Multi-Function Timer Pulse Unit 3 (Mtu3C); Overview - Renesas RX100 Series User Manual

RX13T Group
19.

Multi-Function Timer Pulse Unit 3 (MTU3c)

19.1

Overview

This MCU has an on-chip multi-function timer pulse unit 3 (MTU3c), consisting of six 16-bit timer channels.
Table 19.1 shows the specifications of the MTU and Table 19.2 lists the functions of the MTU. Figure 19.1 shows a
block diagram of the MTU.
Table 19.1 MTU Specifications
Item
Pulse input/output
Pulse input
Count clock
Available operations
Interrupt skipping function
Interrupt sources
Buffer operation
Trigger generation
Low power consumption
function
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
Description
16 lines max.
3 lines
11 clocks for each channel (14 clocks for MTU0, 12 clocks for MTU2, 10 clocks for MTU5, and four
clocks for MTU1 & MTU2 (LWA = 1))
[MTU0 to MTU4]
 Waveform output on compare match
 Input capture function (noise filter setting available)
 Counter-clearing operation
 Simultaneous writing to multiple timer counters (TCNT)
 Simultaneous clearing on compare match or input capture
 Simultaneous input and output to registers in synchronization with counter operations
 Up to 12-phase PWM output in combination with synchronous operation
[MTU0, MTU3, MTU4]
 Buffer operation specifiable
[MTU1, MTU2]
 Phase counting mode can be specified independently
 32-bit phase counting mode can be specified for interlocked operation of MTU1 and MTU2 (when
TMDR3.LWA = 1)
 Cascade connection operation available
[MTU3, MTU4]
 Through interlocked operation of MTU3/4, the positive and negative signals in six phases can be
output in complementary PWM and reset-synchronized PWM operation.
 In complementary PWM mode, transfer of values from buffer registers to temporary registers on
crests or troughs of the timer-counter values or writing to the buffer registers (MTU4.TGRD)
 Double-buffering selectable in complementary PWM mode
[MTU3, MTU4]
 Through interlocking with MTU0, a mode for driving AC synchronous motors (brushless DC motors)
by using complementary PWM output and reset-synchronized PWM output is settable and allows the
selection of two types of waveform output (chopping or level)
[MTU5]
 Capable of operation as a dead-time compensation counter
 In complementary PWM mode, interrupts on crests and troughs of counter values and triggers to start
conversion by the A/D converter can be skipped
28 sources
Automatic transfer of register data (transfer from the buffer register to the timer register)
A/D converter start triggers can be generated
A/D converter start request delaying function enables A/D converter to be started with any desired
timing and to be synchronized with PWM output
Module stop mode can be set
19. Multi-Function Timer Pulse Unit 3 (MTU3c)
Page 322 of 1041