mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 336

• Manufacturer Part Number: mc9s12e256
• Description: Hcs12 Microcontrollers 16-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
11.3.2.12 PMF Deadtime Sample Register (PMFDTMS)
Read anytime and writes have no effect.
11.3.2.13 PMF Correction Control Register (PMFCCTL)
Read and write anytime.
336
Module Base + 0x000E
Module Base + 0x000F
DT[5:0]
Reset
Reset
ISENS
Field
Field
5–0
5–4
W
W
R
R
PMF Deadtime Sample Bits — The DTx bits are grouped in pairs, DT0 and DT1, DT2 and DT3, DT4, and DT5.
Each pair reflects the corresponding ISx pin value as sampled at the end of deadtime.
Current Status Sensing Method — This field selects the top/bottom correction scheme, illustrated in
Table
Note: Assume the user will provide current sensing circuitry causing the voltage at the corresponding input pin
Note: The ISENS bits are not buffered. Changing the current status sensing method can affect the present PWM
0
0
0
0
7
7
11-18.
to be low for positive current and high for negative current. In addition, it assumes the top PWMs are PWM
0, 2, and 4 while the bottom PWMs are PWM 1, 3, and 5.
cycle.
= Unimplemented or Reserved
= Unimplemented or Reserved
Figure 11-18. PMF Deadtime Sample Register (PMFDTMS))
Figure 11-19. PMF Correction Control Register (PMFCCTL)
0
0
0
0
6
6
Table 11-16. PMFDTMS Field Descriptions
Table 11-17. PMFCCTL Field Descriptions
DT5
MC9S12E256 Data Sheet, Rev. 1.08
0
0
5
5
ISENS
DT4
0
0
4
4
Description
Description
DT3
3
0
3
0
0
IPOLC
DT2
0
0
2
2
Freescale Semiconductor
IPOLB
DT1
0
0
1
1
IPOLA
DT0
0
0
0
0