PIC12F615-ESLASHMD datasheet(40/168 Pages) MICROCHIP

40 / 168 page

PIC12F609/615/12HV609/615

DS41302A-page 38

Preliminary

4.2.4.5

GP4/AN3(1)/CIN1-/T1G/

P1B(1, 2)/OSC2/CLKOUT

Figure 4-4 shows the diagram for this pin. The GP4 pin

is configurable to function as one of the following:

• a general purpose I/O

• an analog input for the ADC

(1, 2)

• Comparator inverting input

• a Timer1 gate (count enable)

• PWM output, alternate pin

(1, 2)

• a crystal/resonator connection

• a clock output

FIGURE 4-4:

BLOCK DIAGRAM OF GP4

Note 1: Alternate pin function.

2: PIC12F615/HV615 only.

VDD

VSS

VDD

Weak

Analog

Input Mode

Data Bus

WPU

GPIO

TRISIO

IOC

FOSC/4

To A/D Converter(5)

Oscillator

Circuit

OSC1

CLKOUT

Enable

Analog(3)

Input Mode

GPPU

RD GPIO

To T1G

INTOSC/

RC/EC(2)

CLK(1)

Modes

CLKOUT

Enable

Note 1: CLK modes are XT, HS, LP, TMR1 LP and CLKOUT Enable.

2: With CLKOUT option.

3: Analog Input mode comes from ANSEL.

4: Set has priority over Reset.

5: PIC12F615/HV615 only.

I/O Pin

Interrupt-on-

Change

S(4)

From other

Write ‘0’ to GBIF

GP<5, 3:0> pins

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