ADV7612 outputs interrupt , but we can not find interrupt register.
ADV7612 outputs IRQ1 at Low level ( Level interrupt mode).
We checked interrupt status register ( 0x43 and so on) because of finding bit which enable interrupt.
But, we can not find bit which value is "1".
So, we can not set register as no interruption and AV7612 remains to output interrupt.
We reset IC only to avoid above.
Is there anything register to check except register described in datasheet when interrupt is generated ?
Below is registers which we confirm now.