I have questions below. Would you mind answering to my questions?
[Background / Concern]
We want to use NTSC J/M but lock is unstable when changing INSEL from 0xE to 0xF.
* Lock in the following order
lock(NTSC4.43)-> unlock -> lock(NTSC J/M)
1. Does ADV7281A-M lock only NTSC when "Autodetect enable" register(0x07) is set to 0x02 and "VID_SEL" is set to autodetect(default)?
2. If I set above condition, is NTSC limited to NTSC J/M?
3. Does the following condition solve the customer's issue?
-> "VIL_SEL" is set to autodetect(default) and "Autodetect enable" is set to AD_NTSC_EN; NTSC autodetect enable?
4.Is there any concern when NTSC-M is input to ADV7281A-M with "Video Selection2" is set to default?
Such as the brightness of the image is slightly different due to pedestal level incorrectly captured.