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4 changing serial control protocol (i2c or spi), 4 changing serial control protocol (i2c or spi) -7, Figure 4-7. codec dac properties -7 – Cirrus Logic CDB48500-USB User Manual

Page 28: 4 changing serial control protocol (i, C or spi)

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6

.

Figure 4-7. Codec DAC Properties

This Audio Out dialog allows the user to set the following parameters for the CS42448 DACs:

Audio Data Format -1

2

S or Left-Justified 24-bit

Output Sampling Frequency Range - Select the Fs range where 1FS = 32 kHz, 44.1 kHz, or 48 kHz, 2Fs =
64 kHz, 88.2 kHz, 96 kHz, etc.

Select CODEC/DAC as SCLK and LRCLK Master device.

S/PDIF Enable-Checking this box configures DAO3 for S/PDIF instead of I

2

S.

4.2.4 Changing Serial Control Protocol (I

2

C or SPI)

The CDB48500 is designed to communicate using either I

2

C or SPI protocols. In order to change the

communication mode in DSP Composer go to the menu bar and select File

Properties, which brings up the

Project Properties dialog shown in

Fig. 4-8

. The Board Comm Mode pull-down menu allows the user to select

the serial protocol mode.

The “Advanced..” button of the Project Properties dialog is currently not active.