MM912F634DV1AE Freescale Semiconductor, MM912F634DV1AE Datasheet - Page 106
MM912F634DV1AE
Manufacturer Part Number
MM912F634DV1AE
Description
16-bit Microcontrollers - MCU DUAL LS/HS SWITCH W. LIN
Manufacturer
Freescale Semiconductor
Datasheet
1.MM912G634DV1AE.pdf
(338 pages)
Specifications of MM912F634DV1AE
Rohs
yes
Core
HCS12
Processor Series
MM912F634
Data Bus Width
16 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
32 KB
Data Ram Size
2 KB
On-chip Adc
Yes
Operating Supply Voltage
4.5 V to 5.5 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
LQFP-48
Mounting Style
SMD/SMT
A/d Bit Size
10 bit
A/d Channels Available
15
Interface Type
SPI
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
6
Number Of Timers
1
Program Memory Type
Flash
Supply Voltage - Max
5.5 V
Supply Voltage - Min
4.5 V
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
MM912F634DV1AE
Manufacturer:
FREESCALE
Quantity:
20 000
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Functional Description and Application Information
As an example of a center aligned output, consider the following case:
Figure 30
4.13.4.2.7
Table 121
4.13.5
The reset state of each individual bit is listed within the
their bit-fields. All special functions or modes which are initialized during or just following reset are described within this section.
4.13.6
The PWM module has no Interrupts.
Freescale Semiconductor
•
•
E = 100 µs
Clock Source = E, where E = 10 kHz (100 µs period)
PWMx Frequency = 10 kHz/8 = 1.25 kHz
PWMx Period = 800 µs
PWMx Duty Cycle = 3/4 *100% = 75%
The 8-bit up/down counter is configured as an up counter out of reset.
All the channels are disabled and all the counters do not count.
shows the output waveform generated.
summarizes the boundary conditions for the PWM, regardless of the output mode (left aligned or center aligned).
Resets
Interrupts
Table 121. PWM Boundary Cases
Note:
PPOLx = 0
PWMPERx = 4
PWMDTYx = 1
94.
PWM Boundary Cases
(indicates no duty)
(indicates no duty)
>= PWMPERx
Counter = $00 and does not count.
PWMDTYx
$00
$00
XX
XX
Figure 30. PWM Center Aligned Output Example Waveform
(indicates no period)
(indicates no period)
PWMPERx
DUTY CYCLE = 75%
PERIOD = 800 µs
$00
$00
>$00
>$00
XX
Section 4.13.3, “Register
(94)
(94)
PPOLx
1
0
1
0
1
Descriptions"”, which details the registers and
PWM Control Module (PWM8B2C)
PWMx Output
Always high
Always high
Always high
Always low
Always low
E = 100 µs
MM912F634
106
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