Regarding SCC in DTS

Hi,
This SCC Config in DTS  has some thing like  the  following.  Can You Explain the two lines. I would be grateful to you if you could help me understanding. What is that 1e and 3 doing? What does the interrupt-parent doing?

scc@a00 {

               .......
               interrupts = <1e 3>;
               interrupt-parent = <&Cpm_pic>;
}

Regards,
Vignesh Kumar