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ATmega16U4 Datasheet(PDF) 389 Page - ATMEL Corporation

Part # ATmega16U4
Description  8-bit Microcontroller with 16/32K Bytes of ISP Flash and USB Controller
PDF  408 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega16U4 Datasheet(HTML) 389 Page - ATMEL Corporation

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389
7766D–AVR–01/09
ATmega16U4/ATmega32U4
(0xBE)
TCNT4
Timer/Counter4 - Counter Register Low Byte
(0xBD)
TWAMR
TWAM6
TWAM5
TWAM4
TWAM3
TWAM2
TWAM1
TWAM0
-
(0xBC)
TWCR
TWINT
TWEA
TWSTA
TWSTO
TWWC
TWEN
-TWIE
(0xBB)
TWDR
2-wire Serial Interface Data Register
(0xBA)
TWAR
TWA6
TWA5
TWA4
TWA3
TWA2
TWA1
TWA0
TWGCE
(0xB9)
TWSR
TWS7
TWS6
TWS5
TWS4
TWS3
-
TWPS1
TWPS0
(0xB8)
TWBR
2-wire Serial Interface Bit Rate Register
(0xB7)
Reserved
-
-
-
-
-
-
-
-
(0xB6)
Reserved
-
(0xB5)
Reserved
-
-
-
-
-
-
-
-
(0xB4)
Reserved
-
-
-
-
-
-
-
-
(0xB3)
Reserved
-
-
-
-
-
-
-
-
(0xB2)
Reserved
-
-
-
-
-
-
-
-
(0xB1)
Reserved
-
-
-
-
-
-
-
-
(0xB0)
Reserved
-
-
-
-
-
-
-
-
(0xAF)
Reserved
-
-
-
-
-
-
-
-
(0xAE)
Reserved
-
-
-
-
-
-
-
-
(0xAD)
Reserved
-
-
-
-
-
-
-
-
(0xAC)
Reserved
-
-
-
-
-
-
-
-
(0xAB)
Reserved
-
-
-
-
-
-
-
-
(0xAA)
Reserved
-
-
-
-
-
-
-
-
(0xA9)
Reserved
-
-
-
-
-
-
-
-
(0xA8)
Reserved
-
-
-
-
-
-
-
-
(0xA7)
Reserved
-
-
-
-
-
-
-
-
(0xA6)
Reserved
-
-
-
-
-
-
-
-
(0xA5)
Reserved
-
-
-
-
-
-
-
-
(0xA4)
Reserved
-
-
-
-
-
-
-
-
(0xA3)
Reserved
-
-
-
-
-
-
-
-
(0xA2)
Reserved
-
-
-
-
-
-
-
-
(0xA1)
Reserved
-
-
-
-
-
-
-
-
(0xA0)
Reserved
-
-
-
-
-
-
-
-
(0x9F)
Reserved
-
-
-
-
-
-
-
-
(0x9E)
Reserved
-
-
-
-
-
-
-
-
(0x9D)
OCR3CH
Timer/Counter3 - Output Compare Register C High Byte
(0x9C)
OCR3CL
Timer/Counter3 - Output Compare Register C Low Byte
(0x9B)
OCR3BH
Timer/Counter3 - Output Compare Register B High Byte
(0x9A)
OCR3BL
Timer/Counter3 - Output Compare Register B Low Byte
(0x99)
OCR3AH
Timer/Counter3 - Output Compare Register A High Byte
(0x98)
OCR3AL
Timer/Counter3 - Output Compare Register A Low Byte
(0x97)
ICR3H
Timer/Counter3 - Input Capture Register High Byte
(0x96)
ICR3L
Timer/Counter3 - Input Capture Register Low Byte
(0x95)
TCNT3H
Timer/Counter3 - Counter Register High Byte
(0x94)
TCNT3L
Timer/Counter3 - Counter Register Low Byte
(0x93)
Reserved
-
-
-
-
-
-
-
-
(0x92)
TCCR3C
FOC3A
-
-
-
-
-
-
-
(0x91)
TCCR3B
ICNC3
ICES3
-
WGM33
WGM32
CS32
CS31
CS30
(0x90)
TCCR3A
COM3A1
COM3A0
COM3B1
COM3B0
COM3C1
COM3C0
WGM31
WGM30
(0x8F)
Reserved
-
-
-
-
-
-
-
-
(0x8E)
Reserved
-
-
-
-
-
-
-
-
(0x8D)
OCR1CH
Timer/Counter1 - Output Compare Register C High Byte
(0x8C)
OCR1CL
Timer/Counter1 - Output Compare Register C Low Byte
(0x8B)
OCR1BH
Timer/Counter1 - Output Compare Register B High Byte
(0x8A)
OCR1BL
Timer/Counter1 - Output Compare Register B Low Byte
(0x89)
OCR1AH
Timer/Counter1 - Output Compare Register A High Byte
(0x88)
OCR1AL
Timer/Counter1 - Output Compare Register A Low Byte
(0x87)
ICR1H
Timer/Counter1 - Input Capture Register High Byte
(0x86)
ICR1L
Timer/Counter1 - Input Capture Register Low Byte
(0x85)
TCNT1H
Timer/Counter1 - Counter Register High Byte
(0x84)
TCNT1L
Timer/Counter1 - Counter Register Low Byte
(0x83)
Reserved
-
-
-
-
-
-
-
-
(0x82)
TCCR1C
FOC1A
FOC1B
FOC1C
-
-
-
-
-
(0x81)
TCCR1B
ICNC1
ICES1
-
WGM13
WGM12
CS12
CS11
CS10
(0x80)
TCCR1A
COM1A1
COM1A0
COM1B1
COM1B0
COM1C1
COM1C0
WGM11
WGM10
(0x7F)
DIDR1
-
-
-
-
-
-
-
AIN0D
(0x7E)
DIDR0
ADC7D
ADC6D
ADC5D
ADC4D
-
-
ADC1D
ADC0D
(0x7D)
DIDR2
-
-
ADC13D
ADC12D
ADC11D
ADC10D
ADC9D
ADC8D
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page



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