alc850 Realtek Semiconductor Corporation, alc850 Datasheet - Page 27

• Manufacturer Part Number: alc850
• Description: Eight Channel Ac?97 2.3 Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

7.1.18.
Default: BB80H
Eight Channel AC’97 2.3 Audio Codec
Note: SPCV is a read-only bit that indicates whether the current S/PDIF-Out configuration is supported or not. If the
configuration is supported, SPCV is set as 1 by H/W. The driver can check this bit to determine the status of the S/PDIF
transmitter system. SPCV is always operating, independent of the S/PDIF enable bit (MX2A.2). The S/PDIF output is
active if MX2A.2 is set, in spite of SPCV. If S/PDIF output is enabled, but SPCV is invalid (SPCV=0), channel status is
still output, but the output data bits will be all zeros. The condition that allows S/PDIF output is S/PDIF(MX2A.2)=1
& SPACV=1, otherwise S/PDIF output will be all zeros when MX2A.2=1 and SPACV=0 (invalid).
15:0
5:4
Bit
Bit
9
8
7
6
3
2
1
0
MX2C PCM Front/Center Output Sample Rate
Type
Type
R/W
R/W
R/W
R/W
R
R
R
R
-
-
Function
Front/Center Output Sample Rate (FOSR)
Function
Reserved
LFE DAC Status (LDAC)
0: Not yet
1: Ready
Surround DAC Status (SDAC)
0: Not yet
1: Ready
Center DAC Status (CDAC)
0: Not yet
1: Ready
S/PDIF-Out Slot Assignment (SPSA[1:0])
00: S/PDIF-Out source is from AC-LINK slot 3/4
01: S/PDIF-Out source is from AC-LINK slot 7/8
10: S/PDIF-Out source is from AC-LINK slot 6/9
11: S/PDIF-Out source is from AC-LINK slot 10/11 (Default)
Reserved
S/PDIF Enable
1: Enable
0: Disable (Hi-Z)
DRA Enable
1: Enable
0: Disable
VRA Enable
1: Enable
0: Disable
Table 23. MX2C PCM Front/Center Output Sample Rate
19
Track ID: JATR-1076-21 Rev. 1.4
Datasheet
ALC850