Table of Contents
Advertisement
XMC7000: Setting the Clock Supervision (CSV) parameters
Overview
1
Overview
Figure 1
shows the signal example of the CSV.
Monitored Clock
Reference Clock
Monitor Event
Lower Limit
Upper Limit
Figure 1
CSV operation signal example
The basic operation principle of the CSV circuit is as follows:
Period is the monitored clock count while 'target' is the reference clock count. In an ideal case, the period
•
value and the target value are same.
The monitored clock generates a monitor event (period), and the reference clock generates lower and upper
•
limits.
The monitor event is compared against the lower and upper limits.
•
An error is reported if the monitor event ≤ Lower limit, or monitor event > upper limit.
•
The CLK_HF0 CSV must use the reset because the fault structure runs on CLK_HF0.
Application note
Period
Target
Lower Limit
Upper Limit
3
the allowed frequency window
002-34390 Rev. *A
2023-06-05
Advertisement
Table of Contents
