FreeLists / si-list / [SI-LIST] Re: return path

[steve weir <weirsi@xxxxxxxxxx>]

Vdd reference on address / control supports low cost PCBs. 

ODT on common lines requires enabling in one chip only via control 
registers.  The address lines are used to access the control registers.

Steve.

chrice102 wrote:
> hi all
>  I have some  problems :In DDR system,the reference plane of ADDRS signals is 
> Vddr,why isn't gnd plane? and why does the chip vendor also  put the 
> terminater of the ADDRS signal into the chip? 
> 2008-04-08 
>
>
>
> chrice102 
>
>
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