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● Types of valid edge in event count mode and selection method
Set by the trigger selection bits (TMCSR.MOD[1:0]).
Three valid edges are provided.
Setting MOD2 has no meaning regardless of the value of "0" or "1".
● Method to set TIN pin to external event input pin or external trigger input pin
Write "0" to the data direction specification bit (DDR7.P73).
Pin
TIN0 pin
● Method to generate start trigger
• Method to generate software trigger
Set by the software trigger bit (TMCSR.TRG).
Writing "1" to the software trigger bit (TGR) generates the trigger.
To enable and start operation at the same time, set the timer counter enable bit (TMCSR:
CNTE) and software trigger bit (TMCSR.TRG) simultaneously.
• Method to generate external trigger
When the edge specified by the trigger selection bits is input to the trigger pin corresponding
to each reload timer, the trigger occurs.
Reload timer
Valid edge
Rising edge
Falling edge
Both edges
Port 7 direction register (DDR7)
Timer
CHAPTER 14 16-BIT RELOAD TIMER
Trigger selection bits (MOD1, MOD0)
Set to "01
Set to "10
Set to "11
Control bit
Data direction bit (P73)
Trigger pin
TIN0
"
B
"
B
"
B
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