Datasheet

572
AT32UC3A
• EPSIZE: Endpoint Size
Set to select the size of each endpoint bank:
Cleared by hardware upon receiving a USB reset (except for the endpoint 0).
• EPDIR: Endpoint Direction
Set to select the endpoint direction:
Cleared by hardware upon receiving a USB reset.
• AUTOSW: Automatic Switch
Set to automatically switch bank when it is ready.
Clear to disable the automatic bank switching.
Cleared by hardware upon receiving a USB reset.
• EPTYPE: Endpoint Type
Set to select the endpoint type:
Cleared by hardware upon receiving a USB reset.
EPSIZE Endpoint Size
0 0 0 8 bytes
0 0 1 16 bytes
0 1 0 32 bytes
0 1 1 64 bytes
1 0 0 128 bytes
1 0 1 256 bytes
1 1 0 512 bytes
1 1 1 1024 bytes
EPDIR Endpoint Direction
0 OUT
1 IN (not for control endpoints)
EPTYPE Endpoint Type
0 0 Control
0 1 Isochronous
1 0 Bulk
1 1 Interrupt
32058K
AVR32-01/12