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Chapter 3 Hardware Installation
20
Chapter 3
Signal
Pin#
Module Pin Type Pwr Rail /Tolerance
BT968
Carrier Board
Description
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DDI Signals Descriptions
I/O PCIE
AC coupled on Module
PD 100K to GND
(S/W IC between Rpu/PCH)
Connect to DP AUX+
DP AUX+ function if DDI2_DDC_AUX_SEL is no connect
I/O OD CMOS
3.3V / 3.3V
PU 2.2K to 3.3V, PD 100K to GND
(S/W IC between Rpu/Rpd
resistor)
Connect to HDMI/DVI I2C CTRLCLK
HDMI/DVI I2C CTRLCLK if DDI2_DDC_AUX_SEL is pulled high
I/O PCIE
AC coupled on Module
PU 100K to 3.3V
(S/W IC between Rpu/PCH)
Connect to DP AUX-
DP AUX- function if DDI2_DDC_AUX_SEL is no connect
I/O OD CMOS
3.3V / 3.3V
PU 2.2K to 3.3V/PU 100K to 3.3V
(S/W IC between 2.2K/100K
resistor)
Connect to HDMI/DVI I2C CTRLDATA
HDMI/DVI I2C CTRLDATA if DDI2_DDC_AUX_SEL is pulled high
DDI2_HPD
D44
I CMOS
3.3V / 3.3V
PD 100K
PD 1M and Connect to device Hot Plug Detect
DDI Hot-Plug Detect
DDI2_DDC_AUX_SEL
C34
I CMOS
3.3V / 3.3V
PD 1M to GND
PU 100K to 3.3V for DDC(HDMI/DVI)
Selects the function of DDI2_CTRL and DDI2_CTRLDATA_AUX-.
DDI[n]_DDC_AUX_SEL shall be pulled to 3.3V on the Carrier with a 100K Ohm
resistor to configure the DDI[n]_AUX pair as the DDC channel.
Carrier DDI[n]_DDC_AUX_SEL should be connected to pin 13 of the DisplayPort
DDI
C39
NA
NA (No support)
NA (No support)
DDI3_PAIR0-
C40
NA
NA (No support)
NA (No support)
DDI
C42
NA
NA (No support)
NA (No support)
DDI3_PAIR1-
C43
NA
NA (No support)
NA (No support)
DDI
C4
NA
NA (No support)
NA (No support)
DDI3_PAIR2-
C47
NA
NA (No support)
NA (No support)
DDI
C49
NA
NA (No support)
NA (No support)
DDI3_PAIR3-
C50
NA
NA (No support)
NA (No support)
I/O PCIE
AC coupled on Module
NA
NA (No support)
NA (No support)
I/O OD CMOS
3.3V / 3.3V
NA
NA (No support)
NA (No support)
I/O PCIE
AC coupled on Module
NA
NA (No support)
NA (No support)
I/O OD CMOS
3.3V / 3.3V
NA
NA (No support)
NA (No support)
DDI3_HPD
C44
I CMOS
3.3V / 3.3V
NA (No support)
NA (No support)
DDI3_DDC_AUX_SEL
C38
I CMOS
3.3V / 3.3V
NA
NA (No support)
NA (No support)
Signal
Pin#
Module Pin Type Pwr Rail /Tolerance
BT968
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
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DDI3_CTRL
C36
DDI3_CTRLCLK_AUX-
C37
O PCIE
AC coupled off Module
O PCIE
AC coupled off Module
AC coupled off Module
O PCIE
AC coupled off Module
DDI2_CTRL
C32
DDI2_CTRLCLK_AUX-
C33
O PCIE
I/O USB
3.3V Suspend/3.3V
Connect 90
ಳ
@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 7, USB7 may be configured as a USB client or as a host, or both, at the
Module designer's discretion.(CR901-B default set as a host)
I/O USB
I/O USB
3.3V Suspend/3.3V
Connect 90
ಳ
@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 2
I/O USB
3.3V Suspend/3.3V
Connect 90
ಳ
@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 1
I/O USB
3.3V Suspend/3.3V
Connect 90
ಳ
@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 6
3.3V Suspend/3.3V
Connect 90
ಳ
@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 4
I/O USB
3.3V Suspend/3.3V
Connect 90
ಳ
@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 3
I/O USB
3.3V Suspend/3.3V
Connect 90
ಳ
@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 5
USB Signals Descriptions
I/O USB
3.3V Suspend/3.3V
Connect 90
ಳ
@100MHz Common Choke in series and ESD suppressors to GND to USB
connector
USB differential pairs 0
