Technical data

Controls, LEDs, and Connectors
COMX-CAR-610 COM Express Carrier Board Installation and Use (6806800K26D)
47
3.5.5 SPI Flash
You must set the jumper defined below if you want to configure how the SPI flash is accessed.
Use Jumper P15 to enable or disable the BIOS on the COM Express module
Table 3-34 P13, SPI Flash Header Pin Definition
Pin Signal
13.3V DUAL
2GND
3SPI_CS_N
4SF_SPI_CLK
5SF_SPI_SO
6SF_SPI_SI
7NC
8NC
Table 3-35 P12 and P14, Jumper Settings for SPI Flash SF100 header
P12 Jumper Setting Configuration
P12 (1-2) To PCH (Default)
P12 (2-3) To SF100 header
P14 Jumper Setting Configuration
P14 (1-2) Enable SPI flash chip U9 and disable U10 (Default)
P14 (2-3) Enable SPI flash chip U10 and disable U9
Table 3-36 P15 and P38, Jumper Configuration to Enable/Disable BIOS
P15 Jumper Setting Configuration
P15 (1-2) Enable BIOS on the module (Default)