It seems that BF542 has two EPPIs, but their pins overlap. Can they be used simultaneously to support 4:2:2 video in and video out?
Yes. On BF542, EPPI1 and EPPI2 can both operate simultaneously when they are both configured for 8-bit operation.
Some of the data pins of EPPI1 and EPPI2 overlap. Therefore, it is not possible to use all 16-bits of EPPI1 while using the 8-bit EPPI2.
However, when both EPPI1 and EPPI2 are configured for 8-bits, then they can both operate simultaneously.
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