USB enumeration is the intricate process through which a device and a host establish communication and identify each other's capabilities. Here's a more detailed breakdown: 1. **Connection**: When a USB device is plugged in, it sends a signal to the host to initiate communication. 2. **Powering up**: The device receives power from the host, allowing it to become operational. 3. **Device Descriptor**: The device provides basic information like its vendor ID, product ID, device class, and other details through the device descriptor. 4. **Address Assignment**: The host assigns an address to the device, allowing it to be uniquely identified on the USB bus. 5. **Enumeration Process**: The host communicates with the device to determine its type, functionality, and specific protocols it supports. 6. **Configuration**: After identification, the host configures the device according to its capabilities by loading appropriate drivers and assigning resources. 7. **Operation**: Once enumerated and configured, the device is ready for operation and interaction with the host system. This process ensures that the device is recognized and can be effectively utilized by the host system, allowing seamless communication and data transfer.
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You can access my article about SPI by clicking the link. https://lnkd.in/g3Fvpfck
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Project Manager1 at UST. Expertise in Project Management, Server BMC, BIOS, GPU, Post silicon Validation -Performance Benchmarking.
4moThanks for sharing