Manual

635
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
37.7.4 AC’97 Controller Codec Channel Receive Holding Register
Register Name: AC97C_CORHR
Access Type: Read-only
•SDATA: Status Data
Data sent by the CODEC in the third AC’97 input frame slot (Slot 2).
37.7.5 AC’97 Controller Codec Channel Transmit Holding Register
Register Name: AC97C_COTHR
Access Type: Write-only
• READ: Read/Write command
0: Write operation to the CODEC register indexed by the CADDR address.
1: Read operation to the CODEC register indexed by the CADDR address.
This flag is sent during the second AC’97 frame slot
• CADDR: CODEC control register index
Data sent to the CODEC in the second AC’97 frame slot.
• CDATA: Command Data
Data sent to the CODEC in the third AC’97 frame slot (Slot 2).
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
––––––––
15 14 13 12 11 10 9 8
SDATA
76543210
SDATA
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
READ CADDR
15 14 13 12 11 10 9 8
CDATA
76543210
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