There is an other problem with the i2cslave:

1. When the i2caddress is specifiead as constant (i2caddress CON $0F) it works perfect.

2. When bulding the address via a variable, it doesnt work:
...
i2caddress VAR byte
...
i2caddress = $0F

I need this because i build it from the status of four bits of Port A

Any idea?

Regards,
Ralf