WIN Enterprises MB-73440, User Manual, Page: 42 / 82

Copyright © WIN Enterprises, Inc. MB-73440
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Signal Pin Description I/O PU/PD Comment
1. 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.
high on carrier
USB_2_3_OC# A44 USB over-current sense, USB ports 2 and
3. 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. .
I 3.3VSB PU 10k 3.3VSB Do not pull
high on carrier
USB_4_5_OC# B38 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.
I 3.3VSB PU 10k 3.3VSB Do not pull
high on carrier
USB_6_7_OC# A38 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.
I 3.3VSB PU 10k 3.3VSB Do not pull
high on carrier
4.4.11. SPI (BIOS only)
Signal Pin Description I/O PU/PD Comment
SPI_CS# B97 Chip select for Carrier Board SPI BIOS
Flash.
O 3.3VSB PU 10K
3.3VSB
SPI_MISO A92 Data in to module from carrier board SPI
BIOS flash.
I 3.3VSB
SPI_MOSI A95 Data out from module to carrier board SPI
BIOS flash.
O 3.3VSB
SPI_CLK A94 Clock from module to carrier board SPI
BIOS flash.
O 3.3VSB
SPI_POWER A91 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.
O P 3.3VSB