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I2S Frame Sync to 2-slot TDM short pulse Frame sync

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faisal78

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Hi
I have a MCU with multiple audio peripheral interconnects that is interfaced via I2S.
The MCU is the I2S Master generating the FS and CLK signals to all peripherals.

Now i would like to add another audio peripheral, however it only supports 2-slot TDM (short sync pulse).
Since I am stuck with the MCU I2S interface, i would like to build some kind of logic to convert the long FS pulse to a single bit pulse.
Can somebody help me on this, I'd think i have to use JK or D flip flops to achieve this.

Clock rates ~3MHz, 16-bit, 2-slot.
 

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