CS4207-CNZ Datasheet, PDF (39/148 Pages) Cirrus Logic – Low-power, 4-in / 6-out HD Audio Codec with Headphone Amp

6.3.5
Supported Stream Formats
Get Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
Node ID = 01h
Response Format:
Bits
31:3
2
1
Type
Read Only
Read Only
Read Only
0
Read Only
CS4207
Bits [19:8]
Verb ID = F00h
Bits [7:0]
Parameter ID = 0Bh
Default
0
0b
0b
1b
Description
Reserved
AC-3 (AC3): AC-3™ data is not supported.
Float32 (FLT32): Float32 formatted data is not
supported on this widget.
Pulse Code Modulation (PCM): PCM formatted
data is supported on this widget.
6.3.6
Supported Power States
Get Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
Node ID = 01h
Bits [19:8]
Verb ID = F00h
Bits [7:0]
Parameter ID = 0Fh
Response Format:
Bits
31
30
29
Type
Read Only
Read Only
Read Only
28:5
Read Only
4
Read Only
3
Read Only
2
Read Only
1
Read Only
0
Read Only
Default
1b
1b
0b
000000h
0b
1b
0b
0b
1b
Description
EPSS: Function Group supports extended
power states.
CLKSTOP: Function group supports D3 opera-
tion even if there is no BCLK present on the link.
S3D3coldSup: Software should place the codec
in D3hot state when the platform is entering S3
state.
Reserved
D3coldSup: D3cold operation is not supported.
D3Sup: D3hot operation is supported.
D2Sup: D2 operation is not supported.
D1Sup: D1 operation is not supported.
D0Sup: D0 operation is supported.
CLKSTOP is defined only at the Function Group only (not at the widget level) and indicates that the Func-
tion Group and all widgets under it support D3 operation even when there is no BITCLK present on the
Link. The maximum exit time back to fully functional is 10 milliseconds from the time that the clock begins
operation and a codec address cycle has been completed. The CLKSTOP capability extends the required
functionality for D3 support while the link is operational to include:
• Reporting of presence detect state changes, if enabled and supported by the pin widget, even if the Link
Clock is not running (controller low power state) or is currently in a Link Reset condition.
• Presence state changes occurring during Link Reset will be deferred until after the reset sequence has
completed. Presence state change Unsolicited Responses, if enabled, will not be lost because the Link
Clock stops or if Link Resets are generated before the Unsolicited Response for the state change has
been returned to the host.
DS880F4
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