Usb - Nvidia Jetson TX2 Manual

Table 16. USB 3.0, PCIe & SATA Lane Mapping Configurations compatible with Jetson TX2 & Jetson TX2i only.
Module Pin Names
Tegra Lanes
Avail. Outputs from the
module
Configs

USB 3.0

PCIe
0 1x1 + 1x4
1
1 1x4
2 (CB
Default)
3 2 3x1
4 3 2x1
1 2x1 + 1x2
5
2 1x1 + 1x2
6
Default Usage on CB (carrier board)
Note:
PCIe interface #2 can be brought to the PEX1 pins, or USB 3.0 port #1 to the USB_SS0 pins on Jetson TX2/TX2i depending
6.
on the setting of a multiplexor on the module. The selection is controlled by QSPI_IO2 configured as a GPIO.
Jetson TX2/TX2i has been designed to enable use cases listed in the table above. However, released Software may not
7.
support all configurations, nor has every configuration been validated.
o
Configuration #1 & 2 represent the supported and validated Jetson TX2/TX2i Developer Kit configurations. These
configurations are supported by the released Software, and the PCIe, USB 3.0, and SATA interfaces have been
verified on the carrier board.
See notes under the Backward Compatible mapping table related to color coding, PCIe x2/x1 support & lane reversal.
8.
5.1 USB
Figure 15 USB 2.0 OTG + USB 3.0 Host Connection Example
Jetson TX2/TX2i
Tegra
UARTCAM
UART5_CTS_N
USB_VBUS_EN0
USB_VBUS_EN1
USB 2.0
USB0_DP
USB0_DN
USB1_DP
USB1_DN
USB2_DP
USB2_DN
USB 3.0
& PEX
PEX_TX0_P
PEX_TX0_N
PEX_RX0_P
PEX_RX0_N
Note: Common mode filters on USB[2:0]_DP/DN (USB 2.0 interfaces) are optional. Place only as needed if EMI is an issue.
1.
Common mode filters on USB3_TX/RX_P/N signals are not recommended. If common mode devices are placed, they
must be selected to minimize the impact to signal quality, which must meet the USB spec. signal requirements. See the
Common Mode Choke requirements in the USB 3.0 Interface Signal Routing Requirements table .
If USB 3.0 is routed to a connector, only AC caps on the module TX lines are required. If routed directly to a peripheral,
2.
AC caps are needed for both the module TX lines (connected to device RX) & Device TX lines (connected to the module
RX).
JETSON TX2/TX2i OEM PRODUCT | DESIGN GUIDE | 20180618
PEX1 PEX_RFU
Lane 0 Lane 1
SATA
1 PCIe#2_0 PCIe#0_3
1 PCIe#0_3
1 PCIe#2_0 USB_SS#1
1 USB_SS#1
1 PCIe#2_0 USB_SS#1
1 USB_SS#1
Unused
To PMIC G PIO0
USB0_OTG_ID
A36
(on Module)
USB0_VBUS_DET
Gate/LS
B3 7
VDD_3V3_SY S
USB2_EN_OC#
A19
USB0_EN_OC#
A17
USB1_EN_OC#
A18
USB0_D+
B3 9
USB0_D–
B4 0
USB1_D+
A38
USB1_D–
A39
USB2_D+
B4 2
USB2_D–
B4 3
USB_SS0_TX+
C43
Default
USB_SS0_TX–
C44
USB_SS0_RX+
F43
USB_SS0_RX–
F44
Mux
PEX1_TX+
E41
PEX1_TX–
E42
PEX1_RX+
H41
PEX1_RX–
H42
PEX2 USB_SS1
Lane 3 Lane 2
PCIe#0_2 PCIe#0_1
PCIe#0_2 PCIe#0_1
PCIe#1_0 USB_SS#2
PCIe#1_0 USB_SS#2
PCIe#1_0 PCIe#0_1
PCIe#1_0 PCIe#0_1
X4 PCIe Connector
VDD_5V0_IO_SYS
Load Switch
IN
USB_VBUS_EN0
EN
100Ω
VDD_5V0_IO_SYS
Load Switch
IN
USB_VBUS_EN1
EN
100Ω
To M.2 Module
on Carrier Board
0.1uF
0.1uF
PCIe#2 (x1)
NVIDIA Jetson TX2/TX2i OEM Product Design Guide
PEX0 USB_SS0
(see note 1)
Lane 4
PCIe#0_0
PCIe#0_0 USB_SS#0
PCIe#0_0
PCIe#0_0 USB_SS#0
PCIe#0_0
PCIe#0_0 USB_SS#0
USB 3 Type A
OUT
OC
Common
Mode Choke
OUT
ESD
OC
Common
Mode Choke
Common
Mode Choke
Common
Mode Choke
ESD
SATA
Lane 5
SATA
SATA
SATA
SATA
SATA
SATA
SATA
USB 2.0
VBUS
Micro AB
D+
D–
ID
USB 3.0
VBUS
Type A
D+
D–
TX+
TX–
RX+
RX–
25