[SI-LIST] Re: Termination resistors
- From: steve weir <weirsi@xxxxxxxxxx>
- To: david stern <dan1_st@xxxxxxxxx>
- Date: Sat, 28 Feb 2009 10:55:43 -0800
David to receive from a an offset voltage source use the receiver mid
termination and AC coupling caps by programming the receiver attribute
RCV_TERM_MID = TRUE.
If your application has short run length use the internal capacitors:
AC_CAP_DIS = FALSE. If your application has long run lengths, you will
need to use external coupling capacitors and set AC_CAP_DIS = TRUE.
To transmit to something with another voltage reference follow a similar
process for that device's receiver.
The MGT clock inputs are compatible with LVPECL like ON SEMI MC100xx parts.
Steve.
david stern wrote:
> Hello
>
> I need help in the following
>
> I need to interface a LVPECT device to virtex 5 MGT ROCKET IO which is CML
> input.
> How to do it which termination resistors to use?
> I asked this question in the XILINX forum but didn't get an answer.
>
> Thank you
>
> David
>
>
>
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