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AT90USB646 Datasheet(PDF) 303 Page - ATMEL Corporation

Part # AT90USB646
Description  Microcontroller with 64/128K Bytes of ISP Flash and USB Controller
PDF  434 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90USB646 Datasheet(HTML) 303 Page - ATMEL Corporation

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303
7593A–AVR–02/06
AT90USB64/128
• 1 - DDISCE - Device Disconnection Interrupt Enable
Set this bit to enable the DDISCI interrupt.
Clear this bit to disable the DDISCI interrupt.
• 0 - DCONNE - Device Connection Interrupt Enable
Set this bit to enable the DCONNI interrupt.
Clear this bit to disable the DCONNI interrupt.
•7 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 6-0 - HADDR6:0 - USB Host Address
These bits contain the address of the USB Device.
• 7-4 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 3-0 - FNUM10:8 - Frame Number
The value contained in this register is the current SOF number.
This value can be modified by software.
• 7-0 - FNUM7:0 - Frame Number
The value contained in this register is the current SOF number.
This value can be modified by software.
Bit
7
654
321
0
HADDR6
HADDR5
HADDR4
HADDR3
HADDR2
HADDR1
HADDR0
HADDR6
UHADDR
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Bit
7
65
43
2
1
0
-
-
-
-
-
FNUM10
FNUM9
FNUM8
UHFNUMH
Read/Write
R
RR
RR
R
R
R
Initial Value
0
0
0
0
0
0
0
0
Bit
7
65
43
21
0
FNUM7
FNUM6
FNUM5
FNUM4
FNUM3
FNUM2
FNUM1
FNUM0
UHFNUML
Read/Write
RR
RR
RR
RR
Initial Value
0
0
0
0
0
0
0
0



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