at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 438

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

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32059J–12/2010
AUTOSW: Automatic Switch
EPDIR: Endpoint Direction
EPSIZE: Endpoint Size
EPBK: Endpoint Banks
ALLOC: Endpoint Memory Allocate
0
0
0
0
1
1
1
1
This bit is cleared upon receiving a USB reset.
1: The automatic bank switching is enabled.
0: The automatic bank switching is disabled.
This bit is cleared upon receiving a USB reset.
1: The endpoint direction is IN (nor for control endpoints).
0: The endpoint direction is OUT.
This field shall be written to select the size of each endpoint bank:
This field is cleared upon receiving a USB reset (except for the endpoint 0).
This field shall be written to select the number of banks for the endpoint:
For control endpoints, a single-bank endpoint (0b00) shall be selected.
This field is cleared upon receiving a USB reset (except for the endpoint 0).
Writing a one to this bit will allocate the endpoint memory. The user should check the CFGOK bit to know whether the allocation
Writing a zero to this bit will free the endpoint memory.
This bit is cleared upon receiving a USB reset (except for the endpoint 0).
0
0
1
1
of this endpoint is correct.
EPSIZE
EPBK
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
Endpoint Size
8 bytes
16 bytes
32 bytes
64 bytes
128 bytes
256 bytes
512 bytes
1024 bytes
Endpoint Banks
1 (single-bank endpoint)
2 (double-bank endpoint)
3 (triple-bank endpoint)
Reserved
AT32UC3B
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