topic Clock Explanations in S12 / MagniV Microcontrollers https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Clock-Explanations/m-p/131117#M1488 <HTML><HEAD></HEAD><BODY><DIV>Is there a document that explains clock generation in the MC9S12E128? I am using a 16MHZ Oscillator and am confused about what to expect for the bus clk, pclk, eclk, system clock. The division of the oscillator into the various clocks is what I don't understand.</DIV><DIV>&nbsp;</DIV><DIV>If you have a 16MHZ oscillator, i.e, it says 16MHZ on the side of the can, is the system osc 16 or 8MHZ?</DIV><DIV>&nbsp;</DIV><DIV>Thanks,</DIV><DIV>Eagle Beak</DIV></BODY></HTML> Sat, 23 Sep 2006 01:07:35 GMT EagleBeak 2006-09-23T01:07:35Z Clock Explanations https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Clock-Explanations/m-p/131117#M1488 <HTML><HEAD></HEAD><BODY><DIV>Is there a document that explains clock generation in the MC9S12E128? I am using a 16MHZ Oscillator and am confused about what to expect for the bus clk, pclk, eclk, system clock. The division of the oscillator into the various clocks is what I don't understand.</DIV><DIV>&nbsp;</DIV><DIV>If you have a 16MHZ oscillator, i.e, it says 16MHZ on the side of the can, is the system osc 16 or 8MHZ?</DIV><DIV>&nbsp;</DIV><DIV>Thanks,</DIV><DIV>Eagle Beak</DIV></BODY></HTML> Sat, 23 Sep 2006 01:07:35 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Clock-Explanations/m-p/131117#M1488 EagleBeak 2006-09-23T01:07:35Z Re: Clock Explanations https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Clock-Explanations/m-p/131118#M1489 <HTML><HEAD></HEAD><BODY>If you do not enable PLL, the Bus clock will be 8MHz. If you enable PLL, then you can take it up to 25MHz or Lower as you desire. You will find the details in Clock &amp; Reset Generators PDF that can be found in the Freescale website pertaining to your processor.<BR /><BR />Good Luck<BR />~Sujith</BODY></HTML> Tue, 26 Sep 2006 01:01:43 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/Clock-Explanations/m-p/131118#M1489 pIx 2006-09-26T01:01:43Z