Datasheet

ATmega323(L)

1457E–11/01

$36 ($56) TWCR 2-wire Serial Interface Control Register

$35 ($55) MCUCR MCU general Control Register

$34 ($54) MCUCSR MCU general Control and Status Register

$33 ($53) TCCR0 Timer/Counter0 Control Register

$32 ($52) TCNT0 Timer/Counter0 (8-bit)

$31 ($51)

(1)

OSCCAL Oscillator Calibration Register

OCDR On-chip Debug Register

$30 ($50) SFIOR Special Function I/O Register

$2F ($4F) TCCR1A Timer/Counter1 Control Register A

$2E ($4E) TCCR1B Timer/Counter1 Control Register B

$2D ($4D) TCNT1H Timer/Counter1 High Byte

$2C ($4C) TCNT1L Timer/Counter1 Low Byte

$2B ($4B) OCR1AH Timer/Counter1 Output Compare Register A High Byte

$2A ($4A) OCR1AL Timer/Counter1 Output Compare Register A Low Byte

$29 ($49) OCR1BH Timer/Counter1 Output Compare Register B High Byte

$28 ($48) OCR1BL Timer/Counter1 Output Compare Register B Low Byte

$27 ($47) ICR1H T/C 1 Input Capture Register High Byte

$26 ($46) ICR1L T/C 1 Input Capture Register Low Byte

$25 ($45) TCCR2 Timer/Counter2 Control Register

$24 ($44) TCNT2 Timer/Counter2 (8-bit)

$23 ($43) OCR2 Timer/Counter2 Output Compare Register

$22 ($42) ASSR Asynchronous Mode Status Register

$21 ($41) WDTCR Watchdog Timer Control Register

$20 ($40)

(2)

UBRRH USART Baud Rate Register High Byte

UCSRC USART Control and Status Register C

$1F ($3F) EEARH EEPROM Address Register High Byte

$1E ($3E) EEARL EEPROM Address Register Low Byte

$1D ($3D) EEDR EEPROM Data Register

$1C ($3C) EECR EEPROM Control Register

$1B ($3B) PORTA Data Register, Port A

$1A ($3A) DDRA Data Direction Register, Port A

$19 ($39) PINA Input Pins, Port A

$18 ($38) PORTB Data Register, Port B

$17 ($37) DDRB Data Direction Register, Port B

$16 ($36) PINB Input Pins, Port B

Table 2. ATmega323 I/O Space (Continued)

I/O Address (SRAM

Address) Name Function