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Chapter 14 Pulse Width Modulator with Fault Protection (PMF15B6CV3)
MC9S12ZVM Family Reference Manual Rev. 1.3
542
Freescale Semiconductor
In independent PWM operation, setting or clearing the OUT
n
bit activates or deactivates the PWM
n
output.
In complementary channel operation, the even-numbered OUT
n
bits replace the PWM generator outputs
as inputs to the deadtime generators. Complementary channel pairs still cannot drive active level
simultaneously, and the deadtime generators continue to insert deadtime in both channels of that pair,
whenever an even OUT
n
bit toggles. Even OUT
n
bits control the top PWM signals while the odd OUT
bits control the bottom PWM signals with respect to the even OUT
n
bits. Setting the odd OUT
n
bit makes
its corresponding PWM the complement of its even pair, while clearing the odd OUT
n
bit deactivates the
odd PWM.
Setting the OUTCTL
n
bits does not disable the PWM generators and current status sensing circuitry. They
continue to run, but no longer control the outputs. When the OUTCTL
n
bits are cleared, the outputs of the
PWM generator become the inputs to the deadtime generators at the beginning of the next PWM cycle.
Software can drive the PWM outputs even when PWM enable bit (PWMEN
x
) is set to zero.
NOTE
Avoid an unexpected deadtime insertion by clearing the OUT
n
bits before
setting and after clearing the OUTCTL
n
bits.
Figure 14-68. Setting OUT0 with OUTCTL Set in Complementary Mode
MODULUS = 4
PWM VALUE = 2
DEADTIME = 2
PWM0
PWM1
PWM0 WITH DEADTIME
PWM1 WITH DEADTIME
OUTCTL0
OUT0
PWM0
PWM1
OUT1
Содержание MC9S12ZVM series
Страница 116: ...Chapter 2 Port Integration Module S12ZVMPIMV1 MC9S12ZVM Family Reference Manual Rev 1 3 116 Freescale Semiconductor ...
Страница 242: ...Chapter 7 ECC Generation Module SRAM_ECCV1 MC9S12ZVM Family Reference Manual Rev 1 3 242 Freescale Semiconductor ...
Страница 384: ...Chapter 10 Supply Voltage Sensor BATSV3 MC9S12ZVM Family Reference Manual Rev 1 3 384 Freescale Semiconductor ...
Страница 484: ...Chapter 13 Programmable Trigger Unit PTUV2 MC9S12ZVM Family Reference Manual Rev 1 3 484 Freescale Semiconductor ...
Страница 662: ...Chapter 17 Gate Drive Unit GDUV4 MC9S12ZVM Family Reference Manual Rev 1 3 662 Freescale Semiconductor ...
Страница 684: ...Chapter 18 LIN Physical Layer S12LINPHYV2 MC9S12ZVM Family Reference Manual Rev 1 3 684 Freescale Semiconductor ...
Страница 740: ...Chapter 19 128 KB Flash Module S12ZFTMRZ128K512V2 MC9S12ZVM Family Reference Manual Rev 1 3 740 Freescale Semiconductor ...
Страница 756: ...Appendix A MCU Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 756 Freescale Semiconductor ...
Страница 772: ...Appendix D LINPHY Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 772 Freescale Semiconductor ...
Страница 776: ...Appendix E GDU Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 776 Freescale Semiconductor ...
Страница 788: ...Appendix I MSCAN Electrical Specifications MC9S12ZVM Family Reference Manual Rev 1 3 788 Freescale Semiconductor ...
Страница 790: ...Appendix J Package Information MC9S12ZVM Family Reference Manual Rev 1 3 790 Freescale Semiconductor ...