Lvds Signals Descriptions - DFI GH9A3 User Manual

Com express mini module
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USB_2_3_OC# A44
I CMOS
3.3V Suspend/3.3V
USB_4_5_OC# B38
I CMOS
3.3V Suspend/3.3V
USB_6_7_OC# A38
I CMOS
3.3V Suspend/3.3V
USB_SSTX0+
B23
O PCIE
AC coupled on Module AC Coupling capaci-
USB_SSTX0-
B22
USB_SSRX0+
A23
I PCIE
AC coupled off Modul
USB_SSRX0-
A22
USB_SSTX1+
B26
O PCIE
AC coupled on Module AC Coupling capaci-
USB_SSTX1-
B25
USB_SSRX1+
A26
I PCIE
AC coupled off Modul
USB_SSRX1-
A25
USB0_HOST_
B48
I CMOS
3.3V Suspend/3.3V
PRSNT
USB7_HOST_
B96
I CMOS
3.3V Suspend/3.3V
PRSNT

LVDS Signals Descriptions

Signal
Pin#
Pin Type
Pwr Rail /Tolerance
LVDS_A0+
A71
O LVDS
LVDS
LVDS_A0-
A72
LVDS_A1+
A73
O LVDS
LVDS
LVDS_A1-
A74
LVDS_A2+
A75
O LVDS
LVDS
LVDS_A2-
A76
LVDS_A3+
A78
O LVDS
LVDS
LVDS_A3-
A79
LVDS_A_CK+
A81
O LVDS
LVDS
LVDS_A_CK-
A82
LVDS_VDD_EN A77
O CMOS
3.3V / 3.3V
User's Manual | GH9A3
PU 10k to 3.3VSB
Connect to Overcurrent of USB Power Switch
PU 10k to 3.3VSB
Connect to Overcurrent of USB Power Switch
PU 10k to 3.3VSB
Connect to Overcurrent of USB Power Switch
Connect 90Ω @100MHz Common Choke in series and
tor
ESD suppressors to GND to USB connector
AC Coupling capaci-
tor
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
Connect 90Ω @100MHz Common Choke in series and
tor
ESD suppressors to GND to USB connector
AC Coupling capaci-
tor
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
PD 20k to GND,
Reserved PU 10K
to 3.3V
PD 20k to GND,
Reserved PU 10K
to 3.3V
WL9A3
Carrier Board
Connect to LVDS connector
Connect to LVDS connector
Connect to LVDS connector
Connect to LVDS connector
Connect to LVDS connector
Connect to enable control of LVDS panel power circuit LVDS panel power enable
HARDWARE INSTALLATION
USB over-current sense, USB channels 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. Do
not pull this line high on the Carrier Board.
USB over-current sense, USB channels 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. Do
not pull this line high on the Carrier Board.
USB over-current sense, USB channels 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. Do
not pull this line high on the Carrier Board.
Additional transmit signal differential pairs for the SuperSpeed USB
data path.
Additional receive signal differential pairs for the SuperSpeed USB
data path.
Additional transmit signal differential pairs for the SuperSpeed USB
data path.
Additional receive signal differential pairs for the SuperSpeed USB
data path.
Module USB client may detect the presence of a USB host. A high
value indicates that a host is present.
Module USB client may detect the presence of a USB host. A high
value indicates that a host is present.
Description
LVDS Channel A differential pairs
LVDS Channel A differential clock
Chapter 2
18

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