Inter-Processor Communication Controller The IPCC is used to exchange data between two processors. It provides a non blocking signaling mechanism to post and retrieve information in an atomic way.<br/> Notice that shared memory buffers are allocated in the MCU SRAM, which is not part of the IPCC block. Inter-Processor Communication Controller The IPCC is used to exchange data between two processors. It provides a non blocking signaling mechanism to post and retrieve information in an atomic way.<br/> Notice that shared memory buffers are allocated in the MCU SRAM, which is not part of the IPCC block.