mc68hc708mp16 Freescale Semiconductor, Inc, mc68hc708mp16 Datasheet - Page 155

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

MC68HC708MP16
Freescale Semiconductor
NOTE:
—
Rev. 3.1
The values latched on the ISx pins are buffered so that only one PWM
register is used per PWM cycle. If a current sense value changes during
a PWM period, the new value does not take effect until the next PWM
period.
When initially enabled by setting the PWMEN bit, no current has
previously been sensed. PWM value registers 1, 3, and 5 initially control
the three PWM pairs when configured for current sensing correction.
Pulse Width Modulator for Motor Control (PWMMC)
PMCNT = PMMOD
Figure 9-23. Internal Correction Logic when ISENS[1:0] = 10
Figure 9-24. Internal Correction Logic when ISENS[1:0] = 11
ISx PIN
ISx PIN
PWM CYCLE START
INITIAL VALUE = 0
PWM CYCLE START
INITIAL VALUE = 0
D
EVEN PWMVAL REGISTER
CLK
PWM CONTROLLED BY
ODD PWMVAL REGISTER
D
PWM CONTROLLED BY
EVEN PWMVAL REGISTER
CLK
PWM CONTROLLED BY
ODD PWMVAL REGISTER
PWM CONTROLLED BY
Q
Q
D
CLK
Pulse Width Modulator for Motor Control (PWMMC)
D
CLK
Q
Q
A
B
A
B
A/B
A/B
GENERATOR
DEADTIME
GENERATOR
DEADTIME
TOP PWM
BOTTOM PWM
Technical Data
TOP PWM
BOTTOM PWM
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