6. Evaluation Mode Operation
6.1.3 ADC
Configuration Area
The ADC Config button can be used to configure the input audio data routing path on
S1V30xxx. Pressing the button will send a “ISC_AUDIO_ADC_CONFIG_REQ” message
to S1V30xxx, with the information supplied in the area.
Figure 9 ADC Configuration Area
6.1.3.1 Routing
The Routing Drop-box is used to configure the basic routing of audio data input
in S1V30xxx. Four Options are provided:
•
ADC to Application:
Audio Data is sent to applications from the integrated
ADC on S1V30xxx.
•
I
2
S Input to Application:
Audio Data from the I
2
S Input on S1V30xxx is
sent to the Application.
•
ADC to I
2
S Out
: ADC output is sent directly I
2
S Output. Applications
cannot access ADC.
•
No Routing:
No ADC Routing. Applications cannot access ADC.
Note that in some cases the routing selection may be incompatible with the
routing of the DAC and an error will be reported in the System Message
Window.
6.1.3.2 Sample
Rate
The Sample Rate Drop-box
is used to configure the input sample rate of the
ADC. Most applications choose their own sample rate, so the default “Set by
Application” option should be used. The “Set by Application” option cannot be
used with the
“ADC to I
2
S Out” routing, since a defined sample rate is required for the
out-going I
2
S data.
Note that in some cases, the sample rate may be incompatible with the DAC
sample rate and an error will be reported in the System Message Window.
S1V30000 Series Graphical User Interface
Seiko Epson Corporation 19
Application (Rev 3.01)
