Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Hoja De Datos

 751

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

EMAC_RSR

0xFFFBC020

Read-write

This register, when read, provides details of the status of a receive. Once read, individual bits may be cleared by writing 1
to them. It is not possible to set a bit to 1 by writing to the register.

An attempt was made to get a new buffer and the pointer indicated that it was owned by the processor. The DMA rereads
the pointer each time a new frame starts until a valid pointer is found. This bit is set at each attempt that fails even if it has
not had a successful pointer read since it has been cleared.

Cleared by writing a one to this bit.

One or more frames have been received and placed in memory. Cleared by writing a one to this bit.

The DMA block was unable to store the receive frame to memory, either because the bus was not granted in time or
because a not OK 

hresp(bus error)

was returned. The buffer is recovered if this happens.

Cleared by writing a one to this bit.

31

30

29

28

27

26

25

24

–

–

–

–

–

–

–

–

23

22

21

20

19

18

17

16

–

–

–

–

–

–

–

–

15

14

13

12

11

10

9

8

–

–

–

–

–

–

–

–

7

6

5

4

3

2

1

0

–

–

–

–

–

OVR

REC

BNA