11.2. System debug access

Debug control and data access occurs through the Advanced High-performance Bus-Access Port (AHB-AP) interface. This interface is driven by either the Serial Wire Debug Port (SW-DP) or Serial Wire JTAG Debug Port (SWJ-DP) components. See Chapter 12 Debug Port for information on the SW-DP and SWJ-DP components. Access includes:

Figure 11.1 shows the structure of the system debug access, and shows how the AHB-AP can access each of the system components and external buses.

Figure 11.1. System debug access block diagram

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