Spi Flash Socket; Table 47 Bios Select Configurations - Congatec conga-HPC/EVAL-Server User Manual

4.16

SPI Flash Socket

With conga-HPC/EVAL-Server, you can boot the COM-HPC
option to boot from an external BIOS is useful for evaluating a customized BIOS.
The conga-HPC/EVAL-Server provides a 16-pin SOIC16 socket (X40) for an SPI flash. Boot select pins BSEL0 and BSEL1 are routed to DIP switch
SW3 while boot select pin BSEL2 is routed to DIP switch SW4.
Use DIP switch SW3 and SW4 to select the flash boot device. The table below shows the available configurations.
Table 47 BIOS Select Configurations
DIP Switch SW4 DIP Switch SW3 Description
BSEL SW 1 SW2
[2:0] (BSEL2)
111 OFF -
110 OFF -
101 OFF -
011 ON -
010 ON -
001 OFF -
Note
"OFF" = Logic 1; "ON" = Logic 0
Connector Type
X40: SPI flash in 16-pin SOIC package
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SW 2 SW 1
(BSEL1) (BSEL0)
OFF OFF Boot from on-module firmware (default)
OFF ON Boot from carrier board SPI flash
ON OFF CSME/DT on chipset SPI0 device on module.
BIOS on SPI0 on module or on SPI1 on carrier
OFF OFF CSME/DT on chipset SPI0 device on module.
BIOS on SPI0 or SPI1 on module
OFF ON Not supported
OFF ON Not supported
module from either the module's onboard BIOS or from an external BIOS. The
®
HEVAm100
X40
SW4
SW3
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