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LM3S1969 Datasheet, PDF (555/677 Pages) Texas Instruments – Stellaris® LM3S1969 Microcontroller | |||
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OBSOLETE: TI has discontinued production of this device.
Stellaris® LM3S1969 Microcontroller
16.1
â Flexible output control block with PWM output enable of each PWM signal
â PWM output enable of each PWM signal
â Optional output inversion of each PWM signal (polarity control)
â Optional fault handling for each PWM signal
â Synchronization of timers in the PWM generator blocks
â Interrupt status summary of the PWM generator blocks
â Can initiate an ADC sample sequence
Block Diagram
Figure 16-1 on page 555 provides the Stellaris PWM module unit diagram and Figure 16-2 on page 556
provides a more detailed diagram of a Stellaris PWM generator. The LM3S1969 controller contains
three generator blocks (PWM0, PWM1, and PWM2) and generates six independent PWM signals
or three paired PWM signals with dead-band delays inserted.
Figure 16-1. PWM Unit Diagram
PWM Clock
Fault
System Clock
Control and
Status
PWMCTL
PWMSYNC
PWMSTATUS
Interrupts
Triggers
Interrupt
PWMINTEN
PWMRIS
PWMISC
PWM0_A
PWM
PWM0_B
Generator 0
PWM0_Fault
PWM1_A
PWM
PWM1_B
Generator 1
PWM1_Fault
PWM2_A
PWM
PWM2_B
Generator 2
PWM2_Fault
PWM
Output
Control
Logic
PWM 0
PWM 1
PWM 2
PWM 3
PWM 4
PWM 5
Output
PWMENABLE
PWMINVERT
PWMFAULT
July 24, 2012
555
Texas Instruments-Production Data
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