Hardware interview practice
Choose AXI or APB for a control block
A low-rate register block accepts one request at a time, supports no bursts, and should use little interface logic. Which on-chip interface is the best fit?
Choose one
Answer choices
- A. AXI-Stream, because register reads do not need an address.
- B. Full AXI, because bursts and multiple outstanding IDs reduce control-block logic.
- C. APB, because its simple two-phase, non-pipelined transfer matches low-bandwidth register access.
- D. AXI-Lite, because a five-channel interface is always smaller than APB.