SLOS948 February 2019 TAS6424M-Q1
The TAS6424M-Q1 device supports four different digital input formats which are: I2S, Right Justified, Left Justified, and TDM mode. Depending on the format, the device can support 16, 18, 20, 24, and 32 bit data. The supported frequencies are 96 kHz, 48 kHz, and 44.1 kHz. Please see Table 13 for the I2C register, SAP Control, for the complete matrix to set up the serial audio port.
Bits 3, 4, and 5 in this register are ignored in all input formats except for TDM. Setting up all the control registers to the system requirements should be done before the device is placed in Mute mode or Play mode. After the registers are setup, use bit 7 in register 0x21 to clear any faults. Then read the fault registers to make sure no faults are present. When no faults are present, use register 0x04 to place the device properly into play mode.