Hi, Thanks for the solution, sorry to say that i donno perl, i started learning perl recently, nut i am the biginner only. I am going through the tutorials to learn perl. but there i couldn't get how to implement the array,so my thought is to ask about the implementation of array, as above mentioned [0], 1,2. this i should implement as 0:2 fxosc_i_mult_ctrl_c_jtag, apart from this convertiona and all i did. Anyway thanks for your help and suggestion.