alc880 Realtek Semiconductor Corporation, alc880 Datasheet - Page 68

• Manufacturer Part Number: alc880
• Description: 7.1 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.34. Verb – Set GPIO Direction (Verb ID=717h)
8.35. Verb – Get GPIO Unsolicited Response Enable Mask
7.1 Channel High Definition Audio Codec
Set Command Format
Bit [31:28]
Codec Response for NID=01h (Audio Function Group)
Note: All nodes except Audio Function Group (NID=01h) will ignore this verb.
Codec Response for Other NID
Get Command Format
Bit [31:28]
Codec Response for NID=01h (Audio Function Group)
Note: All nodes except Audio Function Group (NID=01h) will ignore this verb.
Codec Response for Other NID
CAd=X
CAd=X
31:8
31:0
31:8
31:0
7:2
1:0
7:2
1:0
Bit
Bit
Bit
Bit
(Verb ID=F19h)
Node ID=Xh
Table 68. Verb – Get GPIO Unsolicited Response Enable Mask (Verb ID=F19h)
Node ID=Xh
Bit [27:20]
Bit [27:20]
Reserved
Reserved
Description
GPIO[7:2] Direction Control. Not supported
GPIO[1:0] Direction Control
0: The corresponding GPIO pin is configured as an input
1: The corresponding GPIO pin is configured as an output
Description
0’s
Description
GPIO[7:2] Unsolicited Enable Mask. Not supported
GPIO[1:0] Unsolicited Enable mask
0: Unsolicited response will not be sent on link
1: Unsolicited response will be sent on link when state of corresponding GPIO has been changed
Description
0’s
Table 67. Verb – Set GPIO Direction (Verb ID=717h)
Verb ID=F19h
Verb ID=717h
Bit [19:8]
Bit [19:8]
Payload Bit [7:0]
Payload Bit [7:0]
Direction [7:0]
58
0’s
Track ID: JATR-1076-21
Codec Response Format
Codec Response Format
UnsolEnable [7:0]
Response [31:0]
Response [31:0]
0’s for all nodes
ALC880 Series
Datasheet
Rev. 1.4