PIC12F609-I/PQTP MICROCHIP [Microchip Technology], PIC12F609-I/PQTP Datasheet - Page 40

• Manufacturer Part Number: PIC12F609-I/PQTP
• Description: 8-Pin Flash-Based, 8-Bit CMOS Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

PIC12F609/615/12HV609/615
4.2.4.5
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
• Comparator inverting input
• a Timer1 gate (count enable)
FIGURE 4-4:
DS41302A-page 38
Interrupt-on-
Note 1: CLK modes are XT, HS, LP, TMR1 LP and CLKOUT Enable.
Change
2: With CLKOUT option.
3: Analog Input mode comes from ANSEL.
4: Set has priority over Reset.
5: PIC12F615/HV615 only.
GP4/AN3
P1B
Write ‘0’ to GBIF
(1, 2)
BLOCK DIAGRAM OF GP4
/OSC2/CLKOUT
(1)
Q
/CIN1-/T1G/
S
R
(1, 2)
(4)
Data Bus
TRISIO
TRISIO
GPIO
GPIO
WPU
WPU
WR
WR
WR
WR
IOC
IOC
RD
RD
RD
RD
GP<5, 3:0> pins
From other
D
D
D
D
CK
CK
CK
CK
Q
Q
Q
Q
Q
Q
Q
Q
To T1G
To A/D Converter
Preliminary
Input Mode
• PWM output, alternate pin
• a crystal/resonator connection
• a clock output
Analog
OSC1
F
(5)
Note 1: Alternate pin function.
OSC
RC/EC
INTOSC/
CLKOUT
CLKOUT
Enable
(3)
Enable
Input Mode
/4
GPPU
CLKOUT
Enable
Analog
2: PIC12F615/HV615 only.
RD GPIO
Oscillator
Circuit
Modes
Q
Q
1
0
(2)
CLK
EN
EN
(1)
D
D
V
DD
Weak
V
V
© 2006 Microchip Technology Inc.
Q1
SS
DD
I/O Pin
(1, 2)