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Context ID Comparator Control Register 0

The TRCCIDCCTLR0 characteristics are:

Purpose

Controls the mask value for the context ID comparators.

Usage constraints
  • Accepts writes only when the trace unit is disabled.

  • If software uses the TRCCIDCVRn registers, where n=0 to 3, then it must program this register.

  • If software sets a mask bit to 1 then it must program the relevant byte in TRCCIDCVRn to 0x00.

Configurations

Available in all configurations.

Attributes

See the register summary in Table 13.3.

Figure 13.50 shows the TRCCIDCCTLR0 bit assignments.

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Table 13.51 shows the TRCCIDCCTLR0 bit assignments.

Table 13.51. TRCCIDCCTLR0 bit assignments
Bits Name Function
[31:4] -

Reserved, res0.

[3:0] COMP0

Controls the mask value that the trace unit applies to TRCCIDCVR0. Each bit in this field corresponds to a byte in TRCCIDCVR0. When a bit is:

0

The trace unit includes the relevant byte in TRCCIDCVR0 when it performs the Context ID comparison.

1

The trace unit ignores the relevant byte in TRCCIDCVR0 when it performs the Context ID comparison.


The TRCCIDCCTLR0 can be accessed through the internal memory-mapped interface and the external debug interface, offset 0x680.

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