R01UH0823EJ0100 Rev.1.00
Page 585 of 1823
Jul 31, 2019
RX23W Group
23. Multi-Function Timer Pulse Unit 2 (MTU2a)
23.4
Interrupt Sources
23.4.1
Interrupt Sources and Priorities
There are three interrupt sources; the TGR input capture/compare match, the TCNT counter overflow, and the TCNT
counter underflow. Each interrupt source has its own enable/disable bit, allowing the generation of interrupt request
signals to be enabled or disabled individually.
When an interrupt source is detected, an interrupt is requested if the corresponding enable/disable bit in the TIER register
is set to 1.
Relative channel priorities can be changed by the interrupt controller; however the priority within a channel is fixed. For
details, refer to
section 15, Interrupt Controller (ICUb)
lists the MTU interrupt sources.
Table 23.54
MTU Interrupt Sources (1)
Note:
This table lists the initial state immediately after a reset. The relative channel priorities can be changed by the interrupt
controller.
Channel
Name
Interrupt Source
DMAC
Activation
DTC
Activation
Priority
MTU0
TGIA0
MTU0.TGRA input capture/compare match
Possible
Possible
High
TGIB0
MTU0.TGRB input capture/compare match
Not possible
Possible
TGIC0
MTU0.TGRC input capture/compare match
Not possible
Possible
TGID0
MTU0.TGRD input capture/compare match
Not possible
Possible
TCIV0
MTU0.TCNT overflow
Not possible
Not possible
TGIE0
MTU0.TGRE compare match
Not possible
Not possible
TGIF0
MTU0.TGRF compare match
Not possible
Not possible
MTU1
TGIA1
MTU1.TGRA input capture/compare match
Possible
Possible
TGIB1
MTU1.TGRB input capture/compare match
Not possible
Possible
TCIV1
MTU1.TCNT overflow
Not possible
Not possible
TCIU1
MTU1.TCNT underflow
Not possible
Not possible
MTU2
TGIA2
MTU2.TGRA input capture/compare match
Possible
Possible
TGIB2
MTU2.TGRB input capture/compare match
Not possible
Possible
TCIV2
MTU2.TCNT overflow
Not possible
Not possible
TCIU2
MTU2.TCNT underflow
Not possible
Not possible
MTU3
TGIA3
MTU3.TGRA input capture/compare match
Possible
Possible
TGIB3
MTU3.TGRB input capture/compare match
Not possible
Possible
TGIC3
MTU3.TGRC input capture/compare match
Not possible
Possible
TGID3
MTU3.TGRD input capture/compare match
Not possible
Possible
TCIV3
MTU3.TCNT overflow
Not possible
Not possible
MTU4
TGIA4
MTU4.TGRA input capture/compare match
Possible
Possible
TGIB4
MTU4.TGRB input capture/compare match
Not possible
Possible
TGIC4
MTU4.TGRC input capture/compare match
Not possible
Possible
TGID4
MTU4.TGRD input capture/compare match
Not possible
Possible
TCIV4
MTU4.TCNT overflow/underflow
Not possible
Possible
Low