Which pins should be used for ADC or DAC TDM bus? (eg., 6CH audio ADC or 8CH DAC)
I will resort to trial and error if you cannot give guidance. I have already done what you have suggested.
The schematics do not show TDM bus connections.
They only show IIS.
The blackfin in hardware reference manual is ambiguous.
I did not make it clear in the last post. Note that BF707 has SPORT peripheral which support TDM mode. The multichannel mode of SPORT operation allows the SPORT to communicate as part of a time division multiplexed (TDM) serial system.
In TDM communications, a large frame of streamed serial data words is defined to be a particular length. It consists of a specific number of channels, and each channel contains one serial data word of the defined data length. For example, a 24-word block of 24-bit data can be defined to be a window within a frame, having a duration of 576 bit clocks and comprised of 24 continuous channels. The SPORT is configured to transfer on specific channels within a defined window in this frame.
See the below SPORT signal description given below..
For more information about SPORT architectural and functional information please refer SPORT chapter in BF707 hardware reference manual.
Please let me know if you have any questions.