L138_Starterware cppi41dma

I am working to implement the cppi41 dma function in my usb driver.

Now I am walking in the sample code cppi41dma.c in the L138 StarterWare.

In the function CppiDmaGetINTD0Status(), it read the register "CPDMA_INTD_0_REGISTER".

It's address is 0x01E03200, but I can not find the register in the datasheet "sprs586d".

What is this register? and what manual should I read?

Thank you for your help!