what is wrong with reading *.DEF in ICC

xiaoyisimonguo

During my ICC run, design planningI have chip pins with pad cells defined in toplevel.def:My ICC read_def read the file for design planning pins on the left, bottom and right side turned OK, as expected, but top ones did not look as expected. in my DEF I have pins on top side placed like this: - pad_iopad_0 pc3b03 + FIXED ( 2170200.00 2244900.00 ) FN ; as reference bottom ones like this: - sdram_DQ_iopad_2 pc3b05 + FIXED ( 1011709.12 0 ) N ; the bottom one looks good, but the top one was still looked like orientation of N, just like the bottom one but placed on top. I actually did experiment of switching the top ones to "N", with separate DEF,  but nothing got changed out of those change, I have no idea what happened. Please help, I am stuck here, the pins to the standard cell core, of those top cells are all facing the off chip to sky