(Reuters) -Chip firm Arm is cancelling an architectural license agreement that allows Qualcomm to use its intellectual property to design chips, a person familiar with the matter said, amid an ongoing legal battle between the two companies.

Qualcomm could be about to lose its license to use Arm designs for its chips — and the consequences could be huge.

Any company that makes Arm chips must license technology from Arm Holdings plc, the British company that develops the instruction set. Companies can license the instruction set and create their own CPU designs or license one of Arm's ready-made Cortex CPU core designs to incorporate into their own chips.