CS4207 Datasheet, PDF (43/144 Pages) Cirrus Logic – Low-power, 4-in / 6-out HD Audio CODEC with Headphone Amp

Response Format:
Bits
31:8
7:4
Type
Read Only
Read Only
3:0
Read/Write
CS4207
Default
000000h
0h
0h
Description
Reserved
GPIO[7:4] Sticky Mask: Not Supported.
GPIO[3:0] Sticky Mask: Defines GPIO Input
Type (0 = Non-Sticky, 1 = Sticky) when a GPIO
pin is configured as an input. GPIO inputs config-
ured as Sticky are cleared by writing a 0 to the
corresponding bit of the GPIO Data Control
The default value for these bits (0h) is all pins
Non-Sticky. Non implemented GPIO pins always
return 0’s. Sticky is defined as Positive-Edge
sensitive, Non-Sticky as Level sensitive.
6.3.13 Subsystem ID
This field provides the subsystem ID and assembly ID of the functional group to software. It is a Read-Write-Once
register; BIOS writes to this field to configure the Subsystem ID and Assembly ID during the boot process.
Get Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
Node ID = 01h
Bits [19:8]
Verb ID = F20h
Bits [7:0]
Parameter ID = 00h
Set Parameter Command Format:
Bits [31:28]
Bits [27:20]
CAd = X
Node ID = 01h
CAd = X
Node ID = 01h
CAd = X
Node ID = 01h
CAd = X
Node ID = 01h
Bits [19:8]
Verb ID = 723h
Verb ID = 722h
Verb ID = 721h
Verb ID = 720h
Bits [7:0]
Parameter ID = xxh
SSID[23:16]
Parameter ID = xxh
SSID[15:8]
Parameter ID = xxh
SSID[7:0]
Parameter ID = xxh
Assembly ID[7:0]
Response Format:
Bits
31:24
23:16
15:8
7:0
Type
Read/Write Once
Read/Write Once
Read/Write Once
Read/Write Once
Default
10h
13h
42h
07h
Description
Subsystem ID[23:16]
Subsystem ID[15:8]
Subsystem ID[7:0]
Assembly ID[7:0]
6.3.14 Function Reset
Function Reset is an “Execute” verb. There is no physical register associated with the Function Reset.
See “Function Group Reset” section on page 24 for more details.
Set Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
Node ID = 01h
Bits [19:8]
Verb ID = 7FFh
Bits [7:0]
Parameter ID = 00h
DS880F1
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