electrical signals for different protocols. This segmentation allows high data transport capacity while simplifying signal management within each lane, as each lane can be independently controlled by its own switch and processor.
Data Source
AI summary
An apparatus includes: a semiconductor die including a first I/O (input/output) pad, a second I/O pad, a switch, and an internal processor, wherein the switch is configured to short the first I/O pad to the second I/O pad when a logical signal is asserted; and a semiconductor package including a first bond pad configured to electrically connect to the first I/O pad, a second bond pad configured to electrically connect to the second I/O pad, a first port configured to electrically connect to a pin of a multi-lane, multi-mode connector, a second port configured to electrically connect to an external processor, a first routing path configured to electrically connect the first port to the first bond pad, and a second routing path configured to electrically connect the second port to the second bond pad, wherein the external processor is configured to process an electrical signal at the second port in accordance with a first protocol when the logical signal is asserted, and the internal processor is configured to process an electrical signal at the first I/O pad in accordance with a second protocol when the logical signal is de-asserted.