4.2.6 USB
The SAM V71 Xplained Ultra has a Micro-USB connector for use with the SAM V71 USB module labeled as TARGET USB on the kit. In USB host mode VBUS voltage is provided by the kit and has to be enabled by setting the "VBUS Host Enable" pin low.
| Pin on SAM V71 | USB function |
|---|---|
| PC16 | VBUS Host Enable (Active low) |
| HSDM | USB D- |
| HSDP | USB D+ |
There is a 1x3, 100mil pin-header marked VBUS on the kit. PC09 on the SAM V71 can be connected to either LED1 or to the target USB VBUS DETECT signal by placing a jumper between pin 1 and 2, or pin 2 and 3 respectively on this pin-header.
USB VBUS DETECT is the target USB voltage divided by 1.64, when connected to the PC09 pin the signal can be used to detect power on the target USB connector.
| Pin | Function |
|---|---|
| 1 | LED1 |
| 2 | PC09 |
| 3 | USB VBUS DETECT |