Datasheet

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SAM7X Series [DATASHEET]

6120K–ATARM–11-Feb-14

34.6.9 UDP Reset Endpoint Register

Access Type: Read-write

• EP0: Reset Endpoint 0

• EP1: Reset Endpoint 1

• EP2: Reset Endpoint 2

• EP3: Reset Endpoint 3

• EP4: Reset Endpoint 4

• EP5: Reset Endpoint 5

This flag is used to reset the FIFO associated with the endpoint and the bit RXBYTECOUNT in the register UDP_CSRx.It also

resets the data toggle to DATA0. It is useful after removing a HALT condition on a BULK endpoint. Refer to Chapter 5.8.5 in the

USB Serial Bus Specification, Rev.2.0.

Warning: This flag must be cleared at the end of the reset. It does not clear UDP_ CSRx flags.

0 = No reset.

1 = Forces the corresponding endpoint FIF0 pointers to 0, therefore RXBYTECNT field is read at 0 in UDP_ CSRx register.

Reseting the endpoint is a two-step operation:

1. Set the corresponding EPx field.

2. Clear the corresponding EPx field.

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EP5 EP4 EP3 EP2 EP1 EP0