[Open-graphics] DDR Vtt termination ?

[Sebastien Bourdeauducq]

> P2P for me is a `direct chip to chip trace without branching`, in this
> case also for 1 driver and 1 receiver per line (not counting address
> lines now - they are a mystery even after reading the above pdfs, that
> the termination is same for load of 2 (data) and 16 (addr) when using 2
> modules with 8 chips..).

Maybe that's because the chip's input impedance on the address lines is high 
compared to Rt ?