Seco COM-Express CCOMe-C96 User Manual page 53

SPI_CLK: Clock from COM Express Module to Carrier SPI device
SPI_MOSI: Data out from COM Express Module to Carrier SPI device
BIOS disable signals
According to COM Express Specifications rev. 3.0, there are two jumpers on board JP7 and JP8, which allow configuring the BIOS_DIS[0..1]# signals according
to the table below.
JP8 position JP7 position
Not inserted Not inserted
Not inserted Inserted
Inserted Not inserted
Inserted Inserted
VGA Connector
VGA DB15 connector - CN30
Pin Signal Pin Signal
1 RED 2 GREEN
3 BLUE 4 N.C.
5 GND 6 GND
7 GND 8 GND
9 +5V_VGA 10 GND
11 N.C. 12 CRT_I2C_DAT
13 HSYNC 14 VSYNC
15 CRT_I2C_CK
+5V_VGA: VGA power, directly obtained by +5V_RUN through a resettable fuse and a Schottky diode in series.
All of these signals are derived directly from COM Express module's VGA_xxxx corresponding signals, by placing ESD protections, EMI filters and voltage level
shifters for DDC lines.
CCOMe-C96
CCOMe-C96 - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. Copyright © 2021 SECO S.p.A.
Chipset SPI CS1# Chipset SPI CS0#
Destination Destination
Module Module
Module Module
Module Carrier
Carrier Module
For use of standard VGA monitors, all RGB signals coming from COM Express CPU
module are carried out on a standard DB15 HD Female connector CN30,type NELTRON
p/n 5511-15F-HR-02 or equivalent, raised (so that can be placed over one of the DP++
connectors). Pinout follows VGA VESA DDC2 standard; related pinout is reported in the table on the left.
RED: VGA Red Signal video output.
GREEN: VGA Green Signal video output.
BLUE: VGA Blue Signal video output.
HSYNC: VGA Horizontal Synchronization output signal.
VSYNC: VGA Vertical Synchronization output signal.
CRT_I2C_CLK: VGA's DDC Clock line for displays detection, +5V_VGA
CRT_I2C_DATA: VGA's DDC Clock line for displays detection, +5V_VGA
resistor
Carrier SPI_CS# SPI Descriptor
High Module
High Module
SPI0 Carrier
SPI1 Module
BIOS Entry
SPI0/SPI1
Carrier FWH
SPI0/SPI1
SPI0/SPI1
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