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MFC2000 Datasheet(PDF) 369 Page - List of Unclassifed Manufacturers

Part # MFC2000
Description  Multifunctional Peripheral Controller 2000
PDF  426 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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MFC2000 Datasheet(HTML) 369 Page - List of Unclassifed Manufacturers

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Multifunctional Peripheral Controller 2000
MFC2000
100723A
Conexant
21-1
21. Pwm Logic
21.1 Functional Description
There are five PWM channels, each channel having separate logic and control.
PWM channel 0 outputs from the GPIO[11]/CPCIN pin. There is a PWMCh0 select bit in the PWMCh0Duty
Register. The PWMCh0 select bit goes to the GPIO block where the signal selection and the prioritization for the
GPIO[11]/CPCIN/PWM0 pin is done.
PWM channel 1 and PWM channel 2 share pins with FCS[0]n and FCS[1]n. There is a PWMCh1 select bit in the
PWMCh1Duty Register. There is a PWMCh2 select bit in the PWMCh2Duty Register.
PWM channel 3 shares the pin with GPIO[5]/CS[3]n. There is a PWMCh3 select bit in the PWMCh3Duty Register.
The PWMCh3 select bit goes to the GPIO block where the signal selection and the prioritization for the
GPIO[5]/CS[3]n/PWM3 pin is done.
PWM channel 4 shares the pin with GPIO[10]/P80_PB3. There is a PWMCh4 select bit in the PWMCh4Duty
Register. The PWMCh4 select bit goes to the GPIO block. The GPIO logic does the signal selection and the
prioritization for the GPIO[10]/P80_PB3/PWM4 pin.
The PWM function requirements are as follows.
•
Signal frequency range " AUXCLK/256 or AUXCLK/(2*256)
•
Duty cycle " high level: 1/256 to 256/256
•
8-bit counter for duty cycle programmability



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