Cirrus-logic CS8420 Manuel d'utilisateur télécharger pdf (Page 61)

DS245F4 61

CS8420

13.3.1 Pin Description - Hardware Mode 2

Overall Device Control:

DFC0, DFC1 - Data Flow Control Inputs

DFC0 and DFC1 inputs determine the major data flow options available in Hardware mode, according to Table 5.

S/AES

- Serial Audio or AES3 Input Select

S/AES

is connected to VD+ in Hardware mode 2, in order to select the serial audio input.

SFMT0, SFMT1 - Serial Audio Port Data Format Select Inputs

SFMT0 and SFMT1 select the serial audio input and output ports’ format. See Table 10.

OMCK - Output Section Master Clock Input

Output section master clock input. The frequency must be 256x the output sample rate (Fso).

Audio Input Interface:

SDIN - Serial Audio Input Port Data Input

Audio data serial input pin.

ISCLK - Serial Audio Input Port Bit Clock Input or Output

Serial bit clock for audio data on the SDIN pin.

ILRCK - Serial Audio Input Port Left/Right Clock Input or Output

Word rate clock for the audio data on the SDIN pin. The frequency will be at the input sample rate (Fsi)

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Cirrus-logic CS8420 Manuel d'utilisateur Page 61