Description

DI2S bridge to APB, AHB, and AXI bus, it is a universal solution that provides an interface between a microprocessor and I2S, left/right justified modes, PCM, and TDM audio protocol codec. Thanks to the flexible configuration it can work as a receiver, or transmitter in master or slave mode, with configurable channel length or sample size. Additionally, a number of audio blocks can be adjusted according to specific project needs.

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Media

Key features

  • Configurable number of independent audio modules with their respective FIFO
  • Configurable TX/RX mode of each audio module
  • Configurable master/slave mode support of each audio module
  • Flexible I2S, LSB/MSB (right/left) justified, DSP, TDM modes support
  • Configurable sample size (8, 10, 16, 20, 24, 32 bit)
  • Configurable number of samples per frame (1 to 16)
  • Configurable FIFO depth
  • Flexible FIFO threshold interrupt control
  • FIFO Underrun/overrun interrupt
  • Inter modules clock synchronization
  • Available system interface wrappers:
    • AMBA – APB /¬†AHB / AXI Bus
    • Altera Avalon Bus
    • Xilinx OPB Bus