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Chapter 1 Device Overview MC9S12ZVM-Family
MC9S12ZVM Family Reference Manual Rev. 1.3
Freescale Semiconductor
63
insertion, going through the external FETs and back into the internal ADC measurements of external
voltages and currents.
Figure 1-8. Control Loop Delay Overview
The PWM deadtime (T
DEAD_X
) is an integral number of bus clock cycles, configured by the PMF
deadtime registers.
The GDU propagation delays (t
delon
, t
deloff
) are specified in the electrical parameter
.
The FET turn on times (t
HGON
) are load dependent but are specified for particular loads in the electrical
parameter
The current sense amplifier delay is highly dependent on external components.
The ADC delay until a result is available is specified as the conversion period N
CONV
in
1.13.3.3
Static Timing Operation
The timing frame is static if it is the same in every control cycle (defined by reload frequency) and is
relative to start of the control cycle. The only settings modified from one control cycle to the next one are
the PWM duty cycle registers.
The main control cycle synchronization event is the PMF
reload
event. The PMF
reload
event can be
generated every
n
PWM periods.
This mode can optionally be extended by a timer channel trigger to PMF to change the PWM channel
operation (e.g. used for BLDCM commutation). In this case, the PMF configuration can propagate the
trigger through the control loop or can prevent propagation so the static timing of the control cycle and
inter-block coherency are not affected by the trigger.
At the end of the conversion sequence the first ADC command from the new sequence is loaded and the
ADC
x
waits for the next
trigger_x
. The PTU continues to generate the
trigger_x
events for each trigger
time from the list until a new
reload
or
async_reload
occurs.
PWM with
PWM base
PWM cycle
deadtime
GDU
propagation
FET
turn on
Current sense
settling time
ADC delay
T
DEAD_x
t
delon
t
HGON
(tcslsst)
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 ...