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michele
2026-08-03 18:04:44 +02:00
parent 145a651e2a
commit 9ecf793fae
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docs/adr/ADR-003-I2S-Audio-Routing-Architecture.md
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@@ -41,13 +41,15 @@ External audio devices operate as I2S slaves whenever supported.
## Audio Input Allocation
| Audio Processor Port | Device | Function |
|| Audio Processor Input | Device | Function |
|---|---|---|
| SDATA_IN0 | System Controller | Network audio stream |
| SDATA_IN1 | Radio Receiver | Radio audio |
| SDATA_IN2 | DECODEC | Optical digital input |
| SDATA_IN3 | Bluetooth RX | Wireless audio input |
| SPDIFIN | Optical Interface | Optical digital audio input |
| SDATA_IN2 | Bluetooth RX | Wireless audio input |
The ADAU1467 internal audio routing matrix allows any digital audio input
to be routed to the DSP core, ASRCs, serial outputs or SPDIF output.
System Controller --------
Radio Receiver ---------
@@ -57,11 +59,13 @@ BT RX ---------/
## Audio Output Allocation
| Audio Processor Port | Device | Function |
## Audio Output Allocation
| Audio Processor Output | Device | Function |
|---|---|---|
| SDATA_OUT0 | CODEC/DAC | Analog audio output |
| SDATA_OUT1 | Bluetooth TX | Wireless audio output |
| SDATA_OUT2 | ENCODEC | Optical digital output |
| SPDIFOUT | Optical Interface | Optical digital audio output |
| SDATA_OUT3 | Reserved | Future expansion |
Audio Processor