Description
You may see the PWRMGT_SCL signal get stuck low during the configuration of a SmartVID (-V) Intel® Stratix® 10 device operating in PMBus Slave mode if the PMBus Master has started the ARA flow before the PWRMGT_ALERT signal has been asserted (driven low) by the Intel Stratix 10 device.
Resolution
Do not start the ARA flow until after the Intel® Stratix® 10 device has asserted the PWRMGT_ALERT signal. Refer to the Intel® Stratix® 10 Power Management User Guide for the recommended flow.