ST72325AR7-Auto datasheet(118/243 Pages) STMICROELECTRONICS

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ST72325xxx-Auto

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Doc ID 13770 Rev 3

13.7.2

Control register 2 (CR2)

3FOLV1

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

2OLVL2

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.

1IEDG1

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.

0OLVL1

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.

Table 60.

CR1 register description (continued)

Bit

Name

Function

CR2

Reset value: 0000 0000 (00h)

543

OC1E

OC2E

OPM

PWM

CC[1:0]

IEDG2

EXEDG

Table 61.

CR2 register description

Bit

Name

Function

7OC1E

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

6OC2E

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

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