MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 390
MC9S12E128CPV
Manufacturer Part Number
MC9S12E128CPV
Description
Microcontrollers (MCU) 16 Bit 16MHz
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12E128CPV.pdf
(606 pages)
Specifications of MC9S12E128CPV
Data Bus Width
16 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
8 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
92
Number Of Timers
16 bit
Operating Supply Voltage
3.135 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
LQFP-112
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
On-chip Dac
8 bit, 2 Channel
Lead Free Status / Rohs Status
No RoHS Version Available
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12E128CPVE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 12 Pulse-Width Modulator (PWM8B6CV1)
12.3.2.4
This register selects the prescale clock source for clocks A and B independently.
Read: anytime
Write: anytime
390
PCKB[2:0]
PCKA[2:0]
PCLK2
PCLK1
PCLK0
Reset
Field
Field
6:5
2:0
2
1
0
W
R
Pulse Width Channel 2 Clock Select
0 Clock B is the clock source for PWM channel 2.
1 Clock SB is the clock source for PWM channel 2.
Pulse Width Channel 1 Clock Select
0 Clock A is the clock source for PWM channel 1.
1 Clock SA is the clock source for PWM channel 1.
Pulse Width Channel 0 Clock Select
0 Clock A is the clock source for PWM channel 0.
1 Clock SA is the clock source for PWM channel 0.
Prescaler Select for Clock B — Clock B is 1 of two clock sources which can be used for channels 2 or 3. These
three bits determine the rate of clock B, as shown in
Prescaler Select for Clock A — Clock A is 1 of two clock sources which can be used for channels 0, 1, 4, or 5.
These three bits determine the rate of clock A, as shown in
PWM Prescale Clock Select Register (PWMPRCLK)
0
0
7
PCKB2–PCKB0 and PCKA2–PCKA0 register bits can be written anytime.
If the clock prescale is changed while a PWM signal is being generated, a
truncated or stretched pulse can occur during the transition.
Figure 12-6. PWM Prescaler Clock Select Register (PWMPRCLK)
= Unimplemented or Reserved
PCKB2
0
6
Table 12-4. PWMCLK Field Descriptions (continued)
Table 12-5. PWMPRCLK Field Descriptions
PCKB1
MC9S12E128 Data Sheet, Rev. 1.07
0
5
PCKB0
NOTE
0
4
Description
Description
Table
12-6.
Table
0
0
3
12-7.
PCKA2
0
2
PCKA1
Freescale Semiconductor
0
1
PCKA0
0
0
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