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CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
User’s Manual U16898EJ6V0UD
98
6.4
Operation of 16-bit Timer/Event Counter 00
6.4.1
Interval timer operation
Setting 16-bit timer mode control register 00 (TMC00) and capture/compare control register 00 (CRC00) as shown
in Figure 6-10 allows operation as an interval timer.
Setting
The basic operation setting procedure is as follows.
<1>
Set the CRC00 register (see Figure 6-10 for the set value).
<2>
Set any value to the CR000 register.
<3>
Set the count clock by using the PRM00 register.
<4>
Set the TMC00 register to start the operation (see Figure 6-10 for the set value).
Caution
Changing the CR000 setting during TM00 operation may cause a malfunction. To change the
setting, refer to 6.5 Cautions Related to 16-bit Timer/Event Counter 00 (17) Changing compare
register during timer operation.
Remark
For how to enable the INTTM000 interrupt, see CHAPTER 12 INTERRUPT FUNCTIONS.
Interrupt requests are generated repeatedly using the count value set in 16-bit timer capture/compare register 000
(CR000) beforehand as the interval.
When the count value of 16-bit timer counter 00 (TM00) matches the value set to CR000, counting continues with
the TM00 value cleared to 0 and the interrupt request signal (INTTM000) is generated.
The count clock of the 16-bit timer/event counter can be selected using bits 0 and 1 (PRM000, PRM001) of
prescaler mode register 00 (PRM00).
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