1. to select the suitable source about the oscillation circuitery when you are using a resonator 2. to set the nominal frequency on other conditions. Concerning your question you can select HS:8-16MHz or MS:4-8MHz. Luca
But isn't it true that since the oscillator driving current is less when you select the option MS:4-8MHz instead of HS:8-16MHz. In that case though you can use both it is preferable to use MS:4-8MHz. Thanks Ansh[ This message was edited by: Ansh on 21-07-2004 09:26 ]