Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller DFN 8 S (6x5) 8-Bit 20 MHz I/O number 5

PIC12F683

4.2.5.6 GP5/T1CKI/OSC1/CLKIN

Figure 4-6 shows the diagram for this pin. The GP5 pin

is configurable to function as one of the following:

• a general purpose I/O

• a Timer1 clock input

• a crystal/resonator connection

• a clock input

FIGURE 4-6: BLOCK DIAGRAM OF GP5

TABLE 4-1: SUMMARY OF REGISTERS ASSOCIATED WITH GPIO

I/O pin

VDD

VSS

VDD

Weak

Data

WPU

GPIO

TRISIO

IOC

To Timer1 or CLKGEN

INTOSC

Mode

RD GPIO

INTOSC

Mode

GPPU

OSC2

(1)

Note 1: Timer1 LP oscillator enabled.

2: When using Timer1 with LP oscillator, the

Schmitt Trigger is bypassed.

TMR1LPEN

(1)

Interrupt-on-

change

Oscillator

Circuit

Bus

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

— ADCS2 ADCS1 ADCS0 ANS3 ANS2 ANS1 ANS0 -000 1111 -000 1111

CCP1CON

— — DC1B1 DC1B0 CCP1M3 CCP1M2 CCP1M1 CCP1M0 --00 0000 --00 0000

CMCON0

— COUT — CINV CIS CM2 CM1 CM0 -0-0 0000 -0-0 0000

PCON

— —ULPWUESBOREN — — POR BOR --01 --qq

--0u --uu

INTCON GIE

PEIE T0IE INTE GPIE T0IF INTF GPIF 0000 0000 0000 000x

IOC

— — IOC5 IOC4 IOC3 IOC2 IOC1 IOC0 --00 0000 --00 0000

OPTION_REG

GPPU

INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111

GPIO

— — GP5 GP4 GP3 GP2 GP1 GP0 --xx xxxx --x0 x000

T1CON

T1GINV TMR1GE T1CKPS1 T1CKPS0 T1OSCEN T1SYNC TMR1CS TMR1ON 0000 0000 0000 0000

TRISIO

— — TRISIO5 TRISIO4 TRISIO3 TRISIO2 TRISIO1 TRISIO0 --11 1111 --11 1111

WPU

— — WPU5 WPU4 — WPU2 WPU1 WPU0 --11 -111 --11 -111

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