MC912DG128ACPV Freescale Semiconductor, MC912DG128ACPV Datasheet - Page 233

• Manufacturer Part Number: MC912DG128ACPV
• Description: IC MCU 128K FLASH 8MHZ 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC912DG128ACPV

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: CAN, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x8/10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PWSCAL0 — PWM Scale Register 0
PWPRES — PWM Prescale Counter
PWSCNT0 — PWM Scale Counter 0 Value
MC68HC912DT128A — Rev 4.0
MOTOROLA
RESET:
RESET:
RESET:
Bit 7
Bit 7
Bit 7
Bit 7
Bit 7
0
0
0
0
Bit 6
6
6
0
6
0
6
6
0
PWPRES is a free-running 7-bit counter. Read anytime. Write only in
special mode (SMOD = 1).
Read and write anytime. A write will cause the scaler counter PWSCNT0
to load the PWSCAL0 value unless in special mode with DISCAL = 1 in
the PWTST register.
PWM channels 0 and 1 can select clock S0 (scaled) as its input clock by
setting the control bit PCLK0 and PCLK1 respectively. Clock S0 is
generated by dividing clock A by the value in the PWSCAL0 register + 1
and dividing again by two. When PWSCAL0 = $FF, clock A is divided by
256 then divided by two to generate clock S0.
PWSCNT0 is a down-counter that, upon reaching $00, loads the value
of PWSCAL0. Read any time.
Freescale Semiconductor, Inc.
For More Information On This Product,
5
5
0
5
5
0
5
5
0
Go to: www.freescale.com
Pulse Width Modulator
4
4
0
4
4
0
4
4
0
3
3
0
3
3
0
3
3
0
2
2
0
2
2
0
2
2
0
1
1
0
1
1
0
1
1
0
PWM Register Descriptions
Pulse Width Modulator
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
Bit 0
0
0
0
Technical Data
$0044
$0045
$0043
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