MM912H634DM1AER2 Freescale Semiconductor, MM912H634DM1AER2 Datasheet - Page 106

• Manufacturer Part Number: MM912H634DM1AER2
• Description: 16-bit Microcontrollers - MCU 64KS12 LIN2XLS/HS ISENSE
• Manufacturer: Freescale Semiconductor

Specifications of MM912H634DM1AER2

• 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: 5.5 V to 18 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: 15
• Number Of Timers: 1
• Program Memory Type: Flash
• Supply Voltage - Max: 18 V
• Supply Voltage - Min: 5.5 V

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