Congatec conga-HPC/uATX-Server User Manual page 45

Pin Signals
9 +V3.3S
11 PLTRST#
13 +V3.3A
15 GP_SPI_CS2#
Connector Type
CN1: 2.54 mm, 2x8-pin female connector
4.14 SPI Flash Socket
The conga-HPC/uATX-Server provides a 16-pin SOIC16 socket (U113) for an SPI flash. Boot select pins BSEL0 is routed to DIP switch SW7 while
boot select pins BSEL1 and BSEL2 are routed to DIP switch SW8.
With conga-HPC/uATX-Server, you can boot the COM-HPC module from either the module's onboard BIOS or from an external BIOS. The
option to boot from an external BIOS is useful for evaluating a customized BIOS.
Use SW7 and SW8 to select the flash boot device. The table below shows the available configurations.
Table 44 BIOS Select Configurations
DIP Switch SW8
BSEL [2:0] SW8.1 (BSEL2)
111 OFF
110 OFF
101 OFF
011 ON
010 ON
001 OFF
Note
"OFF" = Logic 1; "ON" = Logic 0
Connector Type
U113: SPI flash in 16-pin SOIC package
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Pin Signals
10 GP_SPI_MOSI
12 GP_SPI_CS1#
14 GP_SPI_ALERT#
16 GP_SPI_CS3#
DIP Switch SW7
SW8.2 (BSEL1) SW 7 (BSEL0)
OFF OFF
OFF ON
ON OFF
OFF OFF
OFF ON
OFF ON
Description
Boot from on-module firmware (default)
Boot from carrier board SPI flash
CSME/DT on chipset, SPI0 device on module.
BIOS on SPI0 on module or on SPI1 on carrier.
CSME/DT on chipset, SPI0 device on module.
BIOS on SPI0 or SPI1 on module.
Not supported
Not supported
HATXm001
SW7
U113
SW8
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