Detail about LCD vsync interrupt

[areslee]

Hi,

The document about LCD vsync interrupt is very simple in A13 User Manual v1.2:

29.3.2.  TCON_GINT0_REG

TCON0_Vb_Int_Flag
Asserted during vertical no-display period every frame.
Write 0 to clear it.

So,

1. Does this interrupt can be generated in RGB mode?
2. Which clock cycle in no-display period this interrupt will be generated?
3. When this interrupt ocurred, does the LCD controller stop automatically or continue running?

Anyone has any experience, please shed some light on me.

Thanks!