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Lpc2000

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RE: [lpc2000] Re: Who can tell me the relationship between XCLK and CCLK?

2005-09-07 by Mark Crow

Yes.
  -----Original Message-----
  From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com]On Behalf Of
fangneu
  Sent: Tuesday, September 06, 2005 9:37 PM
  To: lpc2000@yahoogroups.com
  Subject: [lpc2000] Re: Who can tell me the relationship between XCLK and
CCLK?


  I get it.
  In the register of VPBDIV you can set the XCLKDIV just as VPBDIV.
  So XCLK can set as CCLK/1,CCLK/2 or CCLK/4.
  Is it right?


  --- In lpc2000@yahoogroups.com, Samuel <emddjava@y...> wrote:
  > If you place a 10Mhz crystal to the XTAL, the CCLK
  > will be 60Mhz, it in the datasheet. then of course you
  > have your pheripheral clock...
  >
  >
  > --- lpc2100_fan <lpc2100_fan@y...> wrote:
  >
  > > Mark,
  > >
  > > if I am not mistaken VPBDIV is there to divide CCLK
  > > into PCLK
  > > (Peripheral Clock).  XCLK is the external clock,
  > > which is identical to
  > > CCLK if the PLL is not used. Otherwise CCLK = XCLK *
  > > PLL factor
  > >
  > > Nevertheless I could not find XCLK either in the
  > > data sheet or the
  > > Users Manual, how did you come up with these terms?
  > >
  > > Bob
  > >
  > > --- In lpc2000@yahoogroups.com, "Mark Crow"
  > > <mcrow@p...> wrote:
  > > > Look at the LPC2000 user manual and look up the
  > > VPBDIV register.
  > > >   -----Original Message-----
  > > >   From: lpc2000@yahoogroups.com
  > > [mailto:lpc2000@yahoogroups.com]On
  > > Behalf Of
  > > > fangneu
  > > >   Sent: Monday, September 05, 2005 11:50 PM
  > > >   To: lpc2000@yahoogroups.com
  > > >   Subject: [lpc2000] Who can tell me the
  > > relationship between XCLK
  > > and CCLK?
  > > >
  > > >
  > > >   Thank you very much and I wish that somebody can
  > > help me!!
  > > >
  > >
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