SLAU472C February 2013 – November 2023 TAS2505 , TAS2505-Q1
The audio serial interface on the TAS2505 has I/O control to allow communication with two independent processors for audio data. The processors can communicate with the device one at a time. This feature is enabled by register programming of the various pin selections.
The secondary audio interface uses multifunction pins. For an overview on multifunction pins please see Section 3.1.3 Table 3-1 and Table 3-2 illustrates possible audio interface routing. The multifunction pins SCLK and MISO are only available in I2C communication mode. This multiplexing capability allows the TAS2505 to communicate with two separate devices with independent I2S/PCM busses, one at a time.