7.1.1. CSTF blocks

Figure 7.1 shows the blocks in the CSTF.

Figure 7.1. CSTF block diagram

The CSTF contains the following blocks:

Input selection multiplexor

In CoreSight this is a fixed input of eight ports.


The arbiter determines the priority of the ATB inputs. The CoreSight arbiter operates a static priority scheme. The highest priority input is selected and after a fixed hold time the input with the next highest priority is selected, if active.


Control registers for the programming interface.

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