ST72561J4-Auto datasheet(119/324 Pages) STMICROELECTRONICS

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ST72561-Auto

16-bit timer

Doc ID 12370 Rev 8

119/324

Bit 5 = TOIE Timer Overflow Interrupt Enable.

0: Interrupt is inhibited.

1: A timer interrupt is enabled whenever the TOF bit of the SR register is set.

Bit 4 = FOLV2 Forced Output Compare 2.

This bit is set and cleared by software.

0: No effect on the OCMP2 pin.

1:Forces the OLVL2 bit to be copied to the OCMP2 pin, if the OC2E bit is set and even

if there is no successful comparison.

Bit 3 = FOLV1 Forced Output Compare 1.

This bit is set and cleared by software.

0: No effect on the OCMP1 pin.

1: Forces OLVL1 to be copied to the OCMP1 pin, if the OC1E bit is set and even if there

is no successful comparison.

Bit 2 = OLVL2 Output Level 2.

This bit is copied to the OCMP2 pin whenever a successful comparison occurs with the

OC2R register and OCxE is set in the CR2 register. This value is copied to the OCMP1 pin

in One Pulse mode and Pulse Width Modulation mode.

Bit 1 = IEDG1 Input Edge 1.

This bit determines which type of level transition on the ICAP1 pin will trigger the capture.

0: A falling edge triggers the capture.

1: A rising edge triggers the capture.

Bit 0 = OLVL1 Output Level 1.

The OLVL1 bit is copied to the OCMP1 pin whenever a successful comparison occurs with

the OC1R register and the OC1E bit is set in the CR2 register.

12.7.2

Control register 2 (CR2)

Read/ write

Reset value: 0000 0000 (00h)

Bit 7 = OC1E Output Compare 1 Pin Enable.

This bit is used only to output the signal from the timer on the OCMP1 pin (OLV1 in Output

Compare mode, both OLV1 and OLV2 in PWM and one-pulse mode). Whatever the value of

the OC1E bit, the Output Compare 1 function of the timer remains active.

0: OCMP1 pin alternate function disabled (I/O pin free for general-purpose I/O).

1: OCMP1 pin alternate function enabled.

Bit 6 = OC2E Output Compare 2 Pin Enable.

This bit is used only to output the signal from the timer on the OCMP2 pin (OLV2 in Output

Compare mode). Whatever the value of the OC2E bit, the Output Compare 2 function of the

timer remains active.

0: OCMP2 pin alternate function disabled (I/O pin free for general-purpose I/O).

1: OCMP2 pin alternate function enabled.

OC1E

OC2E

OPM

PWM

CC1

CC0

IEDG2

EXEDG

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