The BT.656 mode of IPU problem

[wwfdzh2012]

Hi,everyone！

  I still having a problem with The BT.656 mode of I.MX6Q's IPU,.We known, BT.656 mode have a timing reference signal consists of a four word sequence(0xff,0x00,0x00,xy). the timeing reference signal is frame start. frame end, line start,line end.But i found that it is only have three states on the 'xy'  of the  progressive mode according to  the IMX6Q reference manual.In the progressive mode, it can only support: start of active line , end of active line and start of blanking line.It can  only corresponding to my sensor Line Start signal,Line End signal and Frame Start signal.So where is Frame End signal?

Update：

   I had study the BT.656 protocol，and the problem has solved. Thank you.

[wwfdzh2012]

Nobody？

[joanxie]

for bt656, you should refer to the protocol of bt656, which describe very detailed about SAV, EAV.