AT90USB646 datasheet(283/434 Pages) ATMEL

283 / 434 page

283

7593A–AVR–02/06

AT90USB64/128

Clear to disable the WAKEUPI interrupt.

• 3 - EORSTE - End Of Reset Interrupt Enable Bit

Set to enable the EORSTI interrupt. This bit is set after a reset.

Clear to disable the EORSTI interrupt.

• 2 - SOFE - Start Of Frame Interrupt Enable Bit

Set to enable the SOFI interrupt.

Clear to disable the SOFI interrupt.

•1 - Reserved

The value read from this bits is always 0. Do not set this bit

• 0 - SUSPE - Suspend Interrupt Enable Bit

Set to enable the SUSPI interrupt.

Clear to disable the SUSPI interrupt.

• 7 - ADDEN - Address Enable Bit

Set to activate the UADD (USB address).

Cleared by hardware. Clearing by software has no effect.

See Section 22.8, page 271 for more details.

• 6-0 - UADD6:0 - USB Address Bits

Load by software to configure the device address.

• 7-3 - Reserved

The value read from these bits is always 0. Do not set these bits.

• 2-0 - FNUM10:8 - Frame Number Upper Flag

Set by hardware. These bits are the 3 MSB of the 11-bits Frame Number information. They are

provided in the last received SOF packet. FNUM is updated if a corrupted SOF is received.

Bit

65432

ADDEN

UADD6:0

UDADDR

Read/Write

R/W

Initial Val-

00000

Bit

76543

-----

FNUM10:8

UDFNUMH

Read/Write

RRR

Initial Value

00000

AT90USB646 Datasheet(PDF) 283 Page - ATMEL Corporation

AT90USB646 Datasheet(HTML) 283 Page - ATMEL Corporation

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