Dynamic Delay Chain Queries

Hi,

I use the ALTIOBUF as an input buffer with dynamic delay chain enabled, but I get the error message (ID21131)

[h=3]DELAY_CHAIN "<name> " whose dataout feeds an IO_OBUF i or oe input must have its delayctrlin input fed by the IO_CONFIG outputdelaysetting, outputdelaysetting1 or outputdelaysetting2 output[/h]It is suggested to feed the DELAY_CHAIN delayctrlin input with either an IO_CONFIG outputdelaysetting. May I know how to feed the DELAY_CHAIN delayctrlin in QII assignment editor.

Thank you