8-bit MicrocontrollersのトピックThe above issue is with MC68HC908 https://community.nxp.com/t5/8-bit-Microcontrollers/PLL-issue-in-MC68HC980/m-p/206932#M17474 <HTML><HEAD></HEAD><BODY></BODY></HTML> Thu, 13 Aug 2009 11:46:33 GMT Sevak 2009-08-13T11:46:33Z PLL issue in MC68HC980 https://community.nxp.com/t5/8-bit-Microcontrollers/PLL-issue-in-MC68HC980/m-p/206931#M17473 <HTML><HEAD></HEAD><BODY><P><SPAN style=": ; font-size: 4; font-family: 'times new roman,times';">Hi,</SPAN></P><P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I am facing a problem with PLL. In Normal operation after stabilising crystal clock i am switching to VCO clock as a base clock. After this, I hope that LOCK bit should not toggle as crystal frequency is stabilised. But in practical scenario i am observing that this LOCK bit is toggling.</P><P>&nbsp;</P><P>Can anyone please tell me why this is happening? Will VCO frequency move out of specified range in normal operation?&nbsp;</P></BODY></HTML> Thu, 13 Aug 2009 11:43:00 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/PLL-issue-in-MC68HC980/m-p/206931#M17473 Sevak 2009-08-13T11:43:00Z The above issue is with MC68HC908 https://community.nxp.com/t5/8-bit-Microcontrollers/PLL-issue-in-MC68HC980/m-p/206932#M17474 <HTML><HEAD></HEAD><BODY></BODY></HTML> Thu, 13 Aug 2009 11:46:33 GMT https://community.nxp.com/t5/8-bit-Microcontrollers/PLL-issue-in-MC68HC980/m-p/206932#M17474 Sevak 2009-08-13T11:46:33Z