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TMS320DM6437: Why are the DDR2 DDR_D IBIS model definitions b/w DM6437 and C6746 different?

j-breeze
Mastermind 7560 points

Part Number: TMS320DM6437

​​Hi Champs,

I asked before, but it was for different families. So, I'd like to start a new thread.
I posted the same thread to OMAP-L13x, AM1x and C674x Processors Forum because I'm not sure how I can ask questions related to different families.

The model type of DM6437 DDR2 DDR_D[15:0] pins in the IBIS model is defined as I/O, not 3-state.
On the other hand, the model type of C6746 is defined as 3-state, not I/O.

The I/F is the JEDEC standard. So, could you please let me know which definition is correct?

Regards,
j-breeze