<TR><TD VALIGN="TOP" WIDTH=45></TD><TD VALIGN="TOP" WIDTH=66></TD><TD VALIGN="TOP" WIDTH=454><FONT SIZE=3>b28: set - this is a one-shot interrupt </FONT>
<TD VALIGN="TOP" WIDTH=454><FONT SIZE=3>interrupt rate in 0.5uS (Timer1 ticks), minimum is 0.5555ms, maximum is &FFFFFFF. 0 cancels the schedule </FONT>
</TD><TD VALIGN="TOP" WIDTH=473><FONT SIZE=3>returns frame rate identifier if R2=-1 on entry, otherwise all registers preserved unless an error is returned.</FONT>
<TR><TD VALIGN="TOP" WIDTH=73><FONT SIZE=3>bit30: </FONT></TD><TD VALIGN="TOP" WIDTH=482><FONT SIZE=3>set: this is lowest frame rate possible </FONT>
</TD></TR>
<TR><TD VALIGN="TOP" WIDTH=73><FONT SIZE=3>bit29: </FONT></TD><TD VALIGN="TOP" WIDTH=482><FONT SIZE=3>set: this is highest frame rate possible </FONT>
</TD></TR>
<TR><TD VALIGN="TOP" WIDTH=73><FONT SIZE=3>bit28: </FONT></TD><TD VALIGN="TOP" WIDTH=482><FONT SIZE=3>set: this is not a rate, but fully variable from 0.5 to 1800fps </FONT>
<TR><TD VALIGN="TOP" WIDTH=45></TD><TD VALIGN="TOP" WIDTH=38></TD><TD VALIGN="TOP" WIDTH=169></TD><TD VALIGN="TOP" WIDTH=169><FONT SIZE=3>5: Set clock R3 = Time data word </FONT>
<TR><TD VALIGN="TOP" WIDTH=73><FONT SIZE=3>bit30: </FONT></TD><TD VALIGN="TOP" WIDTH=397><FONT SIZE=3>set: this is lowest frame rate possible </FONT>
</TD></TR>
<TR><TD VALIGN="TOP" WIDTH=73><FONT SIZE=3>bit29: </FONT></TD><TD VALIGN="TOP" WIDTH=397><FONT SIZE=3>set: this is highest frame rate possible </FONT>
</TD></TR>
<TR><TD VALIGN="TOP" WIDTH=73><FONT SIZE=3>bit28: </FONT></TD><TD VALIGN="TOP" WIDTH=397><FONT SIZE=3>set: this is not a rate, but continuously variable from 0.5 to 1800fps </FONT>
</TD></TR>
<TR><TD VALIGN="TOP" WIDTH=73><FONT SIZE=3>bit27: </FONT></TD><TD VALIGN="TOP" WIDTH=397><FONT SIZE=3>set: count down rather than (see SWI _ClockControl:6) </FONT>