Cirrus Logic CS4207 - Manual (Page 82)

82 DS880F4
CS4207
Response Format:
6.8.8 Unsolicited Response Control
Get Parameter Command Format:
Set Parameter Command Format:
Response Format:
Bits [31:0] are sticky and will not be reset by a Link Reset or a Function Group Reset:
Unsolicited Response Format:
Bits Type Default Description
31:8 Read Only 000000h Reserved
7 Read/Write 0b
H-Phone Enable (HPE): This bit has no effect
on the output path. Per HD Audio spec, a ‘1’
enables a low impedance amplifier associated
with the output. When ‘0’, this bit disables a low
impedance amplifier associated with the output.
6 Read/Write 0b
Output Enable (OUTE): This bit has no effect on
the output path. Per HD Audio spec, a ‘1’
enables the output path of the Pin Widget. When
‘0’, the output path of the Pin Widget is shut off.
5 Read Only 0b
Input Enable (INE): Set to ‘0’ since there is no
input path associated with the pin widget.
4:3 Read Only 00b Reserved
2:0 Read Only 000b
VREF Enable (VREFE): This field selects one of
the possible states for the VREF signal(s). The
Pin Widget does not support VREF generation
as indicated in the Pin Capabilities. As such, this
field will always be “000b” to select Hi-Z state.
Bits [31:28] Bits [27:20] Bits [19:8] Bits [7:0]
CAd = X Node ID = 09h Verb ID = F08h Payload = 00h
Bits [31:28] Bits [27:20] Bits [19:8] Bits [7:0]
CAd = X Node ID = 09h Verb ID = 708h Payload = xxh
Bits Type Default Description
31:8 Read Only 000000h Reserved
7 Read/Write 0b
Enable: Controls the actual generation of Unso-
licited Responses. 1 is enable; 0 is disable.
6 Read Only 0b Reserved
5:0 Read/Write 000000b
Tag: Is a 6 bit value assigned and used by soft-
ware to determine what codec node generated
the unsolicited response. The value programmed
into the Tag field is returned in the top 6 bits
(31:26) of every Unsolicited Response gener-
ated by this node.
Bits [31:26] Bits [25:0]
Tag Response