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Signal
Pin#
SPI_POWER
A91
BIOS_DIS0#
A34
/
ESPI_SAFS
BIOS_DIS1#
B88
ESPI_EN#
B47
Note:
1. SOM-5992 is NC.
Description
Power supply for Carrier Board SPI – sourced from
Module – nominally 3.3V. The Module shall provide
a minimum of 100mA on SPI_POWER.
Carriers shall use less than 100mA of SPI_POWER.
SPI_POWER shall only be used to power SPI
devices on the Carrier.
Carrier Board:
Connect to SPI flash pin 8 VDD
N/C if not used
Selection strap to determine the BIOS boot device.
The Carrier should only float these or pull them low,
please refer to Table X: BIOS Selection Straps.
Carrier Board:
1 - N/C
0 - PD 1K to GND
Selection strap to determine the BIOS boot device.
The Carrier should only float these or pull them low,
please refer to Table X: BIOS Selection Straps.
Carrier Board:
1 - N/C
0 - PD 1K to GND
This signal is used by the Carrier to indicate the
operating mode of the LPC/eSPI bus. If left
unconnected on the carrier, LPC mode (default) is
selected. If pulled to GND on the carrier, eSPI mode
is selected. This signal is pulled to a logic high on the
module through a resistor. The Carrier
float this line or pull it low.
please refer to Table33: BIOS Selection Straps.
Carrier Board:
1 - N/C
0 - PD 1K to GND
should
only
９３
I/O
Note
O
3.3V
Suspend
or 3.3V S0
1.8V
Suspend
or 1.8V S0
I CMOS
I CMOS
I
1
CMOS
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