CS4207-CNZ Datasheet, PDF (82/148 Pages) Cirrus Logic – Low-power, 4-in / 6-out HD Audio Codec with Headphone Amp

Response Format:
Bits
31:8
Type
Read Only
7
Read/Write
6
Read/Write
5
Read Only
4:3
Read Only
2:0
Read Only
CS4207
Default
000000h
0b
0b
0b
00b
000b
Description
Reserved
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.
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.
Input Enable (INE): Set to ‘0’ since there is no
input path associated with the pin widget.
Reserved
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.
6.8.8
Unsolicited Response Control
Get Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
Node ID = 09h
Bits [19:8]
Verb ID = F08h
Bits [7:0]
Payload = 00h
Set Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
Node ID = 09h
Bits [19:8]
Verb ID = 708h
Bits [7:0]
Payload = xxh
Response Format:
Bits [31:0] are sticky and will not be reset by a Link Reset or a Function Group Reset:
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
Tag: Is a 6 bit value assigned and used by soft-
ware to determine what codec node generated
5:0
Read/Write
000000b
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.
Unsolicited Response Format:
Bits [31:26]
Tag
Bits [25:0]
Response
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DS880F4