Rainbow Electronics ATmega64C1 - Manual (Page 228)

228
7647A–AVR–02/08
ATmega32/64/M1/C1
Figure 18-1. Analog to Digital Converter Block Schematic
MUX2 MUX1 MUX0 MUX3 REFS1 REFS0 ADLAR MUX4 ADPS2 ADPS1 ADPS0 ADIE ADEN ADSC ADATE ADIF
ADMUX ADCSRA
ADTS2 ADTS1 ADTS0 ADASCR - - -
ADCSRB
Edge
Detector
Sources
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
AMP2-/ADC6
ADC7
AMP1-/ADC8
AMP1+/ADC9
ADC10
AMP0-
AMP0+
-
+
AMP0CSR
-
+
AMP1CSR
+
-
SAR
10
10
ADCH
ADCL
Coarse/Fine DAC
10
Internal 2.56V
Reference
REFS0 REFS1
AREF / ISRC
AVCC
PRESCALER CK
CK
ADC
CONTROL
CK
ADC
ADC CONVERSION
COMPLETE IRQ
GND
Bandgap
ADATE
ADTS3
Temp Sensor
VCC/4
ISRC
AMP2+
-
+
AMP2CSR
AREFEN
ISRCEN
Current
Source
ISRC