Nvidia Jetson AGX Orin Series User Manual

USB 2.0 Tuning Guide
PRELIMINARY INFORMATION
Jetson AGX Orin Series Tuning and Compliance Guide DA-11040-001_v0.7 | 2
Table 1. Host Mode Test Registers
Description Register Name and Setting
Normal Operations T_XUSB_XHCI_OP_PORTPMSCHS_x[31:28] = 0000b
Test J T_XUSB_XHCI_OP_PORTPMSCHS_x[31:28] = 0001b
Test K T_XUSB_XHCI_OP_PORTPMSCHS_x[31:28] = 0010b
Test SE0 NAK T_XUSB_XHCI_OP_PORTPMSCHS_x[31:28] = 0011b
Test Packet T_XUSB_XHCI_OP_PORTPMSCHS_x[31:28] = 0100b
Force Enable T_XUSB_XHCI_OP_PORTPMSCHS_x[31:28] = 0101b
The xUSB USB 2.0 port register addresses are as follows:
 Port 0: 0x03610464: T_XUSB_XHCI_OP_PORTPMSCHS_4
 Port 1: 0x03610474: T_XUSB_XHCI_OP_PORTPMSCHS_5
 Port 2: 0x03610484: T_XUSB_XHCI_OP_PORTPMSCHS_6
 Port 3: 0x03610494: T_XUSB_XHCI_OP_PORTPMSCHS_7
Note: NVIDIA uses the equipment listed for this guide. Contact the vendor for compliance
Oscilloscope and software.
Test Mode Programming Sequence
The programming sequence for enabling USB 2.0 test mode is as follows:
1. Connect any USB device (see Note) to the port. This will prevent the controller from
entering power down mode.
Note: The phrase “any USB device” refers to any real device, such as HS uDISK or LS mouse.
2. Disable the auto suspend for the controllers. For example, the following command under
Linux Kernel.
Note: These operations require root privileges.
echo on > /sys/bus/usb/devices/usb1/power/control
3.
Set Port Power (PP) to Disabled state by setting T_XUSB_XHCI_OP_PORTSC[9] = 0
Port 0: 0x03610460: T_XUSB_XHCI_OP_PORTSC_4
Port 1: 0x03610470: T_XUSB_XHCI_OP_PORTSC_5
Port 2: 0x03610480: T_XUSB_XHCI_OP_PORTSC_6
Port 3: 0x03610490: T_XUSB_XHCI_OP_PORTSC_7

Nvidia Jetson AGX Orin Series Specifications

General

Brand	Nvidia
Model	Jetson AGX Orin Series
Category	Computer Hardware
Language	English