A20T basic LCD model Marlin setting method inquiry

[austech]

The motherboard was broken while using the A20T.

I installed another board (rumba32) and want to use it by connecting the A20T LCD.

How can I use A20T equipped LCD on other motherboards?

I am also curious about the pinmap.

I temporarily purchased and installed "REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER".

I would like to mount the AT20's primary LCD on the current board.

Please give a good answer.

Thank you.