Chapter 3 – DFI BT9A3 User Manual
Page 17
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Chapter 3 Hardware Installation
17
Chapter 3
Signal
Pin#
Pin Type
Pwr Rail /Tolerance
BT9A3
Carrier Board
Description
USB0+
A46
USB0-
A45
USB1+
B46
USB1-
B45
USB2+
A43
USB2-
A42
USB3+
B43
USB3-
B42
USB4+
A40
USB4-
A39
USB5+
B40
USB5-
B39
USB6+
A37
USB6-
A36
USB7+
B37
USB7-
B36
USB_0_1_OC#
B44
I CMOS
3.3V Suspend/3.3V
PU 10k to 3.3A
Connect to Overcurrent of USB Power Switch
USB over-current sense, USB channels 0 and 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. Do not
pull this line high on the Carrier Board.
USB_2_3_OC#
A44
I CMOS
3.3V Suspend/3.3V
PU 10k to 3.3A
Connect to Overcurrent of USB Power Switch
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_4_5_OC#
B38
I CMOS
3.3V Suspend/3.3V
PU 10k to 3.3A
Connect to Overcurrent of USB Power Switch
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_6_7_OC#
A38
I CMOS
3.3V Suspend/3.3V
PU 10k to 3.3A
Connect to Overcurrent of USB Power Switch
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.
USB_SSTX0+
D4
NA
NA
USB_SSTX0-
D3
NA
NA
USB_SSRX0+
C4
NA
NA
USB_SSRX0-
C3
NA
NA
USB_SSTX1+
D7
NA
NA
USB_SSTX1-
D6
NA
NA
USB_SSRX1+
C7
NA
NA
USB_SSRX1-
C6
NA
NA
USB_HOST_PRSNT
B96
I CMOS
3.3V Suspend/3.3V
NA
NA
Module USB client may detect the presence of a USB host. A high value(NA for BT9A3)
indicates that a host is present.
ȟ
ȟ
ȟ
ȟ
USB differential pairs 5
USB differential pairs 3
I/O USB
3.3V Suspend/3.3V
USB differential pairs 2
I/O USB
3.3V Suspend/3.3V
USB differential pairs 1
USB Signals Descriptions
I/O USB
3.3V Suspend/3.3V
USB differential pairs 0
I/O USB
3.3V Suspend/3.3V
USB differential pairs 4
I/O USB
3.3V Suspend/3.3V
AC coupled off Modul
Additional receive signal differential pairs for the SuperSpeed USB data path.(NA for BT9A3)
O PCIE
AC coupled on Module
Additional transmit signal differential pairs for the SuperSpeed USB data path.(NA for BT9A3)
Connect 90ಳ @100MHz Common Choke in series
and ESD suppressors to GND to USB connector
I/O USB
3.3V Suspend/3.3V
USB differential pairs 7
I/O USB
3.3V Suspend/3.3V
USB differential pairs 6
I/O USB
3.3V Suspend/3.3V
O PCIE
AC coupled on Module
Additional transmit signal differential pairs for the SuperSpeed USB data path.(NA for BT9A3)
I PCIE
AC coupled off Modul
Additional receive signal differential pairs for the SuperSpeed USB data path.(NA for BT9A3)
I PCIE
Connect 90ಳ @100MHz Common Choke in series
and ESD suppressors to GND to USB connector
Connect 90ಳ @100MHz Common Choke in series
and ESD suppressors to GND to USB connector
Connect 90ಳ @100MHz Common Choke in series
and ESD suppressors to GND to USB connector
Connect 90ಳ @100MHz Common Choke in series
and ESD suppressors to GND to USB connector
Connect 90ಳ @100MHz Common Choke in series
and ESD suppressors to GND to USB connector
Connect 90ಳ @100MHz Common Choke in series
and ESD suppressors to GND to USB connector
Connect 90ಳ @100MHz Common Choke in series
and ESD suppressors to GND to USB connector