Allwinner A20 - Page 731

A20 User Manual (Revision 1.2) Copyright © 2013 Allwinner Technology Co., Ltd. All Rights Reserved. Page 731 / 812
Offset: 0x04
Register Name: AC_FAT
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
10: 20-bit
11: Reserved
1:0
R/W
0
RX_RES
RX Audio data resolution
00: 16-bit
01: 18-bit
10: 20-bit
11: Reserved
6.10.7.3. AC97 CODEC COMMAND REGISTER
Offset: 0x08
Register Name: AC_CMD
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:24
/
/
/
23
R/W
0
OP
Read enable
0: Command write
1: Status read
22:16
R/W
0x00
CC_ADDR
Codec command address
15:0
R/W
0x0000
CC
Codec command data
6.10.7.4. AC97 CODEC STATUS REGISTER
Offset: 0x0C
Register Name: AC_CS
Default Value: 0x0000_0000
Bit
Read/Write
Default
Description
31:23
/
/
/