TRCITCTRL, Trace Integration Mode Control Register

The TRCITCTRL characteristics are:

Purpose

A component can use TRCITCTRL to dynamically switch between functional mode and integration mode. In integration mode, topology detection is enabled. After switching to integration mode and performing integration tests or topology detection, reset the system to ensure correct behavior of CoreSight and other connected system components.

For additional information, see the CoreSight Architecture Specification.

Configuration

This register is present only when FEAT_ETE is implemented and FEAT_TRC_EXT is implemented. Otherwise, direct accesses to TRCITCTRL are RES0.

Attributes

TRCITCTRL is a 32-bit register.

Field descriptions

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
RES0																															IME

Bits [31:1]

Reserved, RES0.

IME, bit [0]
When topology detection or integration functionality is implemented:

Integration Mode Enable.

IME	Meaning
0b0	Component functional mode.
0b1	Component integration mode. Support for topology detection and integration testing is enabled.

Otherwise:

Reserved, RES0.

Accessing TRCITCTRL

External debugger accesses to this register are IMPLEMENTATION DEFINED when the trace unit is not in the Idle state.

TRCITCTRL can be accessed through the external debug interface:

Component	Offset	Instance
ETE	0xF00	TRCITCTRL

This interface is accessible as follows:

When OSLockStatus(), or !AllowExternalTraceAccess() or !IsTraceCorePowered(), accesses to this register generate an error response.
Otherwise, accesses to this register are RW.

26/03/2024 09:49; 67c0ae5282a7629ba0ea0ba7267b43cd4f7939f6