3.11.7. ETB Control register

The CTL register characteristics are:

Purpose

Controls trace capture by the ETB.

Usage constraints

There are no usage constraints.

Configurations

This register is available in all configurations.

Attributes

See the register summary in Table 3.79.

Figure 3.79 shows the bit assignments.

Figure 3.79. CTL register bit assignments

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Table 3.86 shows the bit assignments.

Table 3.86. CTL register bit assignments

BitsNameFunction
[31:1]Reserved

-

[0]TraceCaptEn

ETB Trace Capture Enable. This is the master enable bit that sets FtStopped to HIGH when TraceCaptEn is LOW. When capture is disabled, any remaining data in the ATB formatter is stored to RAM. When all of the data is stored, the formatter outputs FtStopped. Capture is fully disabled, or complete, when FtStopped goes HIGH. See ETB Formatter and Flush Status Register.

0

Disable trace capture.

1

Enable trace capture.


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