SCI DMA Rx not generating interrupt on BTC

Hello,

i am trying to transfer data on SCI using DMA but i dont get interrupt when BTC occurs on Rx.

but i get interrupt on Tx BTC.

for Rx BTC i have to poll 

while(dmaGetInterruptStatus(DMA_CH1, BTC) != TRUE);

{

}

i would like to get interrupt generated like in Tx BTC.