please dont rip this site

SX Embedded Controller Register

RTCC (Real Time Clock Counter)

Date Code(s): 9815, 9818, 9819, 9825, 9827, 9829, 9830, 9837, 9838, 9841, 9843, 9844, 9848: In Turbo mode, if the Prescaler is not assigned to the RTCC, the RTCC will not sense any external events. If the Prescaler is assigned to the RTCC, the RTCC works as an external event counter. With the Prescaler assigned to the WDT (Watchdog Timer), the RTCC will only function as an internal timer clocked internally and will ignore any external events.

RTCC is a Read/Modify/Write register, just like the IO ports. Eberhard Haug says:

... and don\'t use any TEST RTCC to check RTCC for zero e.g., because TEST will reset the RTCC prescaler like any MOV to RTCC. As a result it could happen that your 4-byte counter never counts correctly. TEST RTCC is equivalent to MOV RTCC,RTCC. If you like to check RTCC just use a MOV W,RTCC etc.

See Interrupts for more on how to setup the RTCC

The SX literature says that the dual stage synchronizer is _always_ activated on RTCC. If that is so, then the RTCC may actually be counting two LESS pulses than have actually been presented on the input pin.

Interested:

See also:


file: /Techref/scenix/rtcc.htm, 2KB, , updated: 2008/4/5 16:29, local time: 2024/3/28 09:02,
TOP NEW HELP FIND: 
54.243.2.41:LOG IN

 ©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF="http://www.sxlist.com/Techref/scenix/rtcc.htm"> SX Embedded Controller Register</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.


Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

 

Welcome to sxlist.com!


Site supported by
sales, advertizing,
& kind contributors
just like you!

Please don't rip/copy
(here's why

Copies of the site on CD
are available at minimal cost.
 

Welcome to www.sxlist.com!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .