mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 347

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mc9s12e256

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

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11.3.2.27 PMF Counter B Register (PMFCNTB)
Read anytime and writes have no effect.
11.3.2.28 PMF Counter Modulo B Register (PMFMODB)
Read anytime and write only if MTG is set.
Freescale Semiconductor
Module Base + 0x002A
Module Base + 0x002C
PMFMODB
PMFCNTB
Reset
Reset
Field
Field
14–0
14–0
W
W
R
R
15
15
0
0
0
0
PMF Counter B — This register displays the state of the 15-bit PWM B counter.
PMF Counter Modulo B — The 15-bit unsigned value written to this register is the PWM period in PWM clock
periods. Do not write a modulus value of zero.
Note: The PWM counter modulo register is buffered. The value written does not take effect until the LDOKB bit
= Unimplemented or Reserved
= Unimplemented or Reserved
14
14
0
0
is set and the next PWM load cycle begins. Reading PMFMODB reads the value in the buffer. It is not
necessarily the value the PWM generator B is currently using.
13
13
0
0
Figure 11-34. PMF Counter Modulo B Register (PMFMODB)
Figure 11-33. PMF Counter B Register (PMFCNTB)
12
12
0
0
Table 11-37. PMFMODB Field Descriptions
Table 11-36. PMFCNTB Field Descriptions
11
11
0
0
MC9S12E256 Data Sheet, Rev. 1.08
10
10
0
0
0
0
9
9
Chapter 11 Pulse Width Modulator with Fault Protection (PMF15B6CV2)
0
0
8
8
Description
Description
PMFMODB
PMFCNTB
0
0
7
7
0
0
6
6
0
0
5
5
4
0
4
0
0
0
3
3
0
0
2
2
0
0
1
1
0
0
0
0
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