10.4.10. Breakpoint Extended Value Registers

The DBGBXVR characteristics are:


Holds a value for use in breakpoint matching, to support Context ID matching.

Usage constraints

Used in conjunction with a DBGBCR, see Breakpoint Control Registers, and Breakpoint Value Registers. Each DBGBXVR is associated with a DBGBCR and DBGBVR to form a Breakpoint Register Pair (BRP). DBGBXVRn is associated with DBGBCRn and DBGBVRn to form BRPn.


The processor implements 2 BRPs that can be used for Context ID matching, and is specified by the DBGDIDR.CTX_CMPs field, see Debug ID Register.


See the register summary in Table 10.1.

Figure 10.12 shows the DBGBXVR bit assignments.

Figure 10.12. DBGBXVR 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.

Table 10.12 shows the DBGBXVR bit assignments.

Table 10.12. DBGBXVR bit assignments




VMID value. Used to compare with the Virtual Machine ID (VMID) field, held in the Virtualization Translation Table Base Register (VTTBR). See the ARM Architecture Reference Manual for more information.

Copyright © 2011 ARM. All rights reserved.ARM DDI 0438D