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M205/M206 SPECIFICATIONSERR LED ConditionsLicense ViolationAn invalid license mask and key forces the M205/M206 into this mode after three minutes of operation.The mask and key settings are printed on the serialnumber label at the time of shipment.Firmware PanicUnrecoverable errors detected by the M205/M206firmware force it into panic mode. <strong>Manual</strong>ly reset theM205/M206 to resume normal operation.Watchdog HaltThe watchdog timer is a hardware device that resets thesystem if not serviced regularly by the CPU. It’s purposeis to prevent the CPU from entering an infiniteloop because of a hardware or firmware problem. Aftera watchdog interrupt, some diagnostic information issaved for debugging and the device resumes operationin Auto-reset Mode. The M205/M206 will auto-resetup to 16 times before entering non-operational WatchdogHalt.Spurious HaltUnsupported interrupts force the M205/M206 into thisnon-operational mode and typically indicate a hardwareproblem.Hardware ExceptionInternal errors such as bus errors, address errors or illegalinstructions force the M205/M206 into this nonoperationalmode.67
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