(Bloomberg) -- Xilinx Inc., a supplier of key components used in mobile phone networks, said its financial results were hurt by the U.S. government ban against China's Huawei Technologies Co., and it has asked for permission to resume broader shipments to its Chinese customer. Xilinx's earnings report highlighted the difficulty U.S. chipmakers are facing as they try to navigate a trade dispute between the two countries. The comments by company executives were among the most detailed insights provided to date into an issue that's causing uncertainty for the $470-billion chip industry. The U.S. is the biggest maker of the vital electronic components and China is the biggest buyer and consumer of them. The San Jose, California-based chipmaker halted all sales to the Chinese company after it was blacklisted in mid-May by the U.S. government, Xilinx Chief Executive Officer Victor Peng said on a conference call.