S9S12P64J0CFT Freescale Semiconductor, S9S12P64J0CFT Datasheet - Page 335
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S9S12P64J0CFT
Manufacturer Part Number
S9S12P64J0CFT
Description
16-bit Microcontrollers - MCU 16-bit 64K Flash
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12P64VQK.pdf
(566 pages)
Specifications of S9S12P64J0CFT
Rohs
yes
Core
S12
Processor Series
MC9S12P
Data Bus Width
16 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
64 KB
Data Ram Size
4 KB
On-chip Adc
Yes
Operating Supply Voltage
3.15 V to 5.5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
QFN-48
Mounting Style
SMD/SMT
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10.3.2.1
Each PWM channel has an enable bit (PWMEx) to start its waveform output. When any of the PWMEx
bits are set (PWMEx = 1), the associated PWM output is enabled immediately. However, the actual PWM
waveform is not available on the associated PWM output until its clock source begins its next cycle due to
the synchronization of PWMEx and the clock source.
An exception to this is when channels are concatenated. After concatenated mode is enabled (CONxx bits
set in PWMCTL register), enabling/disabling the corresponding 16-bit PWM channel is controlled by the
low-order PWMEx bit. In this case, the high-order bytes PWMEx bits have no effect and their
corresponding PWM output lines are disabled.
While in run mode, if all six PWM channels are disabled (PWME5–PWME0 = 0), the prescaler counter
shuts off for power savings.
Read: anytime
Write: anytime
Freescale Semiconductor
Module Base + 0x0000
PWME5
PWME4
PWME3
PWME2
Reset
Field
5
4
3
2
W
R
Pulse Width Channel 5 Enable
0 Pulse width channel 5 is disabled.
1 Pulse width channel 5 is enabled. The pulse modulated signal becomes available at PWM,output bit 5 when
Pulse Width Channel 4 Enable
0 Pulse width channel 4 is disabled.
1 Pulse width channel 4 is enabled. The pulse modulated signal becomes available at PWM, output bit 4 when
Pulse Width Channel 3 Enable
0 Pulse width channel 3 is disabled.
1 Pulse width channel 3 is enabled. The pulse modulated signal becomes available at PWM, output bit 3 when
Pulse Width Channel 2 Enable
0 Pulse width channel 2 is disabled.
1 Pulse width channel 2 is enabled. The pulse modulated signal becomes available at PWM, output bit 2 when
PWM Enable Register (PWME)
0
0
7
its clock source begins its next cycle.
its clock source begins its next cycle. If CON45 = 1, then bit has no effect and PWM output line 4 is disabled.
its clock source begins its next cycle.
its clock source begins its next cycle. If CON23 = 1, then bit has no effect and PWM output line 2 is disabled.
The first PWM cycle after enabling the channel can be irregular.
= Unimplemented or Reserved
0
0
6
Figure 10-3. PWM Enable Register (PWME)
S12P-Family Reference Manual, Rev. 1.13
Table 10-2. PWME Field Descriptions
PWME5
0
5
PWME4
NOTE
0
4
Description
PWME3
Pulse-Width Modulator (PWM8B6CV1) Block Description
0
3
PWME2
0
2
PWME1
0
1
PWME0
0
0
335
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