atmega103 ATMEL Corporation, atmega103 Datasheet - Page 19

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atmega103

Manufacturer Part Number
atmega103
Description
Atmega103 8-bit With 128k Bytes Of In-system Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet

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0945I–AVR–02/07
Table 2. ATmega103(L) I/O Space (Continued)
I/O Address (SRAM
$2D ($4D)
$2C ($4C)
$2B ($4B)
$2A ($4A)
$1E ($3E)
$1D ($3D)
$1C ($3C)
$1B ($3B)
$1A ($3A)
$0E ($2E)
$0D ($2D)
$0C ($2C)
$0B ($2B)
$0A ($2A)
$1F ($3F)
$0F ($2F)
Address)
$29 ($49)
$28 ($48)
$27 ($47)
$26 ($46)
$25 ($45)
$24 ($44)
$23 ($43)
$21 ($41)
$19 ($39)
$18 ($38)
$17 ($37)
$16 ($36)
$15 ($35)
$12 ($32)
$11 ($31)
$10 ($30)
$09 ($29)
$08 ($28)
$07 ($27)
Name
TCNT1H
TCNT1L
OCR1AH
OCR1AL
OCR1BH
OCR1BL
ICR1H
ICR1L
TCCR2
TCNT2
OCR2
WDTCR
EEARH
EEARL
EEDR
EECR
PORTA
DDRA
PINA
PORTB
DDRB
PINB
PORTC
PORTD
DDRD
PIND
SPDR
SPSR
SPCR
UDR
USR
UCR
UBRR
ACSR
ADMUX
Timer/Counter1 Output Compare Register A Low Byte
Watchdog Timer Control Register
EERPOM Address Register Low
Input Pins, Port A
Input Pins, Port B
Input Pins, Port D
Function
Timer/Counter1 High Byte
Timer/Counter1 Low Byte
Timer/Counter1 Output Compare Register A High Byte
Timer/Counter1 Output Compare Register B High Byte
Timer/Counter1 Output Compare Register B Low Byte
Timer/Counter1 Input Capture Register High Byte
Timer/Counter1 Input Capture Register Low Byte
Timer/Counter2 Control Register
Timer/Counter2 (8-bit)
Timer/Counter2 Output Compare Register
EEPROM Address Register High
EEPROM Data Register
EEPROM Control Register
Data Register, Port A
Data Direction Register, Port A
Data Register, Port B
Data Direction Register, Port B
Data Register, Port C
Data Register, Port D
Data Direction Register, Port D
SPI I/O Data Register
SPI Status Register
SPI Control Register
UART I/O Data Register
UART Status Register
UART Control Register
UART Baud Rate Register
Analog Comparator Control and Status Register
ADC Multiplexer Select Register
ATmega103(L)
19

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