ST72361AR4-Auto datasheet(134/279 Pages) STMICROELECTRONICS

tên linh kiện	ST72361AR4-Auto

Giải thích chi tiết về linh kiện	Clock, reset and supply management

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8-bit timer (TIM8)

ST72361xx-Auto

134/279

Doc ID 12468 Rev 3

Figure 68.

One pulse mode timing example

Figure 69.

Pulse width modulation mode timing example

13.3.6

Pulse width modulation mode

Pulse Width Modulation (PWM) mode enables the generation of a signal with a frequency

and pulse length determined by the value of the OC1R and OC2R registers.

Pulse Width Modulation mode uses the complete Output Compare 1 function plus the

OC2R register, and so this functionality can not be used when PWM mode is activated.

In PWM mode, double buffering is implemented on the output compare registers. Any new

values written in the OC1R and OC2R registers are taken into account only at the end of the

PWM period (OC2) to avoid spikes on the PWM output pin (OCMP1).

Procedure

To use pulse width modulation mode:

COUNTER

OLVL2

OLVL1

ICAP1

OCMP1

compare1

Note: IEDG1 = 1, OC1R = D0h, OLVL1 = 0, OLVL2 = 1

IC1R

COUNTER E2

OLVL2

OLVL1

OCMP1

compare2

compare1

compare2

Note: OC1R = D0h, OC2R = E2, OLVL1 = 0, OLVL2 = 1

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