I have some questions.
I know that ADV7180 outputs a blue screen with no signal input.
Does this part have the function of detecting no signal input expept a blue screen ?
For example, can the detection be outputed in any pins ?
IN_LOCK indicates timing lock
LOST_LOCK indicates timing lock was lost after the previous reas of this bit
FSC_LOCK indicates Frequency Sub-Carrier lock, the color burst
Check out the lock bits in Status 1 & 3 (0x10, 0x13), accessible with I2C reads
Interrupt Status 1, 2, 3 provides an interrupt path for lock status changes. These could be used as a dedicated pin however they would have to be cleared after each check so new status changes could be lock in.
Hello GuenterLThank you for quick response.I would like to confirm followings. Is my understanding correct ?
1. "IN LOCK" is applicable to luma (luminance?). 2. "LOST LOCK" is applicable to input video signal. 3. "FSC LOCK" is applicable to color factor.
Your reply will be helpful for me.
Thank you for your kindness. You've been very helpful.
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