Datasheet

688
32072H–AVR32–10/2012
AT32UC3A3
• SPDCONF: Speed Configuration
This field contains the peripheral speed.
• RMWKUP: Remote Wake-Up
Writing a one to this bit will send an upstream resume to the host for a remote wake-up.
Writing a zero to this bit has no effect.
This bit is cleared when the USBB receive a USB reset or once the upstream resume has been sent.
• DETACH: Detach
Writing a one to this bit will physically detach the device (disconnect internal pull-up resistor from D+ and D-).
Writing a zero to this bit will reconnect the device.
• ADDEN: Address Enable
Writing a one to this bit will activate the UADD field (USB address).
Writing a zero to this bit has no effect.
This bit is cleared when a USB reset is received.
• UADD: USB Address
This field contains the device address.
This field is cleared when a USB reset is received.
SPDCONF Speed
00
Normal mode: the peripheral starts in full-speed mode and performs a high-speed reset to
switch to the high-speed mode if the host is high-speed capable.
0 1 reserved, do not use this configuration
1 0 reserved, do not use this configuration
1 1 Full-speed: the peripheral remains in full-speed mode whatever is the host speed capability.