CS4207-CNZ Datasheet, PDF (74/148 Pages) Cirrus Logic – Low-power, 4-in / 6-out HD Audio Codec with Headphone Amp

6.7.6
Converter Stream, Channel
Get Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
S/P Tx 1 Node ID=08h
S/P Tx 2 Node ID=14h
Bits [19:8]
Verb ID = F06h
CS4207
Bits [7:0]
Payload = 00h
Set Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
S/P Tx 1 Node ID=08h
S/P Tx 2 Node ID=14h
Bits [19:8]
Verb ID = 706h
Bits [7:0]
Payload = xxh
Response Format:
Bits
31:8
Type
Read Only
7:4
Read/Write
3:0
Read/Write
Default
000000h
0h
0h
Description
Reserved
Stream Number (SN): Indicates the stream
number used by the Output Converter. “0h” is
stream 0, “1h” is stream 1, etc.
By convention, stream 0 is reserved and unused
so that converter whose stream number has
been reset to “0h” does not unintentionally
decode data not intended for them.
Lowest Channel Number (LCN): Indicates the
lowest channel used by the Output Converter.
The stereo converter will use this LCN value plus
1 for its left and right channel.
6.7.7
Converter Format
Get Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
S/P Tx 1 Node ID=08h
S/P Tx 2 Node ID=14h
Bits [19:16]
Verb ID = Ah
Bits [15:0]
Payload = 0000h
Set Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
S/P Tx 1 Node ID=08h
S/P Tx 2 Node ID=14h
Bits [19:16]
Verb ID = 2h
Bits [15:0]
Payload = xxxxh
Response Format:
Bits [15:0] must be programmed by software with the same value programmed into the Stream Descriptor,
so that the data format being transmitted on the link matches what is expected by the consumer of the
data.
If the TYPE is set to Non-PCM, the controller pushes data over the link and is not concerned with format-
ting. The base rate, data type, and number of Words (MULT) to send each valid frame are specified to
control the rate at which the non-PCM data is sent.
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DS880F4