Texas Instruments TLV320DAC23, TLV320AIC23 manual Power Down Register, Audio Format Register

Power Down Register

The Apply button sends the current bit values shown on the Analog Control panel to the Audio (Digital) register section of the register panel. The OK button performs the same function as the Apply button and simultaneously closes the register panel.

Figure 4–7. Digital Control

4.6.9Power Down Register

Address: 0000110

D7 sets the device power. D6 sets CLK. D5 sets the oscillator. D4 sets the outputs. D3 sets the DAC. D2 sets the ADC. D1 sets the microphone input. D0 sets the line input.

Clicking the Send Data button sends only the power down data without clicking the Apply button.

4.6.10Audio (Format) Register

Address: 0000111

D6 sets master/slave (0 = slave, 1 = master). D5 sets the DAC left/right swap (0 = disabled, 1 = enabled). D4 sets the DAC left/right phase (0 = right channel on, LRCIN high, 1 = LRCIN low). In DSP mode (0 = MSB is available on the first BCLK rising edge after an LRCIN rising edge, 1 = MSB is available on the second BCLK rising edge after an LRCIN rising edge). D3–D2 set the input word length (00 = 16b, 01 = 20b, 10 = 24b, 11 = 32b). D1–D0 set the data format (11 = DSP; 10 = I2S; 01 = MSB first, left aligned; 00 = MSB first, right aligned).

Clicking the Format Control button opens a Format Control panel (see Figure 4–8) that allows setting all the audio format parameters without reference to their bit values. The Format Control button in the audio format register box is functionally identical to the Format Control button on the main panel (see Section 4.4.16).

The Cancel button undoes any changes that have been made in register bit values, so the register panel matches the current state of the EVM registers.

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