l.s., I want to use the In System/Application Programming feature of the 89c66x by using the i2c protocol. Normally this can be performed by RS232 and WinISP of Philips, however...I want to download my new software by using the i2c. The boot code is programmed in the 89c66x using a parallel programmer and therefor has to be changed. Any ideas or example code? thanks, ***.