Seco CCOMe-C30 User Manual page 58

All the signals necessary for working of the eDP to LVDS converter module can be found on connector CN2, which can be paired to CCOMe-C30 board using a
1:1 direct cable connection.
I2C female connector - CN4
Pin Signal Pin Signal
2 --- 1 +3.3V_A
4 GP_I2C_CLK 3 ---
6 GP_I2C_DAT 5 ---
8 GND 7 GND
10 --- 9 LVDS_RST#
12 --- 11 ---
14 --- 13 ---
16 --- 15 ---
The I2C bus available on connectors CN4/CN5 can be used in alternative to SM Bus interface available on connector CN2 to manage the eDP to LVDS bridge.
It is necessary to configure properly the module in order to use the General Purpose I2C bus (CN4/CN5) or SM Bus (CN2). The selection must be made using
module's dip switch SW1
SW1 Switch ON Position
1 SM Bus used
eDP-to-LVDS bridge acts as I2C
2
bus slave
CCOMe-C30
CCOMe-C30 - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: S.B. - Reviewed by F.B. Copyright © 2019 SECO S.p.A.
I2C male connector - CN5
Pin Signal Pin Signal
1 --- 2 +3.3V_A
3 GP_I2C_CLK 4 ---
5 GP_I2C_DAT 6 ---
7 GND 8 GND
9 --- 10 LVDS_RST#
11 --- 12 ---
13 --- 14 ---
15 --- 16 ---
OFF Position
GP_I2C used
eDP-to-LVDS bridge acts as I2C
bus master, can read from external
EEPROM
For the occurrences when the module is paired to different boards, or
when the SM_Bus is not working / connectable on connector CN2, then
the module offers also the possibility of connecting to another board's I2C
interface using a dedicated 16-pin connector. Such a connector is
available in two factory option, as a male 2x8 pin header p 2.54mm h=
6mm (CN5), or as a female 2x8 pin connector, p2.54mm, h=11.04mm
type NELTRON p/n 2214123-16G10-1B-32 (CN4) for piggyback
connection
GP_I2C_CLK: General Purpose I2C Clock line
GP_I2C_DAT: General Purpose I2C Data line
LVDS_RST#: General purpose Input signal. Can be used for LVDS
section's reset. 3.3V input signal with 100kΩ pull-up resistor, active low.
Setting of these signals can be made according to the table on the
left.
When MC30's jumper JP13 is placed, it is suggested to set both
SW1 switches in position ON. The COM express module plugged
on MC30 Carrier, however, must be able to support the eDP to LVDS
bridge through its SM Bus interface
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