PIC16F688-ISLASHMLQTP datasheet(46/202 Pages) MICROCHIP

46 / 202 page

PIC16F688

DS41203C-page 44

4.3.5

RC4/C2OUT/TX/CK

Figure 4-9 shows the diagram for this pin. The RC4 is

configurable to function as one of the following:

• a general purpose I/O

• a digital output from the comparator

• a digital I/O for the EUSART

FIGURE 4-9:

BLOCK DIAGRAM OF RC4

4.3.6

RC5/RX/DT

The RC5 is configurable to function as one of the

following:

• a general purpose I/O

• a digital I/O for the EUSART

FIGURE 4-10:

BLOCK DIAGRAM OF RC5

TABLE 4-2:

SUMMARY OF REGISTERS ASSOCIATED WITH PORTC

I/O Pin

VDD

VSS

Data Bus

PORTC

TRISC

PORTC

USART Select(1)

C2OUT EN

Note

USART Select signals selects between port

data and peripheral output.

To EUSART CLK Input

C2OUT

EUSART

TX/CLKOUT

I/O Pin

VDD

VSS

Data Bus

PORTC

TRISC

To EUSART RX/DT In

PORTC

EUSART

EUSART Out

Enable

DT Out

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on

POR, BOR

Value on

all other

Resets

ANSEL

ANS7

ANS6

ANS5

ANS4

ANS3

ANS2

ANS1

ANS0

1111 1111

CMCON0

C2OUT

C1OUT

C2INV

C1INV

CIS

CM2

CM1

CM0

0000 0000

PORTC

—

RC5

RC4

RC3

RC2

RC1

RC0

--xx 0000

TRISC

—

TRISC5

TRISC4

TRISC3

TRISC2

TRISC1

TRISC0

--11 1111

Legend:

= unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTC.

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