R01UH0822EJ0100 Rev.1.00
Page 442 of 1041
Jul 31, 2019
RX13T Group
19. Multi-Function Timer Pulse Unit 3 (MTU3c)
(m) Counter Clearing by Another Channel
In complementary PWM mode, MTU3.TCNT, MTU4.TCNT, and TCNTSA can be cleared by another channel source
when a mode for synchronization with another channel is specified through the TSYRA register and synchronous
clearing is selected with MTU3.TCR.CCLR[2:0] bits.
illustrates an example of this operation.
Use of this function enables a counter to be cleared and restarted through an external signal.
Figure 19.62
Counter Clearing Synchronized with Another Channel (MTU3 and MTU4)
TCNTSA
MTU1
MTU1.TCNT
MTU3.
TCNT
MTU4.
TCNT
Synchronous counter clearing by MTU1 input capture A
MTU3.TGRA
TCDRA
TDDRA
0000h
input capture A
MTU3.TCNT
MTU4.TCNT
TCNTSA