Hi Pat still having problems
The demo board is interfacing with the MP430 (reading/ writing to the registers),
The architecture, is a micro connected to MAC "A" (RMII), A host computer connected to "Port A" and a Peripheral instrument connected to…
Hello Chaitanya,
The PHY address is used for communication between MAC and PHY. In an environment where multiple PHYs are used, having different PHY address helps to selectively communicate with the desired PHY.
Having multiple RJ45 connectors on…
Hello,
Applications Note AN-1469 (page 14) lists the necessary turns ratio of the magnetics as 1:1.
Proper operation of the DP83849I can not be guaranteed if magnetics are used which
do not meet the recommended specifications.
Thanks,
John
Other Parts Discussed in Thread: DP83865 I posted this question into industrial interface forum,
and later, I found Ethernet forum. so, I posted it again.
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I have…
Part Number: DP83849ID
Dears,
I used DP83849I DVS with AVAGO optical transceiver module, If I connected the RX of A, and whether I connected the TX of A or B,the LED of the module A will on.Module B is the same as A.occasionally sometimes ,the device…
Part Number: DP83849IF Hi,
have been asked about adding 10/100 Mb ethernet transport between a couple of units, the connection between wich can be only by means of fiber optics.
I'm evaluating having a standard, commercial router with SFP cage at…
Rick,
My answers are below in a Q & A format.
Q1: At what level should TRSTn be held when the part is in operational mode and the JTAG is not being used?
A1: Holding TRSTn low during operational mode is the recommended approach. The DP83849 can…
Greetings -
Please also review the DP83849I and DP83849IF datasheets. These two parts add the flexible port switching feature that maybe key for your application.
It is not totally clear on what you are describing as your application, is it a extender…
Other Parts Discussed in Thread: TMS320C6745 , DP83849I , CDCV304 I have an application that will use two TMS320C6745 DSPs. I want to have a 10/100 ethernet interface to each DSP. I am looking at using the DP83849 dual Ethernet PHY. Would it be feasible…
We are going to use DP83849IVS in our design which is a dual-port PHY chip.
It is having one MDC/MDIO pairs for both the PHYs inside the chip.
In our design, we have two MACs which will be trying to access the PHY chips through the common MDC…
