ORCA SBC/Interfaces and Connectors/USB ports

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History
Version Issue Date Notes
1.0.0 Dec 2021 First release


USB Ports interface[edit | edit source]

Description[edit | edit source]

The Evaluation Kit provides two USB3.0 ports at the connectors J3 and J4.

J3 and J4 are USB Type-C connectors. J3 is also used to supply the system, see Power Supply section.

Both ports can provide 5V output up to 2.2A. J3 port can also be configured to provide up to 3.3A


USB Ports connector

Signals[edit | edit source]

The following table describes the interfaces signals:

J3[edit | edit source]

Pin# SOM Pin# Pin name Pin function Pin Notes
A4, A9, B4, B9 - VBUS +5V
A6, B6 J15.193 DP1 USB_DP
A7, B7 J15.195 DN1 USB_DN
A2 J15.199 SSTXP1 USB_TX_P
A3 J15.201 SSTXN1 USB_TX_N
B11 J15.203 SSRXP1 USB_RX_P
B10 J15.205 SSRXN1 USB_RX_N
B2 J15.199 SSTXP2 USB_TX_P
B3 J15.201 SSTXN2 USB_TX_N
A11 J15.203 SSRXP2 USB_RX_P
A10 J15.205 SSRXN2 USB_RX_N
A5 - CC1 Orientation Plug Used for PD handshake
B5 - CC2 Orientation Plug Used for PD handshake
A8 - SBU1 Side Band Use
B8 - SBU2 Side Band Use
A1, A12, B1, B12 - DGND Ground

J4[edit | edit source]

Pin# SOM Pin# Pin name Pin function
A4, A9, B4, B9 - VBUS +5V
A6, B6 J15.173 DP1 USB_DP
A7, B7 J15.175 DN1 USB_DN
A2 J15.179 SSTXP1 USB_TX_P
A3 J15.181 SSTXN1 USB_TX_N
B11 J15.183 SSRXP1 USB_RX_P
B10 J15.185 SSRXN1 USB_RX_N
B2 J15.179 SSTXP2 USB_TX_P
B3 J15.181 SSTXN2 USB_TX_N
A11 J15.183 SSRXP2 USB_RX_P
A10 J15.185 SSRXN2 USB_RX_N
A5 - CC1 Orientation Plug
B5 - CC2 Orientation Plug
A8 - SBU1 Side Band Use
B8 - SBU2 Side Band Use
A1, A12, B1, B12 - DGND Ground

Device usage[edit | edit source]

The USB ports can be used under Linux for connecting USB devices: the related device driver has to be integrated into the Linux kernel.

To connect USB devices to J3 an USB-C HUB has to be used for power the Evaluation Kit while transferring USB data. Please check that the chosen HUB is qualified for the Power Delivery protocol.