8 ac’97 controller channel a status register, 9 ac’97 controller channel b status register, 10 ac’97 controller channel c status register – Rainbow Electronics AT91CAP9S250A User Manual
Page 637
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637
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
37.7.8
AC’97 Controller Channel A Status Register
Register Name:
AC97C_CASR
Access Type:
Read-only
37.7.9
AC’97 Controller Channel B Status Register
Register Name:
AC97C_CBSR
Access Type:
Read-only
37.7.10
AC’97 Controller Channel C Status Register
Register Name:
AC97C_CCSR
Access Type:
Read-only
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24
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16
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15
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9
8
RXBUFF
ENDRX
–
–
TXBUFE
ENDTX
–
–
7
6
5
4
3
2
1
0
–
–
OVRUN
RXRDY
–
UNRUN
TXEMPTY
TXRDY
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30
29
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27
26
25
24
–
–
–
–
–
–
–
–
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12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
–
OVRUN
RXRDY
–
UNRUN
TXEMPTY
TXRDY
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30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
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–
–
–
–
–
–
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9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
–
OVRUN
RXRDY
–
UNRUN
TXEMPTY
TXRDY
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