+ CFP MSA compatible PHY with MDIO

[desleaver]

Hi, we are looking for best solution to configure CFP MSA compatible PHY
with MDIO interface. The best would be to have some USB to MDIO adapter
with LabView support.


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[Paul]

desleaver wrote:
> Hi, we are looking for best solution to configure CFP MSA compatible PHY
> with MDIO interface. The best would be to have some USB to MDIO adapter
> with LabView support.

Is this the interface ?

(Page 17)
http://www.cfp-msa.org/Documents/CFP-MSA-HW-Spec-rev1-40.pdf

Something like this, will get you from USB to a parallel bus format.
At least with this, for a person doing home projects, this
solves the USB logic block side of the problem.

http://www.ftdichip.com/Products/ICs/FT240X.html

You'll still need glue logic, to get you from the 4MHz
synchronous MDIO, to the async FIFO interface on the FTDI chip.
And the 1.2V levels on the MDIO, aren't exactly convenient.
It would still be messy.

Companies doing this commercially, would likely be using
FPGA chips, and custom designing blocks to handle the
design. FPGAs have eliminated whole areas of electronics
design, resulting in fewer jelly beans with exotic
functions a person can buy off the shelf.

You can post your query to a newsgroup like sci.electronics,
to find people more tuned to your question.

Paul

[turetto]

turetto had written this in response to
http://www.talkcomputer.com/homebuilt/CFP-MSA-compatible-PHY-with-MDIO-23112-.htm
:

desleaver wrote:


> Hi, we are looking for best solution to configure CFP MSA compatible PHY
> with MDIO interface. The best would be to have some USB to MDIO adapter
> with LabView support.


> -------------------------------------

Try SUB-20 http://www.xdimax.com/sub20/sub20.html
It has 2 MDIO channels. One is CFP compatible running at 1.2V with 4MHz
MDC frequency.
SUB-20 has integration modules for LabView. Low price, good support,
reliability. What else?
We use SUB-20 as I2C master as well and also via LabView module.




-------------------------------------

[Paul]

turetto wrote:
> turetto had written this in response to
> http://www.talkcomputer.com/homebuilt/CFP-MSA-compatible-PHY-with-MDIO-23112-.htm
> :
>
> desleaver wrote:
>
>
>> Hi, we are looking for best solution to configure CFP MSA compatible PHY
>> with MDIO interface. The best would be to have some USB to MDIO adapter
>> with LabView support.
>
>
>> -------------------------------------
>
> Try SUB-20

> It has 2 MDIO channels. One is CFP compatible running at 1.2V with 4MHz
> MDC frequency.
> SUB-20 has integration modules for LabView. Low price, good support,
> reliability. What else?
> We use SUB-20 as I2C master as well and also via LabView module.

Now that you've done this drive-by spamming job,
I'm curious what you feel the "use case" is for
this product.

How would a prospective customer use it ?

How many could you hope to sell ?

Somehow, I hear crickets chirping at the sales offices of xdimax.

Paul