Cirrus Logic CS4207 - Manual (Page 127)

DS880F4 127
CS4207
6.15.3 Processing State
Get Parameter Command Format:
Set Parameter Command Format:
Response Format:
6.15.4 Coefficient Index
The
Coefficient Index is a zero-based index into the processing coefficient list which will be either read
or written using the Processing Coefficient control. When the coefficient has been read or written to, the
Coefficient Index will automatically increment by one so that the next Set Processing Coefficient verb will
load the coefficient into the next slot. The auto-increment feature can be disabled by setting the Disable
Coefficient Index Auto-Increment bit in the
DAC Configuration (CIR = 0003h) register. The auto-increment
feature will “wrap around” at a Coefficient Index value of 04h, that is an index of 04h will be auto-incre-
mented to an index of 00h. If Coefficient Index is set to be greater than the number of “slots” in the pro-
cessing coefficient list, unpredictable behavior will result if an attempt is made to Get or Set the processing
coefficient.
Get Parameter Command Format:
Set Parameter Command Format:
Response Format:
Bits [31:28] Bits [27:20] Bits [19:8] Bits [7:0]
CAd = X Node ID = 11h Verb ID = F03h Payload = 00h
Bits [31:28] Bits [27:20] Bits [19:8] Bits [7:0]
CAd = X Node ID = 11h Verb ID = 703h Payload = xxh
Bits Type Default Description
31:8 Read Only 000000h Reserved
7:0 Read/Write 00h
HDA Defined Processing State: Writes to these
bits set the Widget to the processing state as
described below:
’00’h; Processing Off.
’01’h; Processing On.
’02’h; Processing Benign. Benign state is not
supported. Will be treated as “Processing Off”.
’03’h - ‘7F’h; - Reserved
Bits [31:28] Bits [27:20] Bits [19:16] Bits [15:0]
CAd = X Node ID = 11h Verb ID = Dh Payload = 0000h
Bits [31:28] Bits [27:20] Bits [19:16] Bits [15:0]
CAd = X Node ID = 11h Verb ID = 5h Payload = xxxxh
Bits Type Default Description
31:16 Read Only 0000h Reserved
15:0 Read/Write 0000h
Index n: Coefficient Index value.