Specifications

Table Of Contents
ARM Debugger 108 ARM specific SYStem Commands
©1989-2014 Lauterbach GmbH
SYStem.Option PWRCHECKFIX Check power and clock
Default: OFF.
Fix for a certain chip bug: It uses the OSLK bit instead of the SPD bit of the PRSR register to detect power
down.
This option is only available on Cortex-R, Cortex-A.
SYStem.Option PWRDWN Allow power-down mode
Default: OFF.
ARM11: If this option is OFF, the debugger sets the external signal DBGNOPWRDWN high in order to force
the system power controller in emulate mode. Otherwise the communication to the debugger gets lost when
entering power down state.
Some OMAPxxxx derivatives: If this option is OFF, the debugger forces the OMAP to keep clock and keep
power.
Cortex-R, Cortex-A: Controls the PWRDWN bit in device power-down and reset control register (PRCR).
This option is only available on ARM11, Cortex-R, Cortex-A.
SYStem.Option PWRDWNRecover Mode to handle special power recovery
Default: OFF.
Assumes SYStem.JtagClock RTCK is selected.
When the target core is running and RTCK stops working for longer than specified by SYStem.Option
PWRDWNRecoverTimeout it is assumed power is gone. In this case “running (power down)” will be shown.
On power recovery the target logic ensures the core immediately enters debug mode by asserting DBGRQ
signal. The debugger detects the recovery, restores all debug register and restarts the program execution.
Format: SYStem.Option PWRCHECKFIX [ON | OFF]
Format: SYStem.Option PWRDWN [ON | OFF]
Format: SYStem.Option PWRDWNRecover [ON | OFF]