Interrupt Enable Register
| FIFO_ALMOST_FULL_IRQ_EN | FIFO almost full warning interrupt enable |
| FIFO_OVERFLOW_IRQ_EN | FIFO overflow error interrupt enable |
| CH0_AUDIO_DETECT_IRQ_EN | Channel 0 audio peak detection interrupt enable |
| CH1_AUDIO_DETECT_IRQ_EN | Channel 1 audio peak detection interrupt enable |
| CH2_AUDIO_DETECT_IRQ_EN | Channel 2 audio peak detection interrupt enable |
| CH3_AUDIO_DETECT_IRQ_EN | Channel 3 audio peak detection interrupt enable |
| CH4_AUDIO_DETECT_IRQ_EN | Channel 4 audio peak detection interrupt enable |
| CH5_AUDIO_DETECT_IRQ_EN | Channel 5 audio peak detection interrupt enable |
| CH6_AUDIO_DETECT_IRQ_EN | Channel 6 audio peak detection interrupt enable |
| CH7_AUDIO_DETECT_IRQ_EN | Channel 7 audio peak detection interrupt enable |