B1.21 ID Register 4

The TRCIDR4 indicates the available ETM-M33 resources.

Usage constraints
There are no usage constraints.
Available in all configurations.
See the register summary in Table B1-1 ETM-M33 register summary and Table B1-5 Implementation specific and identification registers.

The following figure shows the TRCIDR4 bit assignments.

Figure B1-24 TRCIDR4 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.

The following table shows the TRCIDR4 bit assignments.

Table B1-34 TRCIDR4 bit assignments

Bits Name Function
[31:28] NUMVMIDC Number of Virtual Machine ID (VMID) comparators implemented:
0b0000VMID comparators are not implemented.
[27:24] NUMCIDC Number of Context ID comparators implemented:
0b0000Context ID comparators are not supported.
[23:20] NUMSSCC Number of single-shot comparator controls implemented:
0b0001One single-shot comparator control is implemented.
[19:16] NUMRSPAIR Number of resource selection pairs implemented:
0b0001Two resource selection pairs are implemented.
[15:12] NUMPC Number of processor comparator inputs implemented for the DWT:
0b0010Two processor comparator inputs.
0b0100Four processor comparator inputs.
[11:9] - res0.
[8] SUPPDAC Data address comparisons implemented:
0Data address comparisons are not supported.
[7:4] NUMDVC Number of data value comparators implemented:
0b0000No data value comparators are implemented.
[3:0] NUMACPAIRS Number of address comparator pairs implemented:
0b0000No address comparator pairs are implemented.
Non-ConfidentialPDF file icon PDF versionARM 100232_0002_00_en
Copyright © 2016, 2017 ARM Limited or its affiliates. All rights reserved.