warning в WebPack, подскажите что сделать чтобы их не было Опции

[Shumok]

Я пока только учусь работать с WebPakom. Помогите разобраться.
В отчете синтеза выдаются сообщения:
Xst:2185 - "scr_new.vf" line 54: Possible simulation mismatch on property <IBUF_DELAY_VALUE> of instance <XLXI_4> set by attribute.
WARNING:Xst:2185 - "scr_new.vf" line 54: Possible simulation mismatch on property <IFD_DELAY_VALUE> of instance <XLXI_4> set by attribute.
WARNING:Xst:2185 - "scr_new.vf" line 54: Possible simulation mismatch on property <IOSTANDARD> of instance <XLXI_4> set by attribute.

IOSTANDARD в UCF файле прописал = LVTTL. Что еще надо?

[Shumok]

#PACE: Start of Constraints generated by PACE
#PACE: Start of PACE I/O Pin Assignments
NET "Clk" LOC = "B4" | IOSTANDARD = LVTTL ;
NET "Data" LOC = "C4" | IOSTANDARD = LVTTL ;
NET "Enable" LOC = "A5" | IOSTANDARD = LVTTL ;
NET "Int" LOC = "B5" | IOSTANDARD = LVTTL ;
NET "Psp" LOC = "A6" | IOSTANDARD = LVTTL ;
NET "Q" LOC = "A4" | IOSTANDARD = LVTTL ;
#PACE: Start of PACE Area Constraints
#PACE: Start of PACE Prohibit Constraints
#PACE: End of Constraints generated by PACE

[CodeWarrior1241]

#PACE: Start of Constraints generated by PACE
#PACE: Start of PACE I/O Pin Assignments
NET "Clk" LOC = "B4" | IOSTANDARD = LVTTL ;
NET "Data" LOC = "C4" | IOSTANDARD = LVTTL ;
NET "Enable" LOC = "A5" | IOSTANDARD = LVTTL ;
NET "Int" LOC = "B5" | IOSTANDARD = LVTTL ;
NET "Psp" LOC = "A6" | IOSTANDARD = LVTTL ;
NET "Q" LOC = "A4" | IOSTANDARD = LVTTL ;
#PACE: Start of PACE Area Constraints
#PACE: Start of PACE Prohibit Constraints
#PACE: End of Constraints generated by PACE

Это не может быть все что есть. Вы выставляете IFD_DELAY_VALUE в UCF?