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AR# 31930

Virtex-5 System Monitor - User Temperature alarm incorrectly asserted post configuration

Description


When using the Virtex-5 System Monitor User Temperature alarm, I find that the alarm incorrectly asserts after configuration if the value for the temperature alarm lower register (54H) is lower than the current FPGA temperature.

The OT temperature alarm is not affected by this issue.

Solution

To work around this issue, you should assert the System Monitor reset for 1 or 2 DCLK cycles after configuration.
AR# 31930
Date Created 11/20/2008
Last Updated 12/15/2012
Status Active
Type General Article
Devices
  • Virtex-5 FXT
  • Virtex-5 LX
  • Virtex-5 LXT
  • More
  • Virtex-5 SXT
  • Virtex-5 TXT
  • Virtex-5Q
  • Virtex-6 HXT
  • Virtex-6 LX
  • Virtex-6 LXT
  • Virtex-6 SXT
  • Less