SN8F5708 datasheet(114/204 Pages) SONIX

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SN8F5708 Series

Comparator

Datasheet Rev. 2.4

114

CMP1M Register (0x9D)

Bit

Field

Type

Initial

Description

CM1EN

R/W

Comparator 1 control bit.

0: Disable. CM1P/CM1N pins are GPIO mode.

1: Enable. CM1P/CM1N pins are CMP input pins.

5..4

CM1S[1:0]

R/W

CMP1 positive input voltage control bit.

00: 2.0V

01: 3.0V

10: 4.0V

11: CM1P

CM1OEN

R/W

Comparator 1 output pin control bit.

0: Disable. CM1O is GPIO mode.

1: Enable. CM1O is comparator output pin and isolate

GPIO function.

CM1OUT

Comparator 1 output flag bit.

0: CM1P voltage is less than CM1N voltage.

1: CM1P voltage is larger than CM1N voltage.

1..0

CM1G[1:0]

R/W

Comparator interrupt trigger direction control bit.

00: Reserved.

01: Rising edge trigger. CM1P > CM1N.

10: Falling edge trigger. CM1P < CM1N.

11: Both rising and falling edge trigger (Level change

trigger).

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