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iMX6Q SSI slave mode timing specifications

Question asked by HAUSER Thierry on Nov 24, 2016
Latest reply on Nov 29, 2016 by Artur Petukhov

Hi,

We are using SSI in I2S slave mode with 24 bits audio sample . Sample frequency is  48KHz up to 192KHz.

Into the "i.MX 6Dual/6Quad Applications Processors for Industrial Products, Rev. 4, 07/2015", chap 4.11.19.3 SSI Transmitter Timing with External Clock mention :

AUDx_TXC (Input), timing SS22 = 81.4ns min (12.285.. MHz max)

I2S slave = 2 time slot of 32 bits = 64 bits per frame =

  •  @48KHz : 48000*2*32 = 3.072MHz
  • @192KHz : 192000*2*32 = 12.288MHz

Does it means that @192KHz I2S 32bits shouldn't work correctly...?

Thanks

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