1865410_en-US

TDM IN NIBBLE MODE SUPPORT in place of P1021

We would like to know any processor that supports nibble mode for TDM in place of P1021. as this became obsolete.

Re: TDM IN NIBBLE MODE SUPPORT in place of P1021

Finding a direct replacement for the obsolete NXP P1021 with explicit "nibble mode for TDM" support is challenging, as this is a very specific, non-standard interface likely achieved through custom configuration of older flexible peripherals. Your best approach is to seek modern embedded processors with **highly configurable serial communication interfaces** or dedicated TDM peripherals. Strong candidates include **NXP Layerscape (LS series)** processors, which are successors to the QorIQ line, or **STMicroelectronics STM32 (H7/F7/MP1 series)**, particularly their flexible Serial Audio Interface (SAI) modules, which can often be configured to emulate diverse TDM data formats, including custom 4-bit transfers. Thoroughly reviewing their documentation for bit-level control and TDM configurability is essential.

Re: TDM IN NIBBLE MODE SUPPORT in place of P1021

You could use the LS1043A MPU due both share the same QUICC Engine block used for TDM .

Note: The TDM can only work with an external sync and external clock; other options are not supported.