Event monitor having switch matrix, separate counter, and compare circuitry

摘要

An error monitor receives a first list of selected system events with each selected system event having an associated range. The occurrence of each selected system event is counted over a selected time period. An error indication is provided based on a comparison of each of the counts of the occurrence of each selected system event over the selected time period with the associated range. Operational profiles are used to store lists of selected system events with each selected system event having an associated range for each operational profile.

主权项

1. An error monitor comprising:
a) a clock lead; b) event monitor control leads; c) switch matrix circuitry having event inputs, event monitor control inputs connected to the event monitor control leads, and separate event signal outputs; d) first event counter circuitry having an input connected to a first event signal output, event monitor control inputs connected to the event monitor control leads, a clock input connected to the clock lead, and a first event count output; e) first event compare circuitry having an input connected to the first event count output, event monitor control inputs connected to the event monitor control leads, and a first error output; f) second event counter circuitry having an input connected to a second event signal output, event monitor control inputs connected to the event monitor control leads, a clock input connected to the clock lead, and a second event count output; and g) second event compare circuitry having an input connected to the second event count output, event monitor control inputs connected to the event monitor control leads, and a second error output.