ST72361AR4-Auto datasheet(118/279 Pages) STMICROELECTRONICS

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16-bit timer

ST72361xx-Auto

118/279

Doc ID 12468 Rev 3

Bit 5 = OPM One Pulse Mode.

0: One Pulse mode is not active.

1: One Pulse mode is active, the ICAP1 pin can be used to trigger one pulse on the

OCMP1 pin; the active transition is given by the IEDG1 bit. The length of the generated

pulse depends on the contents of the OC1R register.

Bit 4 = PWM Pulse Width Modulation.

0: PWM mode is not active.

1: PWM mode is active, the OCMP1 pin outputs a programmable cyclic signal; the

length of the pulse depends on the value of OC1R register; the period depends on the

value of OC2R register.

Bit 3, 2 = CC[1:0] Clock Control.

The timer clock mode depends on these bits:

Note:

If the external clock pin is not available, programming the external clock configuration stops

the counter.

Bit 1 = IEDG2 Input Edge 2.

This bit determines which type of level transition on the ICAP2 pin will trigger the capture.

0: A falling edge triggers the capture.

1: A rising edge triggers the capture.

Bit 0 = EXEDG External Clock Edge.

This bit determines which type of level transition on the external clock pin EXTCLK will

trigger the counter register.

0: a falling edge triggers the counter register.

1: a rising edge triggers the counter register.

12.7.3

Control/status register (CSR)

Read/ write (bits 7:3 read only)

Reset value: xxxx x0xx (xxh)

Bit 7 = ICF1 Input Capture Flag 1.

0: no input capture (reset value).

1: an input capture has occurred on the ICAP1 pin or the counter has reached the

OC2R value in PWM mode. To clear this bit, first read the SR register, then read or

write the low byte of the IC1R (IC1LR) register.

Table 50.

Clock control bits

Timer clock

CC1

CC0

fCPU / 4

fCPU / 2

fCPU / 8

External Clock (where available)

ICF1

OCF1

TOF

ICF2

OCF2

TIMD

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