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COM Express
™
PORTWELL PCOM-B700G User's Guide
Copyright © PORTWELL 2018 PCOM-B700G User's Guide
48
B88
BIOS_DIS1# /
ESPI_BBS
Selection straps to determine the
BIOS boot device.The Carrier
should only float these or pull them
low / Shared pin with ESPI_BBS
I
CMOS
NA
PU 10k
ohm to 3.3V
-
B89
NCSI_RX_ER
NC-SI Receive error
O
-
3.3V Suspend / 3.3V
-
-
B90
GND(FIXED)
GND(FIXED)
-
-
-
-
-
B91
NCSI_CLK_IN
NC-SI Clock reference for receive,
transmit, and control lnterface.
(PD 10K on Carrier when NC-SI is
not used on Carrier)
I
-
3.3V Suspend / 3.3V
-
-
B92
NCSI_RXD1
NC-SI Receive Data (from NC to
BMC).
O
-
3.3V Suspend / 3.3V
PU 5.1K to
1.05V
-
B93
NCSI_RXD0
NC-SI Receive Data (from NC to
BMC).
O
-
3.3V Suspend / 3.3V
PU 5.1K to
1.05V
-
B94
NCSI_CRS_DV
NC-SI Carrier Sense/Receive Data
Valid to MC, indicating that the
transmitted data from NC to BMC
is valid.
O
-
3.3V Suspend / 3.3V
PD 270
ohm
-
B95
NCSI_TXD1
NC-SI Transmit Data (from BMC to
NC).
(PD 10K on Carrier when NC-SI is
not used on Carrier)
I
-
3.3V Suspend / 3.3V
PU 10K to
1.05V
-
B96
NCSI_TXD0
NC-SI Transmit Data (from BMC to
NC).
(PD 10K on Carrier when NC-SI is
not used on Carrier)
I
-
3.3V Suspend / 3.3V
PU 10K to
1.05V
-