ATMEGA32U4-16AU データシートの表示（PDF） - Atmel Corporation

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ATMEGA32U4-16AU

8-bit Microcontroller with 16/32K Bytes of ISP Flash and USB Controller

Atmel Corporation 

Address

0x1B (0x3B)

0x1A (0x3A)

0x19 (0x39)

0x18 (0x38)

0x17 (0x37)

0x16 (0x36)

0x15 (0x35)

0x14 (0x34)

0x13 (0x33)

0x12 (0x32)

0x11 (0x31)

0x10 (0x30)

0x0F (0x2F)

0x0E (0x2E)

0x0D (0x2D)

0x0C (0x2C)

0x0B (0x2B)

0x0A (0x2A)

0x09 (0x29)

0x08 (0x28)

0x07 (0x27)

0x06 (0x26)

0x05 (0x25)

0x04 (0x24)

0x03 (0x23)

0x02 (0x22)

0x01 (0x21)

0x00 (0x20)

Name

PCIFR

Reserved

TIFR4

TIFR3

TIFR2

TIFR1

TIFR0

Reserved

Reserved

Reserved

PORTF

DDRF

PINF

PORTE

DDRE

PINE

PORTD

DDRD

PIND

PORTC

DDRC

PINC

PORTB

DDRB

PINB

Reserved

Reserved

Reserved

Bit 7

-

-

OCF4D

-

-

-

-

-

-

-

PORTF7

DDF7

PINF7

-

-

-

PORTD7

DDD7

PIND7

PORTC7

DDC7

PINC7

PORTB7

DDB7

PINB7

-

-

-

Bit 6

-

-

OCF4A

-

-

-

-

-

-

-

PORTF6

DDF6

PINF6

PORTE6

DDE6

PINE6

PORTD6

DDD6

PIND6

PORTC6

DDC6

PINC6

PORTB6

DDB6

PINB6

-

-

-

Bit 5

-

-

OCF4B

ICF3

-

ICF1

-

-

-

-

PORTF5

DDF5

PINF5

-

-

-

PORTD5

DDD5

PIND5

-

-

-

PORTB5

DDB5

PINB5

-

-

-

Bit 4

-

-

-

-

-

-

-

-

-

-

PORTF4

DDF4

PINF4

-

-

-

PORTD4

DDD4

PIND4

-

-

-

PORTB4

DDB4

PINB4

-

-

-

Bit 3

-

-

-

OCF3C

-

OCF1C

-

-

-

-

-

-

-

-

-

-

PORTD3

DDD3

PIND3

-

-

-

PORTB3

DDB3

PINB3

-

-

-

Bit 2

-

-

TOV4

OCF3B

OCF2B

OCF1B

OCF0B

-

-

-

-

-

-

PORTE2

DDE2

PINE2

PORTD2

DDD2

PIND2

-

-

-

PORTB2

DDB2

PINB2

-

-

-

Bit 1

-

-

-

OCF3A

OCF2A

OCF1A

OCF0A

-

-

-

PORTF1

DDF1

PINF1

-

-

-

PORTD1

DDD1

PIND1

-

-

-

PORTB1

DDB1

PINB1

-

-

-

Bit 0

PCIF0

-

-

TOV3

TOV2

TOV1

TOV0

-

-

-

PORTF0

DDF0

PINF0

-

-

-

PORTD0

DDD0

PIND0

-

-

-

PORTB0

DDB0

PINB0

-

-

-

Page

Note: 1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses

should never be written.

2. I/O registers within the address range $00 - $1F are directly bit-accessible using the SBI and CBI instructions. In these reg-

isters, the value of single bits can be checked by using the SBIS and SBIC instructions.

3. Some of the status flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on

all bits in the I/O register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions

work with registers 0x00 to 0x1F only.

4. When using the I/O specific commands IN and OUT, the I/O addresses $00 - $3F must be used. When addressing I/O reg-

isters as data space using LD and ST instructions, $20 must be added to these addresses. The ATmega16U4/ATmega32U4

is a complex microcontroller with more peripheral units than can be supported within the 64 location reserved in Opcode for

the IN and OUT instructions. For the Extended I/O space from $60 - $1FF in SRAM, only the ST/STS/STD and LD/LDS/LDD

instructions can be used.

12 ATmega16U4/ATmega32U4

7766BS–AVR–07/08

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