IrDA on EM1000 or other Tibbo devices

I've never worked with Irda, so my options are only common sense.

I would use external logic to do this.
First connect a encoder/decoder chip to a serial port of the em1000 then connect a optical module to the chip.

You can use microchip MCP2150 or MPC2140 if your going to need IRDA compatibility, to connect to a pc or pda.

Use MCP2120, or MCP2122 if you just need to link to embebbed aplications that can use the same encoder/decoder.

Afterwards, Just connect it to a Sharp, Vishay, or Agilent Optical Module, and send and receive your data thru the serial port on the Em1000 just like any other application.

Hope it has helped you.