We use ADV7180 at NTSC mode.
Please let me know about video input signal down detection.
1. Please let me know how to use Status 1 Function IN_LOCK described in Table 21..
2. Please let me know how to use Status 1 Function FSC_LOCK described in Table.21.
3. When ADV7180 is set to 0x0C DEF_VAL_EN = 1
（Force free-run mode on and outputblue screen）,
is output STATUSB 1 , which is described in Figure 21. Lock Related Signal Path, is changed ?
4. We will confirm IN_LOCK at video down detection.
If there is any good method, please let me know your advice.