ATMEGA64-16MI View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATMEGA64-16MI

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

Atmel Corporation 

ATmega64(L)

Port F Data Direction Register

– DDRF

Bit

Read/Write

Initial Value

7

DDF7

R/W

0

6

DDF6

R/W

0

5

DDF5

R/W

0

4

DDF4

R/W

0

3

DDF3

R/W

0

2

DDF2

R/W

0

1

DDF1

R/W

0

0

DDF0

R/W

0

DDRF

Port F Input Pins Address –

PINF

Bit

Read/Write

Initial Value

7

PINF7

R

N/A

6

PINF6

R

N/A

5

PINF5

R

N/A

4

PINF4

R

N/A

3

PINF3

R

N/A

2

PINF2

R

N/A

1

PINF1

R

N/A

0

PINF0

R

N/A

PINF

Note that PORTF and DDRF Registers are not available in ATmega103 compatibility

mode where Port F serves as digital input only.

Port G Data Register – PORTG

Bit

7

6

5

4

3

2

1

0

–

–

–

PORTG4 PORTG3 PORTG2 PORTG1 PORTG0 PORTG

Read/Write

R

R

R

R/W

R/W

R/W

R/W

R/W

Initial Value

0

0

0

0

0

0

0

0

Port G Data Direction Register

– DDRG

Bit

7

6

5

4

3

2

1

0

–

–

–

DDG4

DDG3

DDG2

DDG1

DDG0

DDRG

Read/Write

R

R

R

R/W

R/W

R/W

R/W

R/W

Initial Value

0

0

0

0

0

0

0

0

Port G Input Pins Address –

PING

Bit

7

6

5

4

3

2

1

0

–

–

–

PING4 PING3 PING2 PING1 PING0

PING

Read/Write

R

R

R

R

R

R

R

R

Initial Value

0

0

0

N/A

N/A

N/A

N/A

N/A

Note that PORTG, DDRG, and PING are not available in ATmega103 compatibility

mode. In the ATmega103 compatibility mode Port G serves its alternate functions only

(TOSC1, TOSC2, WR, RD and ALE).

87

2490G–AVR–03/04

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