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Debugger General Information
SYSFAIL* Assertion/Negation
Upon a
❏Confidence test failure
❏NVRAM checksum error
❏NVRAM low battery condition
❏Local memory configuration status
❏Self test (if system mode) has completed with error
❏MPU clock speed calculation failure
After debugger initialization is done and none of the above situations have occurred, the SYSFAIL* line is negated. This indicates to the user or VMEbus masters the state of the debugger. In a
MPU Clock Speed Calculation
The clock speed of the microprocessor is calculated and checked against a user definable parameter housed in NVRAM (refer to the CNFG command in the Commands Table). If the check fails, a warning message displays. The calculated clock speed is also checked against known clock speeds and tolerances.