Home » Archimedes archive » Acorn User » AU 1997-03 B.adf » Regulars » RTR/!SerialCom/Help/Com9
RTR/!SerialCom/Help/Com9
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
Tape/disk: | Home » Archimedes archive » Acorn User » AU 1997-03 B.adf » Regulars |
Filename: | RTR/!SerialCom/Help/Com9 |
Read OK: | ✔ |
File size: | 0A00 bytes |
Load address: | 0000 |
Exec address: | 0000 |
File contents
Draw� Draw * ��� N � 8 Trinity.Medium Corpus.Medium Trinity.Bold X �? � � @ X ` �[ �� ��� 2 2 @V �a Command 9 � * � N , * � N , ���\! 1 \F 0 Trinity.Medium 12 \F 1 Corpus.Medium 12 \0\AD/\L12 Timer / Counter\ \ The timer counter is a 16 bit wide and consists of a timer register and a reload register. The timer register counts up and when it overflows, that is exceeds &FFFF, it is reloaded from the reload register. This can also be accompanied by the execution of the command stored in memory location 2 if the timer interrupt is enabled. The timer register can be either clocked by the internal clock at 1uS or from an external input, bit 7 on port A. In addition bit 5 on port A can be used to enable or disable the counter. \ \ See Command 10 for a discription of the register bits. � H ��� >