TCP/IP Chip!

> Is there any chip available with serial interface (three wires) for
> TCP/IP connectivity?

TCP/IP implemented in hardware with I2C interface:
http://www.iinchip.com/wiznet/product_assp.html

Regards,
Richard.

+ http://www.FreeRTOS.org
+ http://www.SafeRTOS.com
for Cortex-M3, ARM7, ARM9, HCS12, H8S, MSP430
Microblaze, Coldfire, AVR, x86, 8051 & PIC18 * * * *

"Ali" <abdulrazaq@gmail.com> skrev i meddelandet 
news:1157509999.113606.323820@i3g2000cwc.googlegroups.com...
>
> Is there any chip available with serial interface (three wires) for
> TCP/IP connectivity?
>
>
> ali
>

Can build one with the AT91SAM7X128/256 and a TCP/IP stack.
www.freertos.org

-- 
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,
or may not be shared by my employer Atmel Nordic AB 

Ali wrote:
> 
> 
> The device is stationary so power consumption is not an issue here,
> well guys let me elaborate my problem. We want to provide a web
> interface of our RFID reader, at moment it is providing only RS232
> interface for hosts. From reader to host the data will be always less
> then 13 bytes and from host to reader it would be even less than that.
> So I'm not looking for super higher data rates with encryption etc..
> 
> 
>>Of course, if he only has 3 pins to  spare, there is the small question of whether he's >got resources for an entire IP stack.
> 
> 
> Yes that is an issue here, we never though that we would be having web
> interface of our gadget but now management wants to add that as well.
> We are lacking I/O pins from our MCU but maximum 6 to 7 pins can be
> spared for that.  As  Lantronix XPort and Digi ME only requires 5
> fundamental pins [
> http://www.semiconductorstore.com/images/Items/Lantronix/XPort_blockdiagram.jpg
> ]  ofcourse except power and ground but its kind of expensive solution
> to us.
> 
> 
> ali
> 

You will need a rudimentary HTTP server on top of the
TCP/IP stack. I doubt that the plain TCP/serial interface
provides the proper sequencing of request and response
disconnects for Web service.

Also, there's a need for storing the Web pages themselves
somewhere on the system, either in the converter unit
or the client behind the serial connection.

Been there - done that.

-- 

Tauno Voipio
tauno voipio (at) iki fi

"Tauno Voipio" <tauno.voipio@INVALIDiki.fi> wrote in message
news:ikVLg.198$Xg2.142@read3.inet.fi...
> Ali wrote:
> > Yes that is an issue here, we never though that we would be having web
> > interface of our gadget but now management wants to add that as well.
> > We are lacking I/O pins from our MCU but maximum 6 to 7 pins can be
> > spared for that.  As  Lantronix XPort and Digi ME only requires 5
> > fundamental pins [
> >
http://www.semiconductorstore.com/images/Items/Lantronix/XPort_blockdiagram.jpg
> > ]  ofcourse except power and ground but its kind of expensive solution
> > to us.
> >
> >
> > ali
> >
>
> You will need a rudimentary HTTP server on top of the
> TCP/IP stack. I doubt that the plain TCP/serial interface
> provides the proper sequencing of request and response
> disconnects for Web service.

The Lantronix devices have a webserver built in. You can load web pages into
the device.

Meindert

Ali wrote:
> Is there any chip available with serial interface (three wires) for
> TCP/IP connectivity?
>
>
> ali

The Tibbo EM100 module uses 5V level serial async interface i.e. RX, TX
and GND.

take a look at www.tibbo.com

"Ali" <abdulrazaq@gmail.com> skrev i meddelandet
news:1157509999.113606.323820@i3g2000cwc.googlegroups.com...
>
> Is there any chip available with serial interface (three wires) for
> TCP/IP connectivity?
>
>
> ali
>

Can build one with the AT91SAM7X128/256 and a TCP/IP stack.
www.freertos.org

-- 
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,
or may not be shared by my employer Atmel Nordic AB