PIC12F609-I/PQTP MICROCHIP [Microchip Technology], PIC12F609-I/PQTP Datasheet - Page 67

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

9.0
The
conversion of an analog input signal to a 10-bit binary
representation of that signal. This device uses analog
inputs, which are multiplexed into a single sample and
hold circuit. The output of the sample and hold is
connected to the input of the converter. The converter
generates a 10-bit binary result via successive
approximation and stores the conversion result into the
ADC result registers (ADRESL and ADRESH).
The ADC voltage reference is software selectable to
either V
pins.
The ADC can generate an interrupt upon completion of
a conversion. This interrupt can be used to wake-up the
device from Sleep.
Figure 9-1 shows the block diagram of the ADC.
FIGURE 9-1:
© 2006 Microchip Technology Inc.
Analog-to-Digital
DD
ANALOG-TO-DIGITAL
CONVERTER (ADC) MODULE
(PIC12F615/HV615 ONLY)
or a voltage applied to the external reference
0.6V Reference
1.2V Reference
GP1/AN1/V
ADC BLOCK DIAGRAM (+3 INTERNAL)
GP0/AN0
GP2/AN2
GP4/AN3
CV
Converter
REF
REF
CHS
(ADC)
V
REF
PIC12F609/615/12HV609/615
000
001
010
011
100
101
110
allows
V
Preliminary
DD
GO/DONE
VCFG = 0
VCFG = 1
ADON
V
SS
A/D
ADFM
ADRESH ADRESL
0 = Left Justify
1 = Right Justify
10
10
DS41302A-page 65