> well, if you do not want to use the excellent hardware IIC that is there (if you use
> codearchitect ( www.esacademy.com )so is the software) Then there are several
> appnotes on the Philips website.

I am writing the complete application in assembly.
(It will just fit into the 8k flash, BTW.)

I do want to use the I2C hardware - not for saving CPU ressources, but for
saving code size. Why should I do bit-banging when a few CLR/SETB operations
on STA/STO/AA, and SI polling also do?

> Polling IIC has the disadvantage that you have to disable all interrupts while polling.

Why? I don't see this from the manual.

Tilmann