Computer Architecture — question 3 of 10
Write a real answer. It is graded against the question's rubric, and the mastery movement is computed by the same engine the product uses. Scoring here is deterministic rather than model-written, so this page costs nothing to run and nothing is saved. In a track built from your own posting, the same rubric is graded by the model, which is what produces feedback about your reasoning rather than about coverage.
You read a 32-bit timestamp register over a serial link into a byte buffer, then reinterpret that buffer as a uint32_t and print it. On one board it prints the correct value; on a second board with a different processor, it prints a value that looks byte-shuffled — for example 0x12345678 shows up as 0x78563412. Walk me through why this happens and how you would confirm your explanation without just guessing.