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ATMEGA8U2 Datasheet(PDF) 7 Page - ATMEL Corporation

No. de pieza ATMEGA8U2
Descripción Electrónicos  8-bit Microcontroller with 8/16/32K Bytes of ISP Flash and USB Controller
Download  21 Pages
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Fabricante Electrónico  ATMEL [ATMEL Corporation]
Página de inicio  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA8U2 Datasheet(HTML) 7 Page - ATMEL Corporation

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7
7799CS–AVR–12/09
ATmega8U2/16U2/32U2
6.
Register Summary
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page
(0xFF)
Reserved
-
-
-
-
-
-
-
-
(0xFE)
Reserved
-
-
-
-
-
-
-
-
(0xFD)
Reserved
-
-
-
-
-
-
-
-
(0xFC)
Reserved
-
-
-
-
-
-
-
-
(0xFB)
UPOE
UPWE1
UPWE0
UPDRV1
UPDRV0
SCKI
DATAI
DPI
DMI
page 195
(0xFA)
Reserved
-
-
-
-
-
-
-
-
(0xF9)
Reserved
-
-
-
-
-
-
-
-
(0xF8)
Reserved
-
-
-
-
-
-
-
-
(0xF7)
Reserved
-
-
-
-
-
-
-
-
(0xF6)
Reserved
-
-
-
-
-
-
-
-
(0xF5)
Reserved
-
-
-
-
-
-
-
-
(0xF4)
UEINT
-
-EPINT4:0
page 222
(0xF3)
Reserved
-
-
-
-
-
-
-
-
(0xF2)
UEBCLX
BYCT7:0
page 221
(0xF1)
UEDATX
DAT7:0
page 221
(0xF0)
UEIENX
FLERRE
NAKINE
-
NAKOUTE
RXSTPE
RXOUTE
STALLEDE
TXINE
page 220
(0xEF)
UESTA1X
-
-
-
-
-
CTRLDIR
CURRBK1:0
page 218
(0xEE)
UESTA0X
CFGOK
OVERFI
UNDERFI
-
DTSEQ1:0
NBUSYBK1:0
page 217
(0xED)
UECFG1X
-
EPSIZE2:0
EPBK1:0
ALLOC
-
page 216
(0xEC)
UECFG0X
EPTYPE1:0
-
-
-
-
-
EPDIR
page 215
(0xEB)
UECONX
-
-
STALLRQ
STALLRQC
RSTDT
-
-EPEN
page 214
(0xEA)
UERST
-
-
-
EPRST4:0
page 214
(0xE9)
UENUM
-
-
-
-
-
EPNUM2:0
page 214
(0xE8)
UEINTX
FIFOCON
NAKINI
RWAL
NAKOUTI
RXSTPI
RXOUTI
STALLEDI
TXINI
page 219
(0xE7)
Reserved
-
-
-
-
-
-
-
-
(0xE6)
UDMFN
-
-
-
FNCERR
-
-
-
-
page 213
(0xE5)
UDFNUMH
-
-
-
-
-FNUM10:8
page 213
(0xE4)
UDFNUML
FNUM7:0
page 213
(0xE3)
UDADDR
ADDEN
UADD6:0
page 212
(0xE2)
UDIEN
-
UPRSME
EORSME
WAKEUPE
EORSTE
SOFE
-SUSPE
page 211
(0xE1)
UDINT
-
UPRSMI
EORSMI
WAKEUPI
EORSTI
SOFI
-SUSPI
page 210
(0xE0)
UDCON
-
-
-RPUTX
-
RSTCPU
RMWKUP
DETACH
page 209
(0xDF)
Reserved
-
-
-
-
-
-
-
-
(0xDE)
Reserved
-
-
-
-
-
-
-
-
(0xDD)
Reserved
-
-
-
-
-
-
-
-
(0xDC)
Reserved
-
-
-
-
-
-
-
-
(0xDB)
Reserved
-
-
-
-
-
-
-
-
(0xDA)
Reserved
-
-
-
-
-
-
-
-
(0xD9)
Reserved
-
-
-
-
-
-
-
-
(0xD8)
USBCON
USBE
-FRZCLK
-
-
-
-
-
page 195
(0xD7)
Reserved
-
-
-
-
-
-
-
-
(0xD6)
Reserved
-
-
-
-
-
-
-
-
(0xD5)
Reserved
-
-
-
-
-
-
-
-
(0xD4)
Reserved
-
-
-
-
-
-
-
-
(0xD3)
Reserved
-
-
-
-
-
-
-
-
(0xD2)
CLKSTA
-
-
-
-
-
-
RCON
EXTON
page 38
(0xD1)
CLKSEL1
RCCKSEL3
RCCKSEL2
RCCKSEL1
RCCKSEL0
EXCKSEL3
EXCKSEL2
EXCKSEL1
EXCKSEL0
page 38
(0xD0)
CLKSEL0
RCSUT1
RCSUT0
EXSUT1
EXSUT0
RCE
EXTE
-CLKS
page 37
(0xCF)
Reserved
-
-
-
-
-
-
-
-
(0xCE)
UDR1
USART1 I/O Data Register
page 167
(0xCD)
UBRR1H
-
-
-
-
USART1 Baud Rate Register High Byte
page 171
(0xCC)
UBRR1L
USART1 Baud Rate Register Low Byte
page 171
(0xCB)
UCSR1D
-
-
-
-
-
-CTSEN
RTSEN
page 171
(0xCA)
UCSR1C
UMSEL11
UMSEL10
UPM11
UPM10
USBS1
UCSZ11
UCSZ10
UCPOL1
page 169
(0xC9)
UCSR1B
RXCIE1
TXCIE1
UDRIE1
RXEN1
TXEN1
UCSZ12
RXB81
TXB81
page 168
(0xC8)
UCSR1A
RXC1
TXC1
UDRE1
FE1
DOR1
PE1
U2X1
MPCM1
page 167
(0xC7)
Reserved
-
-
-
-
-
-
-
-
(0xC6)
Reserved
-
-
-
-
-
-
-
-
(0xC5)
Reserved
-
-
-
-
-
-
-
-
(0xC4)
Reserved
-
-
-
-
-
-
-
-
(0xC3)
Reserved
-
-
-
-
-
-
-
-
(0xC2)
Reserved
-
-
-
-
-
-
-
-
(0xC1)
Reserved
-
-
-
-
-
-
-
-
(0xC0)
Reserved
-
-
-
-
-
-
-
-
(0xBF)
Reserved
-
-
-
-
-
-
-
-


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