Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Data Sheet

 748

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

EMAC_TSR

0xFFFBC014

Read-write

This register, when read, provides details of the status of a transmit. 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.

Set when a transmit buffer descriptor is read with its used bit set. Cleared by writing a one to this bit.

Set by the assertion of collision. Cleared by writing a one to this bit.

Cleared by writing a one to this bit.

If high transmit is active.

If the buffers run out during transmission of a frame, then transmission stops, FCS shall be bad and tx_er asserted. Cleared
by writing a one to this bit.

Set when a frame has been transmitted. Cleared by writing a one to this bit.

Set when transmit DMA was not able to read data from memory, either because the bus was not granted in time, because
a not OK 

hresp(bus error)

was returned or because a used bit was read midway through frame transmission. If this

occurs, the transmitter forces 

bad

CRC. 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

–

UND

COMP

BEX

TGO

RLE

COL

UBR