Analog Devices SHARC ADSP-214 Series Hardware Reference Manual page 677

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Programming Model

The section describes which sequences of software steps are required to get

the peripheral working successfully.

To enable an individual timer, set the timer's

ister. To disable an individual timer, set the timer's

Before enabling a timer, always program the corresponding timer's config-

the polarity of the

not alter the operating mode while the timer is running.

mation, see "Timer Configuration Registers (TMxCTL)" on page A-270.

PWM Out Mode

Use the following procedure to configure and run the timer in PWM out

1. Reset the

PWM_OUT operation. This configures the

output pin with its polarity determined by the

• The timer outputs a positive active pulse width at the

• The timer outputs a negative active pulse width at the

2. Initialize the period and width register values. Insure that the

period value is greater than the width value.

ADSP-214xx SHARC Processor Hardware Reference

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) register. This register defines the timer's operating mode,

signal, and the timer's interrupt behavior. Do

bit and set the configuration mode to 01 to select

Peripheral Timers

For more infor-

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