You copied the Doc URL to your clipboard.

Arm Cortex-A55 Core Technical Reference Manual : TRCTSCTLR, Global Timestamp Control Register

TRCTSCTLR, Global Timestamp Control Register

The TRCTSCTLR controls the insertion of global timestamps in the trace streams. When the selected event is triggered, the trace unit inserts a global timestamp into the trace streams. The event is selected from one of the Resource Selectors.

Bit field descriptions

Figure D8-68 TRCTSCTLR bit assignments

RES0, [31:8]
TYPE, [7]
Single or combined resource selector.
RES0, [6:4]
SEL, [3:1]
Identifies the resource selector to use.

Bit fields and details not provided in this description are architecturally defined. See the Arm® Architecture Reference Manual Armv8, for Armv8-A architecture profile.

The TRCTSCTLR can be accessed through the external debug interface, offset 0x030.