mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 328

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

Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
11.3.2.2
Read anytime. This register cannot be modified after the WP bit is set.
A normal PWM output or positive polarity means that the PWM channel outputs high when the counter
value is smaller than or equal to the pulse width value and outputs low otherwise. An inverted output or
negative polarity means that the PWM channel outputs low when the counter value is smaller than or equal
to the pulse width value and outputs high otherwise.
328
Module Base + 0x0001
BOTNEGC
TOPNEGC
BOTNEGB
TOPNEGB
BOTNEGA
TOPNEGA
Reset
ENHA
Field
7
5
4
3
2
1
0
W
R
ENHA
Enable Hardware Acceleration — This bit enables writing to the VLMODE[1:0], SWAPC, SWAPB, and SWAPA
bits in the PMFCFG3 register. This bit cannot be modified after the WP bit is set.
0 Disable writing to VLMODE[1:0], SWAPC, SWAPB, and SWAPA bits
1 Enable writing to VLMODE[1:0], SWAPC, SWAPB, and SWAPA bits
Pair C Bottom-side PWM Polarity — This bit determines the polarity for Pair C bottom-side PWM (PWM5). This
bit cannot be modified after the WP bit is set.
0 Positive PWM5 polarity
1 Negative PWM5 polarity
Pair C Top-side PWM Polarity — This bit determines the polarity for Pair C top-side PWM (PWM4). This bit
cannot be modified after the WP bit is set.
0 Positive PWM4 polarity
1 Negative PWM4 polarity
Pair B Bottom-side PWM Polarity — This bit determines the polarity for Pair B bottom-side PWM (PWM3). This
bit cannot be modified after the WP bit is set.
0 Positive PWM3 polarity
1 Negative PWM3 polarity
Pair B Top-side PWM Polarity — This bit determines the polarity for Pair B top-side PWM (PWM2). This bit
cannot be modified after the WP bit is set.
0 Positive PWM2 polarity
1 Negative PWM2 polarity
Pair A Bottom-side PWM Polarity — This bit determines the polarity for Pair A bottom-side PWM (PWM1). This
bit cannot be modified after the WP bit is set.
0 Positive PWM1 polarity
1 Negative PWM1 polarity
Pair A Top-side PWM Polarity — This bit determines the polarity for Pair A top-side PWM (PWM0). This bit
cannot be modified after the WP bit is set.
0 Positive PWM0 polarity
1 Negative PWM0 polarity
PMF Configure 1 Register (PMFCFG1)
0
7
= Unimplemented or Reserved
0
0
6
Figure 11-5. PMF Configure 1 Register (PMFCFG1)
Table 11-3. PMFCFG1 Field Descriptions
BOTNEGC
MC9S12E256 Data Sheet, Rev. 1.08
0
5
TOPNEGC
0
4
Description
BOTNEGB
3
0
TOPNEGB
0
2
BOTNEGA
Freescale Semiconductor
0
1
TOPNEGA
0
0