HD643303x Hitachi, HD643303x Datasheet - Page 244

• Manufacturer Part Number: HD643303x
• Description: Hitachi Microcomputer
• Manufacturer: Hitachi

8.4.6 Complementary PWM Mode
In complementary PWM mode channels 3 and 4 are combined to output three pairs of
complementary, non-overlapping PWM waveforms.
When complementary PWM mode is selected TIOCA
and TOCXB
up/down-counters.
Table 8-7 lists the PWM output pins. Table 8-8 summarizes the register settings.
Table 8-7 Output Pins in Complementary PWM Mode
Channel
3
4
Table 8-8 Register Settings in Complementary PWM Mode
Register
TCNT3
TCNT4
GRA3
GRB3
GRA4
GRB4
Output Pin
TIOCA
TIOCB
TIOCA
TOCXA
TIOCB
TOCXB
4
Setting
Initially specifies the non-overlap margin (difference to TCNT4)
Initially set to H'0000
Specifies the upper limit value of TCNT3 minus 1
Specifies a transition point of PWM waveforms output from TIOCA
Specifies a transition point of PWM waveforms output from TIOCA
Specifies a transition point of PWM waveforms output from TIOCB
automatically become PWM output pins, and TCNT3 and TCNT4 function as
3
3
4
4
4
4
Description
PWM output 1
PWM output 1´ (non-overlapping complementary waveform to PWM
output 1)
PWM output 2
PWM output 2´ (non-overlapping complementary waveform to PWM
output 2)
PWM output 3
PWM output 3´ (non-overlapping complementary waveform to PWM
output 3)
229
3
, TIOCB
3
, TIOCA
4
, TOCXA
3
4
4
and TIOCB
and TOCXA
and TOCXB
4
, TIOCB
3
4
4
4
,