SH7211_09 Datasheet, PDF (6/26 Pages) Renesas Technology Corp – MTU2 Three-Phase Complementary PWM Output Function

SH7211 Group
MTU2 Three-Phase Complementary
PWM Output Function (Complementary PWM Mode)
2.1.2 Complementary PWM mode
Multi-function timer pulse unit 2 (MTU2) can be set to complementary PWM mode, in which channels 3 and 4 are
used in combination. In complementary PWM mode, three-phase non-overlapping positive and negative PWM
waveforms are output. It is also possible to specify PWM waveform output with no dead time to prevent overlapping.
Pins TIOC3B, TIOC3D, TIOC4A, TIOC4B, TIOC4C, and TIOC4D function as PWM output pins in complementary
PWM mode. The TIOC3A pin can be set for toggle output synchronized with the PWM cycle.
Figure 3 shows the configuration of channels 3 and 4 of multi-function timer pulse unit 2 (MTU2) in complementary
PWM mode.
TGRC_3 TCBR
TDDR TGRA_3 TCDR
Comparator
TCNT_3 TCNTS TCNT_4
Comparator
Match
signal
Match
signal
TGRD_3
TGRC_4
TGRD_4
PWM cycle
output
PWM output 1
PWM output 2
PWM output 3
PWM output 4
PWM output 5
PWM output 6
External cutoff
input
POE0
POE1
POE2
POE3
External cutoff
interrupt
: Registers that can always be read or written from the CPU
: Registers that can be read or written from the CPU
(but for which access disabling can be set by TRWER)
: Registers that cannot be read or written from the CPU
(except for TCNTS, which can only be read)
Figure 3 Block Diagram of Channels 3 and 4 in Complementary PWM Mode
REJ06B0891-0100/Rev.1.00
July 2009
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