STAC9271 Datasheet, PDF (164/223 Pages) Integrated Device Technology – 10-CHANNEL HIGH DEFINITION AUDIO CODEC

STAC9271/9272/9273/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
6.24.7. DigIn EAPD
Get
Set1
Table 382. DigIn EAPD Command Verb Format
Verb ID
Payload
F0C
00
70C
See bits [7:0] of bitfield table.
Response
See bitfield table.
0000_0000h
Bit
[31.:2]
[1]
[0]
Table 383. DigIn EAPD Command Response Format
Bitfield Name
RW
Reset
Description
Rsvd2
R
0x0
Reserved
Data
EAPD value reflected on the EAPD pin.
0= power down external amp;
RW
0x0
1= power up external amp if PwrState < 0x2.
If PwrState >= 0x2, Pin47 is Hi-Z. An
external pull-down is required if EAPD must
be low when Pin Widget is powered down.
Rsvd1
R
0x0
Reserved
6.24.8. DigIn ConfigDefault
Table 384. DigIn ConfigDefault Command Verb Format
Verb ID
Payload
Response
Get
F1C
00
See bitfield table.
Set1
71C
See bits [7:0] of bitfield table.
0000_0000h
Set2
71D
See bits [7:0] of bitfield table.
0000_0000h
Set3
71E
See bits [7:0] of bitfield table.
0000_0000h
Set4
71F
See bits [7:0] of bitfield table.
0000_0000h
Bit
[31.:24]
[23.:16]
Table 385. DigIn ConfigDefault Command Response Format
Bitfield Name
RW
Reset
Description
Config4
RW
0x81
Port Connectivity= No connect;
Location= Mainboard rear.
Config3
RW
0xC4
Default Device= SPDIF In;
Connection Type= RCA.
IDT™ 10-CHANNEL HIGH DEFINITION AUDIO CODEC
164
IDT CONFIDENTIAL
STAC9271/9272/9273/9274 V 1.0 MARCH2007