ATMEGA644/V View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA644/V

8-bit AVR® Microcontroller with 16/32/64K Bytes In-System Programmable Flash

Atmel Corporation 

Address

(0x7D)

(0x7C)

(0x7B)

(0x7A)

(0x79)

(0x78)

(0x77)

(0x76)

(0x75)

(0x74)

(0x73)

(0x72)

(0x71)

(0x70)

(0x6F)

(0x6E)

(0x6D)

(0x6C)

(0x6B)

(0x6A)

(0x69)

(0x68)

(0x67)

(0x66)

(0x65)

(0x64)

(0x63)

(0x62)

(0x61)

(0x60)

0x3F (0x5F)

0x3E (0x5E)

0x3D (0x5D)

0x3C (0x5C)

0x3B (0x5B)

0x3A (0x5A)

0x39 (0x59)

0x38 (0x58)

0x37 (0x57)

0x36 (0x56)

0x35 (0x55)

0x34 (0x54)

0x33 (0x53)

0x32 (0x52)

0x31 (0x51)

0x30 (0x50)

0x2F (0x4F)

0x2E (0x4E)

0x2D (0x4D)

0x2C (0x4C)

0x2B (0x4B)

0x2A (0x4A)

0x29 (0x49)

0x28 (0x48)

0x27 (0x47)

0x26 (0x46)

0x25 (0x45)

0x24 (0x44)

0x23 (0x43)

0x22 (0x42)

0x21 (0x41)

0x20 (0x40)

0x1F (0x3F)

0x1E (0x3E)

0x1D (0x3D)

0x1C (0x3C)

Name

Reserved

ADMUX

ADCSRB

ADCSRA

ADCH

ADCL

Reserved

Reserved

Reserved

Reserved

PCMSK3

Reserved

Reserved

TIMSK2

TIMSK1

TIMSK0

PCMSK2

PCMSK1

PCMSK0

Reserved

EICRA

PCICR

Reserved

OSCCAL

Reserved

PRR0

Reserved

Reserved

CLKPR

WDTCSR

SREG

SPH

SPL

Reserved

RAMPZ

Reserved

Reserved

Reserved

SPMCSR

Reserved

MCUCR

MCUSR

SMCR

Reserved

OCDR

ACSR

Reserved

SPDR0

SPSR0

SPCR0

GPIOR2

GPIOR1

Reserved

OCR0B

OCR0A

TCNT0

TCCR0B

TCCR0A

GTCCR

EEARH

EEARL

EEDR

EECR

GPIOR0

EIMSK

EIFR

Bit 7

-

REFS1

-

ADEN

-

-

-

-

PCINT31

-

-

-

-

-

PCINT23

PCINT15

PCINT7

-

-

-

-

-

PRTWI

-

-

CLKPCE

WDIF

I

SP15

SP7

-

-

-

-

-

SPMIE

-

JTD

-

-

-

ACD

-

SPIF0

SPIE0

-

FOC0A

COM0A1

TSM

-

-

-

-

Bit 6

-

REFS0

ACME

ADSC

-

-

-

-

PCINT30

-

-

-

-

-

PCINT22

PCINT14

PCINT6

-

-

-

-

-

PRTIM2

-

-

-

WDIE

T

SP14

SP6

-

-

-

-

-

RWWSB

-

-

-

-

-

ACBG

-

WCOL0

SPE0

-

FOC0B

COM0A0

-

-

-

-

-

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

-

-

-

-

-

-

ADLAR

MUX4

MUX3

MUX2

MUX1

MUX0

-

-

-

ADTS2

ADTS1

ADTS0

ADATE

ADIF

ADIE

ADPS2

ADPS1

ADPS0

ADC Data Register High byte

ADC Data Register Low byte

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

PCINT29

PCINT28

PCINT27

PCINT26

PCINT25

PCINT24

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

OCIE2B

OCIE2A

TOIE2

ICIE1

-

-

OCIE1B

OCIE1A

TOIE1

-

-

-

OCIE0B

OCIE0A

TOIE0

PCINT21

PCINT20

PCINT19

PCINT18

PCINT17

PCINT16

PCINT13

PCINT12

PCINT11

PCINT10

PCINT9

PCINT8

PCINT5

PCINT4

PCINT3

PCINT2

PCINT1

PCINT0

-

-

-

-

-

-

ISC21

ISC20

ISC11

ISC10

ISC01

ISC00

-

-

PCIE3

PCIE2

PCIE1

PCIE0

-

-

-

-

-

-

Oscillator Calibration Register

-

-

-

-

-

-

PRTIM0

PRUSART1

PRTIM1

PRSPI

PRUSART0

PRADC

-

-

-

-

-

-

-

-

-

-

-

-

-

-

CLKPS3

CLKPS2

CLKPS1

CLKPS0

WDP3

WDCE

WDE

WDP2

WDP1

WDP0

H

S

V

N

Z

C

SP13

SP12

SP11

SP10

SP9

SP8

SP5

SP4

SP3

SP2

SP1

SP0

-

-

-

-

-

-

-

-

-

-

-

RAMPZ0

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

SIGRD

RWWSRE

BLBSET

PGWRT

PGERS

SPMEN

-

-

-

-

-

-

-

PUD

-

-

IVSEL

IVCE

-

JTRF

WDRF

BORF

EXTRF

PORF

-

-

SM2

SM1

SM0

SE

-

-

-

-

-

-

On-Chip Debug Register

ACO

ACI

ACIE

ACIC

ACIS1

ACIS0

-

-

-

-

-

-

SPI 0 Data Register

-

-

-

-

-

SPI2X0

DORD0

MSTR0

CPOL0

CPHA0

SPR01

SPR00

General Purpose I/O Register 2

General Purpose I/O Register 1

-

-

-

-

-

-

Timer/Counter0 Output Compare Register B

Timer/Counter0 Output Compare Register A

Timer/Counter0 (8 Bit)

-

-

WGM02

CS02

CS01

CS00

COM0B1

COM0B0

-

-

WGM01

WGM00

-

-

-

-

PSR2

PSR54310

-

-

EEPROM Address Register High Byte

EEPROM Address Register Low Byte

EEPROM Data Register

EEPM1

EEPM0

EERIE

EEMWE

EEWE

EERE

General Purpose I/O Register 0

-

-

-

INT2

INT1

INT0

-

-

-

INTF2

INTF1

INTF0

Page

240

224

242

243

243

62

147

127

99

62

62

63

59

61

32

40

35

52

9

10

10

13

265

71/255

47/255

37

251

242

157

157

157

25

25

99

99

99

98

99

149

20

20

20

20

25

60

60

10 ATmega164/324/644

2593AS–AVR–06/05

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