The 56857 offers a rich feature set and on-chip memory in a 100-pin LQFP. It includes 80 KB of on-chip program SRAM and 48 KB of on-chip data SRAM. With two enhanced serial synchronous serial interfaces (ESSIs), this device can provide outputs for 5.1-channel surround sound. The 56857 can be designed into multi-processor systems to provide internet audio and speech processing functionalities.