Kontron COMe Starterkit Eval T2 Instrukcja Użytkownika Pobierz pdf (Strona 67)

COM Express Interfaces

The MXM3 Module shown in this example supports two DisplayPort channels. They are

designated DP1 and DP3 on the schematic. The DP1 reference schematic has Dual Mode

support which switches the AUX channel from a differential pair for Display Port to an I2C

compatible interface for DVI/HDMI. FETs are provided to switch in pull-up resistors required for

the I2C interface as well as removal of the blocking capacitors. The DP1 schematic should be

replicated for DP3 as required.

The reference design does not support the discrete panel and backlight control signals found on

the MXM connector pins 23 (PNL_PWR_EN), 25 (PNL_BL_PWM), and 27 (PNL_BL_PWM).

The design relies on panel support for these interfaces via the AUX channel.

PICMG

COM Express

Carrier Board Design Guide Rev. 2.0 / December 6, 2013

67/218

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 217 218

Brak uwag

Kontron COMe Starterkit Eval T2 Instrukcja Użytkownika Strona 67