MC9S12E32CFU FREESCALE [Freescale Semiconductor, Inc], MC9S12E32CFU Datasheet - Page 352

• Manufacturer Part Number: MC9S12E32CFU
• Description: HCS12 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
11.3.2.29 PMF Deadtime B Register (PMFDTMB)
Read anytime and write only if MTG is set. This register cannot be modified after the WP bit is set.
352
Module Base + 0x002E
PMFDTMB
Reset
Field
11–0
W
R
15
0
0
PMF Deadtime B — The 12-bit value written to this register is the number of PWM clock cycles in
complementary channel operation. A reset sets the PWM deadtime register to a default value of 0x0FFF,
selecting a deadtime of 256-PWM clock cycles minus one bus clock cycle.
Note: Deadtime is affected by changes to the prescaler value. The deadtime duration is determined as follows:
= Unimplemented or Reserved
14
0
0
DT = P
value of dead time. For example: if the prescaler is programmed for a divide-by-two and the PMFDTMB is
set to five, then P = 2 and the deadtime value is equal to DT = 2
case exists when the P = 1, then DT = PMFDTMB.
13
0
0
PMFDTMB – 1, where DT is deadtime, P is the prescaler value, PMFDTMB is the programmed
Figure 11-35. PMF Deadtime B Register (PMFDTMB)
12
0
0
Table 11-38. PMFDTMB Field Descriptions
11
1
MC9S12E128 Data Sheet, Rev. 1.07
10
1
1
9
1
8
Description
1
7
PMFDTMB
1
6
1
5
5 – 1 = 9 IPbus clock cycles. A special
4
1
1
3
Freescale Semiconductor
1
2
1
1
1
0