SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The A53SS0 is a multi-core Arm Cortex-A53 subsystem with embedded debug capability and features, including:
A summary of the A53SS0 debug capabilities and features is detailed in Table 13-10.
Capability | Feature | Notes |
---|---|---|
Basic Debug | Independent debug configuration | Debug resource configuration is performed over a configuration interface that is isolated from functional traffic |
ROM table | Facilitates discovery of debug resources within debug configuration address space | |
Processor halt | Support user-requested entry into the suspended state | |
Single step | Execution of a single instruction before entering the suspended state | |
Software breakpoints | Software breakpoints are supported via opcode replacement | |
Hardware breakpoints | Six Debug Breakpoint resources support hardware breakpoints | |
Hardware watchpoints | Four Debug Watchpoint resources support data address breakpoints | |
Core register access | Access to processor core registers | |
System memory access | Access to memory from perspective of CPU | |
Vector catch | Halting in response to an exception | |
Arm® TrustZone® debug authentication | Provisioning for DBGEN, NIDEN, SPIDEN, SPNIDEN, SUIDEN, and SUNIDEN | |
Cross Triggering | Debug state | Support for controlling execution state (run, halt) via triggers and creating triggers upon entry into debug state |
PMU | PMU interrupt trigger | |
ETM | Four ETM external triggers | |
CPU | CTI interrupt into CPU | |
PMU | Profile Counters | Six counters can be used to count different events available for gathering statistics on the operation of the processor and memory system |
Cycle Counter | One dedicated counter available for counting CPU clock cycles | |
ETM | Instruction trace with cycle counting | Support for tracing instruction execution with timing information |
Branch broadcast tracing | Support for tracing branch address details even in circumstances where that information might be discoverable from object code | |
Return stack tracing | Support for tracing of the return stack | |
Stall Control | Support for stalling the A53 processor to avoid ETM overflows | |
Global timestamping | Support for attaching a global timestamp to trace traffic |