alc658 Realtek Semiconductor Corporation, alc658 Datasheet - Page 21

• Manufacturer Part Number: alc658
• Description: Six-channel Ac?97 2.3 Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

6.1.16. MX28 Extended Audio ID
Default: 09C6H
The Extended Audio ID register is a read-only register used to communicate information to the digital controller.
Six-Channel AC’97 2.3 Audio Codec
15:14
13:12
11:10
5:3
Bit
9
8
7
6
2
1
0
Type
R
R
R
R
R
R
R
R
R
-
-
Function
ID[1:0]. Always read as 0 (Only primary ID is supported)
Reserved. Read as 0
REV [1:0]=10 to indicate that the ALC658 is AC’97 rev. 2.3 compliant
AMAP. Read as 0.
LDAC. Read as 1 (LFE DAC is supported, according to AC’97 rev. 2.3)
SDAC. Read as 1 (Surround DAC is supported, according to AC’97 rev. 2.3)
CDAC. Read as 1 (Center DAC is supported, according to AC’97 rev. 2.3)
Reserved. Read as 0
S/PDIF. Read as 1 (S/PDIF output is supported)
DRA. Read as 1 (Double Rate Audio is supported)
VRA. Read as 1 (Variable Rate Audio is supported)
Table 22. MX28 Extended Audio ID
17
Datasheet
ALC658
Rev. 1.3