ADLINK Technology Express-KL User Manual page 24

Signal Pin #
USB_4_5_OC# B38
USB_6_7_OC# A38
3.3.11. USB Root Segmentation
All USB from XHCI controller
3.3.12. SPI (BIOS only)
Signal Pin #
SPI_CS# B97
SPI_MISO A92
SPI_MOSI A95
SPI_CLK A94
SPI_POWER A91
BIOS_DIS0# A34
BIOS_DIS1# B88
18
Description
may drive this line low. .
USB over-current sense, USB ports 4 and
5. A pull-up for this line shall be present on
the module. An open drain driver from a
USB current monitor on the carrier board
may drive this line low.
USB over-current sense, USB ports 6 and
7. A pull-up for this line shall be present on
the module. An open drain driver from a
USB current monitor on the carrier board
may drive this line low.
Description
Chip select for Carrier Board SPI BIOS Flash.
Data in to module from carrier board SPI BIOS
flash.
Data out from module to carrier board SPI
BIOS flash.
Clock from module to carrier board SPI BIOS
flash.
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
Selection strap to determine the BIOS boot
device.
Selection strap to determine the BIOS boot
device.
I/O PU/PD
PU 10k
I 3.3VSB
3.3VSB
I 3.3VSB PU 10k
3.3VSB
I/O PU/PD
O 3.3VSB PU 10K
3.3VSB
I 3.3VSB
O 3.3VSB
O 3.3VSB
O P
3.3VSB
PU 10K
I
3.3VSB
I PU 10K
3.3VSB
Pinouts and Signal Descriptions
Comment
Do not pull high on
carrier
Do not pull high on
carrier
Comment
Carrier shall pull to
GND or leave not-
connected.
Carrier shall pull to
GND or leave not-
connected