PIC16F688-ISLASHML datasheet(60/204 Pages) MICROCHIP

부품명	PIC16F688-I/ML

상세설명	14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PDF	204 Pages

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제조업체	MICROCHIP [Microchip Technology]

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60 / 204 page

PIC16F688

DS41203E-page 58

7.3

Comparator Control

The CMCON0 register (Register 7-1) provides access

to the following comparator features:

• Mode selection

• Output state

• Output polarity

• Input switch

7.3.1

COMPARATOR OUTPUT STATE

Each comparator state can always be read internally

via the associated CxOUT bit of the CMCON0 register.

The comparator outputs are directed to the CxOUT

pins when CM<2:0> = 110. When this mode is

selected, the TRIS bits for the associated CxOUT pins

must be cleared to enable the output drivers.

7.3.2

COMPARATOR OUTPUT POLARITY

Inverting the output of a comparator is functionally

equivalent to swapping the comparator inputs. The

polarity of a comparator output can be inverted by set-

ting the CxINV bits of the CMCON0 register. Clearing

CxINV results in a non-inverted output. A complete

table showing the output state versus input conditions

and the polarity bit is shown in Table 7-1.

TABLE 7-1:

OUTPUT STATE VS. INPUT

CONDITIONS

Input Conditions

CxINV

CxOUT

VIN- > VIN+

VIN- < VIN+

VIN- > VIN+

VIN- < VIN+

Note:

CxOUT refers to both the register bit and

output pin.

PIC16F688-I/ML 데이터시트(PDF) 60 Page - Microchip Technology