ONDA Plus SOM/ONDA Plus Hardware/Peripherals/USB
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Contents
Peripheral USB[edit | edit source]
ONDA Plus provides one USB 2.0 (Full Speed, up to 480 Mbps) port with on-board USB3317 PHY Hi-Speed and support to the On-The-Go (OTG) specifications. The transceiver is connected to the USB1 controller (MIO bank 502, pins PS_MIO[52:63]). The following table describes the interface signals:
| Pin name | Conn. pin | Function | Notes |
|---|---|---|---|
| USB_D_P | J1.B38 | D+ pin of the USB cable | - |
| USB_D_N | J1.B39 | D- pin of the USB cable | - |
| USB_RST | J1.B33 | USB PHY reset signal | - |
| USB_VBUS | J1.B34 | VBUS pin of the USB cable | - |
| USB_CPEN | J1.B35 | External 5 volt supply enable | This pin is used to enable the external VBUS power supply |
| USB_ID | J1.B36 | ID pin of the USB cable | For non-OTG applications this pin can be floated. For an A-device ID is grounded. For a B-device ID is floated. |
These signals are referenced to 1V8 (see dedicated section in the hardware manual).
