frame format virtex 5

hello ,

i v some questions about frame format in the bitstream of virtex

• frame = 41 words = (41* 32) bits = 1312 bits , i would like to know the format of this frame ; i mean wich comes first clk config ?Bram config ? ... tell me about it

• how can i set the beginning of the first frame to '1' ? (rbt file)

• why serial debug is desabled for encrypted bitstream ?

Thank you for help .