Hello, I think I visited all related sites by now, but still I don't know: - how to install my new device, the Atmel AT87C5112. I've read the "how to install"-onlinehelp, but still: which ones of the given options exactly do i have to include under "CPU=" (http://www.keil.com/support/docs/1421.htm), and where to put the downloaded header- and .inc-file?. - what to input into the oscillator-freq. option when i want to use the X2-feature. Should be still 33MHz in maxiumum, or is it now 66MHz? The given µC feeds a 10 bit DA-Converter. Are there any program-examles (I'm using µVision)? Are there any preferences regarding the output-ports(I wanted to keep port0 and port2 free for having the option of using external flash, and I'm using the UART-interface)? Thanks for helping Michael