Usb Signals Descriptions - DFI GH9A3 User Manual

DDI1_CTRLDA- B99 I/O PCIE AC coupled on Module PU 100K to 3.3V
TA/DP0_AUX-
I/O OD 3.3V / 3.3V
CMOS
DDI1_HPD/ B89 I CMOS 3.3V / 3.3V
DP0_HPD
DDI1_DDC_ B95 I CMOS 3.3V / 3.3V
AUX_SEL

USB Signals Descriptions

Signal Pin# Pin Type Pwr Rail /Tolerance
USB0+ A46 I/O USB 3.3V Suspend/3.3V
USB0- A45
USB1+ B46 I/O USB 3.3V Suspend/3.3V
USB1- B45
USB2+ A43 I/O USB 3.3V Suspend/3.3V
USB2- A42
USB3+ B43 I/O USB 3.3V Suspend/3.3V
USB3- B42
USB4+ A40 I/O USB 3.3V Suspend/3.3V
USB4- A39
USB5+ B40 I/O USB 3.3V Suspend/3.3V
USB5- B39
USB6+ A37 I/O USB 3.3V Suspend/3.3V
USB6- A36
USB7+ B37 I/O USB 3.3V Suspend/3.3V
USB7- B36
USB_0_1_OC# B44 I CMOS 3.3V Suspend/3.3V
User's Manual | GH9A3
Connect to DP AUX-
(S/W IC between
Rpu/PCH)
PU 2.2K to 3.3V/PU Connect to HDMI/DVI I2C CTRLDATA
100K to 3.3V
(S/W IC between
2.2K/100K resistor)
PD 100K to GND PD 1M and Connect to device Hot Plug Detect
PD 1M to GND PU 100K to 3.3V for DDC(HDMI/DVI)
WL9A3 Carrier Board
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
Connect 90Ω @100MHz Common Choke in series and
ESD suppressors to GND to USB connector
PU 10k to 3.3VSB Connect to Overcurrent of USB Power Switch
HARDWARE INSTALLATION
DP AUX- function if DDI1_DDC_AUX_SEL is no connect
HDMI/DVI I2C CTRLDATA if DDI1_DDC_AUX_SEL is pulled high
DDI Hot-Plug Detect
Selects the function of DDI1_CTRLCLK_AUX+ and DDI1_CTRL-
DATA_AUX-. This pin shall have a 1M pull-down to logic ground on
the Module. If this input is floating the AUX pair is used for the DP
AUX+/- signals. If pulled-high the AUX pair contains the CRTLCLK
and CTRLDATA signals
************************************************************
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
Description
USB differential pairs 0
USB differential pairs 1
USB differential pairs 2
USB differential pairs 3
USB differential pairs 4
USB differential pairs 5
USB differential pairs 6
USB differential pairs 7
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.
Chapter 2
17