Another noob question- Input output pins & MII/GPSI or Host/DTE

[Ant_Magma]

Another couple of level 1 questions, hope you guys bear with me

1) I'm trying to connect my Belfuse powerline module and my Ethernet
transceiver (Micrel's KS8721B). Do i connect input type pins to input
type pins and output type pins to output type pins?

For example my TX0~3 of my powerline module, do i connect to the TX0~3
of KS8721B or do i have to cross it and connect it to the RX of the
ethernet PHY?

2) The Belfuse powerline module has 2 types of connection interfaces
listed on the datasheet:

www.geocities.com/Antonio_Magma/0804_5000_03_04ext.pdf

MII/GPSI & Host/DTE. I understand to communicate with the Ethernet
transceiver i should use the MII interface. However, can i also treat
the KS8721B as a DTE and use the 2nd one?

The reason is i tried requesting application notes and reference
designs for the powerline modules and they said none was available. So,
due to my inexperience there are a couple of pins which i do not know
how to connect between the powerline module and the KS8721B.

However, with the Host/DTE interface based on the rather limited
description on the datasheet i was to figure out how to connect or what
to do with most of the pins.

I understand to answer this question would require you guys to read the
datasheet and might be alot to ask. But i hope anyone could give me
some pointers. Thanks!

 

[Ant_Magma]

Btw, is it normal for a company to produce something and do not produce
any reference designs and application notes to help the user implement
their product?

Or do they only give it to big companies who order a few millions
pieces from them and refrain from giving it to the 'little users' like
me?

 

[Rich Grise]

The reason is i tried requesting application notes and reference
designs for the powerline modules and they said none was available.

Then, take it back and demand your money back, because they sold it
to you under false pretenses. If they won't even tell you the pinout
of their own product, then there's something very wrong with that
vendor.

Good Luck!
Rich

 

[Ant_Magma]

Oh, they did give me the pin out descriptions, in their flimsy 14 page
only datasheet. The thing is they say they do not have reference
designs for their product. Are they lying?

 

[Rich Grise]

Oh, they did give me the pin out descriptions, in their flimsy 14 page
only datasheet. The thing is they say they do not have reference
designs for their product. Are they lying?

Maybe I don't know what "reference design" means. Do you mean like
those example circuits like in the LM317 data sheet? Maybe they
think you want them to do your homework for you. Have you asked
them if there are any "application notes?"

And please bottom-post - it's the accepted convention around here.

Good Luck!
Rich

 

[Ant_Magma]

What you mean by bottom post?

Yes, i requested for reference designs, application notes etc.

How about regarding to my problem, any ideas?