Cirrus Logic CS4207 - Manual (Page 52)

52 DS880F4
CS4207
Bits [19:16] = ‘3h’, where bits [15:0] are defined below:
Bits Type Default Description
15 Write Only xb
Set Output Amplifier (SOA): Determines if the
value programmed refers to the output amplifier.
Set to a 1 for the value to be accepted.
14 Write Only 0b
Set Input Amplifier (SIA): Determines if the
value programmed refers to the input amplifier.
This bit should always be ‘0’ since an input
amplifier is not present on this widget.
13 Write Only xb
Set Left Amplifier (SLA): Selects the left chan-
nel (channel 0). A 1 indicates that the relevant
amplifier should accept the value being set. If
both bits are set, both amplifiers are set.
12 Write Only xb
Set Right Amplifier (SRA): Selects the right
channel (channel 1). A 1 indicates that the rele-
vant amplifier should accept the value being set.
If both bits are set, both amplifiers are set.
11:8 Write Only 0000b
Index (IDX): This field is used when program-
ming the input amplifiers on Selector Widgets
and Sum Widgets. This field is ignored.
7 Write Only xb
Mute (MUTE): When ‘1’, the Mute is active.
When ‘0’, the Mute is inactive.
6:0 Write Only xxxxxxxb
Gain (GAIN): Specifies the amplifier gain in dB.