Cirrus Logic CS4207 - Manual (Page 55)

DS880F4 55
CS4207
6.5.4 Input Amplifier Capabilities
Get Parameter Command Format:
Response Format:
6.5.5 Connection List Length
Get Parameter Command Format:
Response Format:
Bits [31:28] Bits [27:20] Bits [19:8] Bits [7:0]
CAd = X ADC1 Node ID=05h
ADC2 Node ID=06h Verb ID = F00h Parameter ID = 0Dh
Bits Type Default Description
31 Read Only 1b
Mute Capable (MC): Supports muting.
30:23 Read Only 00000000b Reserved
22:16 Read Only 0000011b
Step Size (SS): Indicates that the size of each
amplifier’s step gain is 1.0 dB.
15 Read Only 0b Reserved
14:8 Read Only 0111111b
Number of Steps (NOS): There are 64 gain
steps; Gain range is from +12 dB to -51 dB in
1.0 dB steps.
If analog input pin widget is selected as input
source, then the range of +12 dB to -12 dB is from
analog PGA and the range of -13 dB to -51 dB is
digital volume control.
If the digital mic input pin widget is selected as the
input source, then the entire gain range from
+12 dB to -51 dB is digital volume control.
7 Read Only 0b Reserved
6:0 Read Only 0110011b
Offset (OFST): Indicates that if “0110011b” is pro-
grammed into the Amplified Gain Control, it would
result in a gain of 0 dB.
Bits [31:28] Bits [27:20] Bits [19:8] Bits [7:0]
CAd = X ADC1 Node ID=05h
ADC2 Node ID=06h Verb ID = F00h Parameter ID = 0Eh
Bits Type Default Description
31:8 Read Only 000000h Reserved
7 Read Only 0b
Long Form (LF): Connection list is short form.
6:0 Read Only 0000010b
Connection List Length (CLL): Two selectable
inputs are possible for this widget.