SN65DPHY440SS: Can SN65DPHY440SS work at 2 lanes mode？

David

Is this a DSI or a CSI application? Both DSI and CSI can support 2 lanes mode. But for DSI, one of the four lanes is used for back channel communications between GPU and DSI panel. DPHY440’s lane 0 is the only lane that supports the back channel. For this reason, DPHY440 lane 0 must always be connected to lane 0 of GPU and panel.

Thanks

David

David

Please see below for the CSI 2 lane example. There is no pin or register to configure DPHY440 for the 2 lane mode. You just need to tie unused input to ground and unused output floating.

Thanks
David