I'm trying to get I2S audio output working, but for some reason the Internal_MUTE_RAW register (device address 0x98, reg address 0x65 bit 6) keeps returning a 0x40, indicating that the internal mute is active. The chip seems to boot in this state, and I haven't been able to set the right registers to disable the mute. My I2S output is currently non-functional, which is why I suspect this register. What do I need to set in order to clear this? Regs 0x66,0x67,0x68, and 0x69 on the same device address all return 0x00's(all audio mute interrupts are disabled). I am using the EVAL-7612-7511 board, but I've disconnected all lines connecting the 7612 to the 7511 & I'm polling the audio output at the rx/tx junction header J3.