N in, Figure 24-1, Figure 24-1. analog comparator block diagram – Rainbow Electronics ATmega64M1 User Manual

Page 257

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257

8209A–AVR–08/09

ATmega16M1/32M1/64M1

Figure 24-1. Analog Comparator Block Diagram

(1)(2)

Notes:

1. ADC multiplexer output: see

Table 22-5 on page 245

.

2. Refer to

Figure 1-1 on page 2

and for Analog Comparator pin placement.

3. The voltage on Vref is defined in

22-4 “ADC Voltage Reference Selection” on page 244

+

-

Interrupt Sensitivity Control

Analog Comparator 0 Interrupt

AC0IE

AC0IF

AC0O

AC0IS1

AC0IS0

+

-

Interrupt Sensitivity Control

Analog Comparator 1 Interrupt

AC1IE

T1 Capture Trigger

AC1ICE

AC1IF

AC1O

AC1IS1

AC1IS0

+

-

Interrupt Sensitivity Control

Analog Comparator 2 Interrupt

AC2IE

AC2IF

AC2O

AC2IS1

AC2IS0

ACMP0

ACMPN0

ACMP1

ACMP2

AC2EN

/3.20

/2.13

/1.60

/6.40

AMP2

AC0M
2 1 0

DAC

Result

AC1EN

AC0EN

AC1M
2 1 0

AC2M
2 1 0

CLK

I/O

CLK

I/O

CLK

I/O

(/2)

(/2)

(/2)

Internal 2.56V

Reference

REFS1

REFS0

Aref

AVcc

ACMPN1

ACMPN2

+

-

Interrupt Sensitivity Control

Analog Comparator 3 Interrupt

AC3IE

AC3IF

AC3O

AC3IS1

AC3IS0

ACMP3

AC3EN

AC3M
2 1 0

CLK

I/O

(/2)

ACMPN3

+

-

AMPCMP2

AMP0

+

-

AMPCMP0

AMP1

+

-

AMPCMP1

AMPCMP0

AMPCMP1

AMPCMP2

ADC

ADC

ADC

Bandgap

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