As dollar has breached resistance at 89.89 in Australia session, suggesting erratic decline from 93.78 has indeed formed a temporary low last week at 88.55 and consolidation with upside bias is seen for further gain to 90.45/50, however, reckon 90.90/91.10 should hold due to near term over bought condition.  
Below over night 89.32 low would suggest aforesaid correction has possibly ended and bring weakness to 89.00/10 n then 88.75/80.