3.7.7. Integration Mode Control register

The ITCTRL register characteristics are:


Enables topology detection. See the ARM® CoreSight™ Architecture Specification.

This register enables the component to switch from a functional mode, the default behavior, to integration mode where the inputs and outputs of the component can be directly controlled for the purposes of integration testing and topology detection.


When a device is in integration mode, the intended functionality might not be available.

After performing integration or topology detection, reset the system to ensure correct behavior of CoreSight and other connected system components that the integration or topology detection can affect.

Usage constraints

There are no usage constraints.


This register is available in all configurations.


See the register summary in Table 3.33.

Figure 3.35 shows the bit assignments.

Figure 3.35. ITCTRL register bit assignments

To view this graphic, your browser must support the SVG format. Either install a browser with native support, or install an appropriate plugin such as Adobe SVG Viewer.

Table 3.40 shows the bit assignments.

Table 3.40. ITCTRL register bit assignments




Integration Mode Enable.


Disable integration mode.


Enable integration mode.

Copyright © 2011-2013 ARM. All rights reserved.ARM DDI 0480F