Qorivva MPC5xxx/SPC5xx Debugger and NEXUS Trace
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SYStem.Option FASTACCESS
Special operation mode for fast run control
FASTACCESS is a special operation mode that allows fast run control and response times, but with very
limited features. The allowed debug actions are limited to below list:
•
Go
•
Break
•
Set/Clear breakpoints and watchpoints (Break.Set / Break.Delete)
•
Write to memory using physical addresses (access class "A:")
•
Write debug registers DBCR*, DBCNT, IAC*, DAC*, DVC*, DEVENT, DDAM via SPR:
•
Read and Write access class DBG:
This feature is not available for all processors.
SYStem.Option FREEZE
Freeze system timers on debug events
Enabling this option will lead the debugger to set the FT bit in the DBCR0 register. This bit will lead the CPU
to stop the system timers (TBU/TBL and DEC) upon all debug events, that can be defined in DBCR0. The
system timers will not be frozen on events like EVTI or the brkpt instruction. The timers/clocks or watchdogs
of the on-chip peripherals are not affected by this option, but often can be configured to stop in debug mode
by a FREEZE bit. For details please see the processor reference manual.
Format:
SYStem.Option FASTACCESS
[
ON
|
OFF
]
Format:
SYStem.Option FREEZE
[
ON
|
OFF
]