MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 366
MC9S12E128CPV
Manufacturer Part Number
MC9S12E128CPV
Description
Microcontrollers (MCU) 16 Bit 16MHz
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12E128CPV.pdf
(606 pages)
Specifications of MC9S12E128CPV
Data Bus Width
16 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
8 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
92
Number Of Timers
16 bit
Operating Supply Voltage
3.135 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
LQFP-112
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
On-chip Dac
8 bit, 2 Channel
Lead Free Status / Rohs Status
No RoHS Version Available
Available stocks
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Part Number:
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Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
11.4.5.2
The IPOLx bits select either the odd or the even PWM value registers to use in the next PWM cycle.
To detect the current status, the voltage on each ISx pin is sampled twice in a PWM period, at the end of
each deadtime. The value is stored in the DTx bits in the PMF Deadtime Sample register (PMFDTMS).
The DTx bits are a timing marker especially indicating when to toggle between PWM value registers.
Software can then set the IPOLx bit to toggle PMFVAL registers according to DTx values.
366
Manual Correction
IPOLx bits are buffered so only one PWM register is used per PWM cycle.
If an IPOLx bit changes during a PWM period, the new value does not take
effect until the next PWM period.
IPOLx bits take effect at the end of each PWM cycle regardless of the state
of the load okay bit, LDOK.
PWM CONTROLLED BY EVEN
PWM CYCLE START
IPOLA
IPOLB
IPOLC
Bit
Figure 11-54. Internal Correction Logic when ISENS = 01
ODD PWMVALREGISTER
PWM CONTROLLED BY
PWMVAL REGISTER
IPOLx BIT
Table 11-48. Top/Bottom Manual Correction
Logic Atate
0
1
0
1
0
1
MC9S12E128 Data Sheet, Rev. 1.07
D
CLK
Q
PMFVAL0 controls PWM0/PWM1 pair
PMFVAL1 controls PWM0/PWM1 pair
PMFVAL2 controls PWM2/PWM3 pair
PMFVAL3 controls PWM2/PWM3 pair
PMFVAL4 controls PWM4/PWM5 pair
PMFVAL5 controls PWM4/PWM5 pair
A
B
NOTE
A/B
GENERATOR
DEADTIME
Output Control
BOTTOM PWM
TOP PWM
Freescale Semiconductor
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