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

 1027

SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

 AC97C_COSR

0xFFFAC048

    Read-only

0: Data has been loaded in Channel Transmit Register and is waiting to be loaded in the Channel Transmit Shift Register.

1: Channel Transmit Register is empty.

0: Data remains in the Channel Transmit Register or is currently transmitted from the Channel Transmit Shift Register.

1: Data in the Channel Transmit Register have been loaded in the Channel Transmit Shift Register and sent to the codec.

Active only when Variable Rate Mode is enabled (VRA bit set in the AC97C_MR register). Automatically cleared by a pro-
cessor read operation.

0: No data has been requested from the channel since the last read of the Status Register, or data has been available each
time the CODEC requested new data from the channel since the last read of the Status Register.

1: Data has been emitted while no valid data to send has been previously loaded into the Channel Transmit Shift Register
since the last read of the Status Register.

0: Channel Receive Holding Register is empty.

1: Data has been received and loaded in Channel Receive Holding Register.

Automatically cleared by a processor read operation.

0: No data has been loaded in the Channel Receive Holding Register while previous data has not been read since the last
read of the Status Register.

1: Data has been loaded in the Channel Receive Holding Register while previous data has not yet been read since the last
read of the Status Register.

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

–

–

OVRUN

RXRDY

–

UNRUN

TXEMPTY

TXRDY