ST7LITE49K2 datasheet(101/245 Pages) STMICROELECTRONICS

101 / 245 page

ST7LITE49K2

On-chip peripherals

101/245

PWMX control status register (PWMxCSR)

Reset value: 0000 0000 (00h)

Bits 7:4= Reserved, must be kept cleared.

Bit 3 = OP_EN One Pulse Mode Enable bit

This bit is read/write by software and cleared by hardware after a reset. This bit enables

the One Pulse feature for PWM2 and PWM3 (only available for PWM3CSR)

0: One Pulse mode disable for PWM2/3.

1: One Pulse mode enable for PWM2/3.

Bit 2 = OPEDGE One Pulse Edge Selection bit

This bit is read/write by software and cleared by hardware after a reset. This bit selects

the polarity of the LTIC signal for One Pulse feature. This bit will be effective only if

OP_EN bit is set (only available for PWM3CSR)

0: Falling edge of LTIC is selected.

1: Rising edge of LTIC is selected.

Bit 1 = OPx PWMx Output Polarity bit

This bit is read/write by software and cleared by hardware after a reset. This bit selects

the polarity of the PWM signal.

0: The PWM signal is not inverted.

1: The PWM signal is inverted.

Bit 0 = CMPFx PWMx Compare flag

This bit is set by hardware and cleared by software by reading the PWMxCSR register.

It indicates that the upcounter value matches the Active DCRx register value.

0: Upcounter value does not match DCRx value.

1: Upcounter value matches DCRx value.

Break control register 1 (BREAKCR)

Reset value: 0000 0000 (00h)

Bit 7 = BR1SEL Break 1 input selection bit

This bit is read/write by software and cleared by hardware after reset. It selects the

active Break 1 signal from external BREAK1 pin and the output of the comparator.

0: External BREAK1 pin is selected for break mode.

1: Comparator 1 output is selected for break mode.

OP_EN

OPEDGE

OPx

CMPFx

Read/write

BR1SEL

BR1EDGE

BA1

BP1EN

PWM3

PWM2

PWM1

PWM0

Read/write

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