Our customer has question below.
About the configurable interval of DMA_ACT.
Is it correct my understanding of the below comments.
Vybrid RM description .
57.5.10 DMA and De-interlace
After doing some necessary register configuration, such as coefficients, INVSZ and
DMA_ADDR, user can activate DMA by setting the DMA_ACT of the status and
configuration register. But note that DMA_ACT can be configured only during vertical
blanking since the VIU3 block will not transfer a fragment of video field to memory. If it
is configured during field active time, DMA transfer cannot be started and an error
interrupt will be asserted.
Specifically, it can be set " 1 " to DMA_ACT , It is only within the interrupt handler by DMA_END_IRQ( Transfer the end of the video period) , and in the interrupt handler by VSYNC_IRQ .