TMS320F28378D: Multichannel serial bus with external tri-state buffer

Hi Denis,

Each McBSP module has the following pins available (x representing module A or B):

MFSXx : Transmit Frame synchronization

MCLKXx : Transmit clock

MDXx : Transmit serial data

MDRx : Receive serial data      

MCLKRx: Receive clock

MFSRx: Receive frame synchronization

If these pins are not enough for your application then you can setup a gpio and program it accordingly to output high or low within your application code.

Would you happen to have a block diagram of your ideal setup?

Best Regards,

Marlyn

We will have many DSP, possibly up to 15, all connected together using the McBSP in TDM mode. Since the environment is little noisy we intend to use M-LVDS. So each DSP has to activate his external M-LVDS data buffer during their respective time slot.

I did not see a pin for this; I would expect a signal name "Transmit Data Valid" or "Transmit Active".

So how can I enable the M-LVDS TX buffer?

In fact this question is not particular to TMS320F28378D but most DSP with McBSP.

Regards,

Denis

have you considered using the FSI peripheral instead?  This seems like a better solution than McBSP.