most ARM Cortex derivates have a datasheet for the specific chip and a reference manual for the line of chips. In the reference manual u find the discription of the peripherials and the registers. http://www.infineon.com/cms/de/produ...91de8#ispnTab4
have a look at this page. And consider the application notes for the different peripherials also, these are quite good.
regards
tec
got pretty helpful. thanks for the post.. seeking for more :)