mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 387
mc9s12e256
Manufacturer Part Number
mc9s12e256
Description
Hcs12 Microcontrollers 16-bit Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12E256.pdf
(602 pages)
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12.3.2.5
The PWMCAE register contains six control bits for the selection of center aligned outputs or left aligned
outputs for each PWM channel. If the CAEx bit is set to a 1, the corresponding PWM output will be center
aligned. If the CAEx bit is cleared, the corresponding PWM output will be left aligned. Reference
Section 12.4.2.5, “Left Aligned Outputs,”
detailed description of the PWM output modes.
Read: anytime
Write: anytime
Freescale Semiconductor
Reset
W
R
PWM Center Align Enable Register (PWMCAE)
0
0
7
Write these bits only when the corresponding channel is disabled.
= Unimplemented or Reserved
PCKB2
PCKA2
Figure 12-7. PWM Center Align Enable Register (PWMCAE)
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
6
Table 12-6. Clock B Prescaler Selects
Table 12-7. Clock A Prescaler Selects
CAE5
PCKB1
PCKA1
MC9S12E256 Data Sheet, Rev. 1.08
0
5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
and
Section 12.4.2.6, “Center Aligned Outputs,”
CAE4
NOTE
PCKB0
0
4
PCKA0
0
1
0
1
0
1
0
1
1
0
1
1
0
0
1
0
CAE3
3
0
Value of Clock B
Chapter 12 Pulse-Width Modulator (PWM8B6CV1)
Value of Clock A
Bus Clock / 128
Bus Clock / 128
Bus Clock / 16
Bus Clock / 32
Bus Clock / 16
Bus Clock / 32
Bus Clock / 64
Bus Clock / 2
Bus Clock / 4
Bus Clock / 8
Bus Clock / 64
Bus Clock / 2
Bus Clock / 4
Bus Clock / 8
Bus Clock
Bus Clock
CAE2
0
2
CAE1
0
1
for a more
CAE0
0
0
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