Re: TStik Multiplier and crystal speed
Bruce Boyes <[email protected]>
| Newsgroups | gmane.comp.hardware.microcontrollers.tini |
|---|---|
| Message-ID | <[email protected]> |
At 07:24 PM 3/22/2004 +0100, Samuel Fruchter wrote: >Hi, > >I saw that the TStik has a 75 MHz capable cpu. The 80C400 is *capable* of 75 Mhz with 10 nsec SRAM for code and data. This memory is not practical as NVRAM (you'd need a motorcycle battery or a stack of D cells). There is no Flash memory fast enough, so such a system would not currently be able to use the standard TINIOS. Current available SRAM is 55 or 70 nsec access time, flash is 70 or 90 nsec. So the C400 is *capable* of faster speeds but in all but specialized cases it isn't practical because there is no adjustment for the speed of code memory, and there is no practical high speed code memory. In other words, it's marketing vs reality. Regards Bruce >Why then the speed is only 29.4 MHz : multiplier is set to only 2 and the >crystal speed is 14.7 MHz (instead of 18.432 in the TINI) ? > > >Sam > > >_______________________________________________ >TINI mailing list >TINI-6tN4nzCoH/[email protected] >To UNSUBSCRIBE, edit your profile, or see list archives: >http://lists.dalsemi.com/mailman/listinfo/tini ------- WWW.SYSTRONIX.COM ---------- Real embedded Java and much more www.jrealtime.com and www.tstik.com +1-801-534-1017 Salt Lake City, USA _______________________________________________ TINI mailing list TINI-6tN4nzCoH/[email protected] To UNSUBSCRIBE, edit your profile, or see list archives: http://lists.dalsemi.com/mailman/listinfo/tini