mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 160

• Manufacturer Part Number: mc68hc708mp16
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Pulse Width Modulator for Motor Control (PWMMC)
Technical Data
160
UP/DOWN COUNTER
UP/DOWN COUNTER
PWM VALUE = 3
PWM VALUE = 3
DEAD-TIME = 2
DEAD-TIME = 2
MODULUS = 4
PWM1/PWM2
PWM1/PWM2
MODULUS=4
DEAD-TIME
DEAD-TIME
OUTCTL
OUTCTL
PWM1
PWM2
PWM1
PWM2
OUT1
OUT2
OUT1
OUT2
DEAD-TIME INSERTED AS PART OF
NORMAL PWM OPERATION AS
CONTROLLED BY CURRENT
SENSING AND PWM GENERATOR.
Figure 9-29. Dead-Time Insertion During OUTCTL = 1
Figure 9-30. Dead-Time Insertion During OUTCTL = 1
2
2
Pulse Width Modulator for Motor Control (PWMMC)
DEAD-TIME INSERTED BECAUSE
WHEN OUTCTL WAS SET, THE
STATE OF OUT1 WAS SUCH THAT
PWM1 WAS DIRECTED TO TOGGLE
2
DEAD-TIME INSERTED DUE
TO SETTING OF OUT1 BIT.
2
DEAD-TIMES INSERTED
BECAUSE OUT1 TOGGLES,
DIRECTING PWM1 TO
TOGGLE.
2
2
MC68HC708MP16
NO DEAD-TIME INSERTED
BECAUSE OUT1 IS NOT
TOGGLING.
DEAD-TIME INSERTED
DUE TO CLEARING OF
OUT1 BIT.
Freescale Semiconductor
2
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Rev. 3.1