PIC12F609-I/PQTP MICROCHIP [Microchip Technology], PIC12F609-I/PQTP Datasheet - Page 37

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

4.2.4
Each GPIO pin is multiplexed with other functions. The
pins and their combined functions are briefly described
here. For specific information about individual functions
such as the Comparator or the ADC, refer to the
appropriate section in this data sheet.
4.2.4.1
Figure 4-1 shows the diagram for this pin. The GP0 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog input for the ADC
• an analog non-inverting input to the comparator
• a PWM output
• In-Circuit Serial Programming data
FIGURE 4-1:
© 2006 Microchip Technology Inc.
Interrupt-on-
Change
Note 1:
Write ‘0’ to GBIF
PIN DESCRIPTIONS AND
DIAGRAMS
GP0/AN0
2:
3:
(1)
Comparator mode and ANSEL determines Analog Input mode.
Set has priority over Reset.
PIC12F615/HV615 only.
Q
BLOCK DIAGRAM OF GP<1:0>
S
R
(1)
(2)
/CIN+/P1B
Data Bus
(1)
WPU
TRISIO
WPU
TRISIO
GPIO
GPIO
From other
GP<5:0> pins (GP0)
GP<5:2, 0> pins (GP1)
WR
RD
IOC
IOC
WR
WR
WR
RD
RD
RD
(1)
D
D
D
D
/ICSPDAT
CK
CK
CK
CK
PIC12F609/615/12HV609/615
Q
Q
Q
Q
Q
Q
Q
Q
Preliminary
To Comparator
To A/D Converter
4.2.4.2
Figure 4-1 shows the diagram for this pin. The GP1 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog input for the ADC
• an analog inverting input to the comparator
• a voltage reference input for the ADC
• In-Circuit Serial Programming clock
RD GPIO
Input Mode
Analog
Note 1:
(3)
Q
Q
(1)
Input Mode
Analog
EN
EN
D
D
PIC12F615/HV615 only.
GP1/AN1
(1)
GPPU
Q1
(1)
/CIN0-/V
V
Weak
DD
(1)
REF
DS41302A-page 35
(1)
V
V
(1)
DD
SS
/ICSPCLK
I/O Pin