ENC28j60 or CS8900A

Hi,

I have a microcontroller (ATMega128) and I want to connect it to
internet.
At first I need a ethernet controller(MAC & PHY ethernet).
I have known some ICs: ENC28j60, CS8900 (3v), RTL8019A...

I think CS8900A and ENC28j60 are better for my project. but I don't know
which of them is better ?

Is there anybody who has experience with them?

As I am in hurry, I will be so thankful if you reply me as soon as
possible.

-thanks. 

rf_xport =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0:
> I think CS8900A and ENC28j60 are better for my project. but I don't know
> which of them is better ?
>
> Is there anybody who has experience with them?

I'm always puzzled when someone ask "which is better" without to define
what "better" means,as "better" is very subjective category. For
instance my wife thhnks that soda is better than beer but I don't think
so ;)
Same is here -  it may be better for your application to use ENC28J60
which could be interfaced with fewer microcontroller ports than
CS8900A, but in other hand it may be better in your application to use
CS8900A which needs only 80mA instead ENC28J60 which take 200 mA, so
you tell me which better is better in your application?
Both Ethernet controllers will do the job fine. If I would use ENC28J60
would never use ATmega128 though as Microchip already wrote briliant
TCP-IP royality free stack which supports ENC28J60 and allow it to be
interfaced to any PIC with some amount of memory.
The stack is written in very modullar approach and different services
can be easily add/removed so you can configure it as HTTP, FTP, etc
server and write e-mails, store dynamic web info in external serial
flash memory or have all PIC resources managable though web service
i=2Ee. Microchip has done significant part of your software job and it
cost you nothing! I don't know something similar to exist for AVRs -
there are some open source projects like the Ethernut but it requires
much more hardware resources and it's not so flexible as Microchip
stack.
To setup web enabled application with Microchip stack is peace of cake.

We made two projects with ENC28J60 and both worked well from the first
time: http://www.olimex.com/dev/pic-mini-web.html and
http://www.olimex.com/dev/pic-web.html
so if you want to add quick and dirty ethernet connectivity to your
project ENC28J60 + some cheap PIC like PIC18F25J10 ($1.50 for 100+) is
the easy route.

Best regards
Tsvetan
---
PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb)
Development boards for ARM, AVR, PIC, MAXQ2000 and MSP430
(http://www.olimex.com/dev)

Thanks for your answer.

ENC28j60 is more suitable for me than CS8900, because it has SPI.

I shall use ATMega128(unfortunately, I can't use your recommended micro
controller).
 
I have bought AVR embedded Internet Toolkit. It has modular TCP/IP stack
for AVR family. This TCP/IP stack has low level interface drivers for
CS8900 ethernet controller. But I want to use ENC28j60.

Is it possible to delete this file and replaced it with interface driver
for ENC28j60 ?

AS I am in hurry to make my decision, I wil be so thankful to reply me as
soon as possible.

-thanks

If your boss sees these messages, he might just hire the guy that
answers your question, because at that point, he doesnt need you.
Usually when time is a factor, the price goes up. Certainly there are
many AVR consultants that can make a CS8900 do any internet protocol
you have on the wire. Just give him a spec.