QorIQ LS1012A USB3.0 Interface

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QorIQ LS1012A USB3.0 Interface

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davidtu
Contributor I

Does LS1012A USB3.0 provide host/device features? I checked the block diagram it says USB2.0/3.0 +phy does it mean PHY only? Do I need a USB3.0 HUB IC  to connect to it?

Regards 

David Tu

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r8070z
NXP Employee
NXP Employee


Have a great day,

The LS1012 USB 3.0 module includes USB controller and PHY. It has the following features:

  • Complies with USB specification rev 3.0 (xHCI compatible)
  • Supports operation as a standalone USB host controller
  • USB dual-role operation and can be configured as host or device
  • Super-speed (5 Gbit/s), high-speed (480 Mbit/s), full-speed (12 Mbit/s), and low-

speed (1.5 Mbit/s) operations.

  • Supports operation as a standalone single port USB
  • Supports four programmable, bidirectional USB endpoints
  • OTG (on-the-go) 2.0 compliant, which includes both device and host capability. Super-speed operation is not supported when OTG is enabled.
  • Supports USB PHY power gating

 

The LS1012 USB 3.0 External Signals are:

USB_D_P IO    USB PHY Data Plus

USB_D_M IO    USB PHY Data Minus

USB_VBUS IO    USB PHY VBUS

USB_ID IO    USB PHY ID Detect

USB_TX_P O    USB PHY 3.0 Transmit Data (positive)

USB_TX_M O    USB PHY 3.0 Transmit Data (negative)

USB_RX_P I    USB PHY 3.0 Receive Data (positive

USB_RX_M I    USB PHY 3.0 Receive Data (negative)

USB_RESREF IO    USB PHY Impedance Calibration

USB_DRVVBUS O    VBus power enable.

USB_PWRFAULT I    Indicates that a Vbus fault has occurred.

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davidtu
Contributor I

Hello,

So If I have USB3.0 device, it should be not a problem to connect direct to this port without using HUB if this CPU can work as Host and configure as HOST. isn't?

Regards,

David Tu

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r8070z
NXP Employee
NXP Employee

Yes, it should be not a problem to connect USB device directly to this port without using an external USB hub.

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