Rohm LAPIS SEMICONDUCTOR ML620Q503, User Manual

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ML620Q503/Q504 User's Manual
Chapter 9 Function Timer(FTM)
FEUL620Q504 9–42
9.3.7 Event/Emergency Stop Trigger Control
9.3.7.1 Trigger Signal
FTMn can receive two types of trigger signal: event trigger and emergency stop trigger.
The event trigger is used as counter start/stop or trigger of capture. EXI0-7 (external interrupts), TIMER0-7
interrupts, or FTM0-3 triggers can be selected as the trigger source.
The emergency stop trigger is used to stop the timer operation. It stops the counter and sets output
FTMnP/FTMnN to L. CMP0TGO/CMP1TGO interrupt, EXI0TGO, or EXI4TGO can be selected as the trigger
source.
The analog filter output of the interrupt controller is connected to the EXI0-7TGO input.
The output of the sampling controller in the comparator is connected to the input from CMP0/1TGO.
The sampling can be selected using the comparator register.
The timer interrupt source and the FTM trigger source are set using the register of each timer.
Figure 9-7 Input Path of Trigger Signal
FTM Interrupt controller
Analog
filter
EXI*TGO
Trigger for
emergency stop
Event trigger
for start/stop
CMP
Logic
filter
sampling by timer clock
TIMER
FTM
CMP*TGO
TM*INT
FTM*TGO