YR0K42378FC000BA Renesas Electronics America, YR0K42378FC000BA Datasheet - Page 651
YR0K42378FC000BA
Manufacturer Part Number
YR0K42378FC000BA
Description
KIT EVAL FOR H8S/2378
Manufacturer
Renesas Electronics America
Series
H8®r
Type
MCUr
Datasheet
1.YR0K42378FC000BA.pdf
(1208 pages)
Specifications of YR0K42378FC000BA
Contents
Board
For Use With/related Products
H8S/2378
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 651 of 1208
- Download datasheet (8Mb)
11.4
11.4.1
Each channel has a TCNT and TGR register. TCNT performs up-counting, and is also capable of
free-running operation, periodic counting, and external event counting.
Each TGR can be used as an input capture register or output compare register.
Counter Operation: When one of bits CST0 to CST5 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.
1. Example of count operation setting procedure
Figure 11.2 shows an example of the count operation setting procedure.
Select output compare register
Select counter clearing source
Select counter clock
Operation selection
<Periodic counter>
Operation
Basic Functions
Periodic counter
Start count
Set period
Figure 11.2 Example of Counter Operation Setting Procedure
[1]
[2]
[3]
[4]
[5]
<Free-running counter>
Free-running counter
Start count
Rev.7.00 Mar. 18, 2009 page 583 of 1136
Section 11 16-Bit Timer Pulse Unit (TPU)
[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 counter
operation.
REJ09B0109-0700
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