HS-03 · Chapter 7 · High-Speed Interfaces & Memory
USB 2.0 vs USB 3.x physical layer
Describe the physical layer of USB 2.0 and USB 3.x. How does the host detect a device and its speed?
| Level | ●● onsite technical |
| Track | SI & high-speed |
| Really testing | PHY detail beyond "D+ and D−". |
Full worked answer: in the book, page 176 — what to say first, how to explain it, the numbers worth quoting and the follow-ups. About the book →
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