eDP*-to-DisplayPort* Cable
 

A specially designed eDP-to-DisplayPort cable is needed (see Figure 7)

because of the physical incompatibility of the eDP Tx and DisplayPort Rx

connectors. Since the eDP and DisplayPort standards are very similar, only a

passive cable is needed, no level shifting.ACES 88441,

The DisplayPort connector has 20 pins, which include four differential lanes of

the main link, a differential auxiliary channel (AUX) for slow speed control,

Hot-Plug Detect signal (HPD), ground pins, CONFIG control pins, and two

power pins. The eDP connector has those and additional optional pins, like
I-PEX cable brightness control, backlight and ambient light sensing. The eDP standard

allows various connectors with 44/40/30/20 pins. However, this paper

demonstrates only the 44-pin connector, since the others follow similar 20525-030E

principles. Another reason for showing the 44-pin connector is LCEDI cable that it used on

Intel’s Customer Reference Boards (CRB).