Section 17 16-Bit Timer Pulse Unit (TPU)
Rev. 2.00 Mar 09, 2006 page 710 of 906
REJ09B0292-0200
17.4.2
Basic Functions
Counter Operation:
When one of bits CST0 to CST2 is set to 1 in TSTR, the TCNT counter for
the corresponding channel starts counting. TCNT can operate as a free-running counter, periodic
counter, and so on.
•
Example of count operation setting procedure
Figure 17.6 shows an example of the count operation setting procedure.
Select counter clock
Operation selection
Select counter clearing source
Periodic counter
Set period
Start count operation
<Periodic counter>
1
2
4
3
5
Free-running counter
Start count operation
<Free-running counter>
5
1
2
3
4
5
Select the counter
clock with bits
TPSC2 to TPSC0 in
TCR. At the same
time, select the
input clock edge
with bits CKEG1
and CKEG0 in
TCR.
For periodic counter
operation, select
the TGR to be used
as the TCNT
clearing source with
bits CCLR2 to
CCLR0 in TCR.
Designate the TGR
selected in [2] as an
output compare
register by means
of TIOR.
Set the periodic
counter cycle in the
TGR selected in (2).
Set the CST bit in
TSTR to 1 to start
the count operation.
Select output compare register
Figure 17.6 Example of Counter Operation Setting Procedure
Содержание SH7616
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Страница 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Страница 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Страница 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Страница 662: ...Section 14 Serial Communication Interface with FIFO SCIF Rev 2 00 Mar 09 2006 page 636 of 906 REJ09B0292 0200 ...
Страница 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Страница 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Страница 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Страница 935: ...SH7616 Hardware Manual ...