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Chapter 35 Free-Run Timer
7.Q & A
Use interrupt request enable bit (TCCS.IVFE) to enable interrupts.
Use interrupt request bit (TCCS.IVF) to clear interrupt requests.
7.8 How do I stop the free-run timer?
Set with count operation bit (TCCS.STOP).
See “7.3 How do I enable / disable the count operation of the free-run timer? (Page No.742)”.
7.9 How are the free-run timer assigned to ICU and OCU?
• The value of Free-run timer 0 can be used as capture data by ICU0 and ICU1
• The value of Free-run timer 1 can be used as capture data by ICU2 and ICU3
• The value of Free-run timer 2 can be used as compare data by OCU0 and OCU1
• The value of Free-run timer 3 can be used as compare data by OCU2 and OCU3
• The value of Free-run timer 4 can be used as capture data by ICU4 and ICU5
• The value of Free-run timer 5 can be used as capture data by ICU6 and ICU7
• The value of Free-run timer 6 can be used as compare data by OCU4 and OCU5
• The value of Free-run timer 7 can be used as compare data by OCU6 and OCU7
Interrupt request permission bit (IVFE)
Disable interrupts Set to “0”
Enable interrupts Set to “1”
Interrupt request bit (IVF)
Clear interrupt requests Write “0”