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ATtiny26(L)

1477G–AVR–03/05

I/O Memory The I/O space definition of the ATtiny26(L) is shown in Table 2

Table 2. ATtiny26(L) I/O Space

(1)

Address Hex Name Function

$3F ($5F) SREG Status Register

$3D ($5D) SP Stack Pointer

$3B ($5B) GIMSK General Interrupt Mask Register

$3A ($5A) GIFR General Interrupt Flag Register

$39 ($59) TIMSK Timer/Counter Interrupt Mask Register

$38 ($58) TIFR Timer/Counter Interrupt Flag Register

$35 ($55) MCUCR MCU Control Register

$34 ($54) MCUSR MCU Status Register

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

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

$31 ($51) OSCCAL Oscillator Calibration Register

$30 ($50) TCCR1A Timer/Counter1 Control Register A

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

$2E ($4E) TCNT1 Timer/Counter1 (8-bit)

$2D ($4D) OCR1A Timer/Counter1 Output Compare Register A

$2C ($4C) OCR1B Timer/Counter1 Output Compare Register B

$2B ($4B) OCR1C Timer/Counter1 Output Compare Register C

$29 ($29) PLLCSR PLL Control and Status Register

$21 ($41) WDTCR Watchdog Timer Control Register

$1E ($3E) EEAR EEPROM Address Register

$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

$0F ($2F) USIDR Universal Serial Interface Data Register

$0E ($2E) USISR Universal Serial Interface Status Register

$0D ($2D) USICR Universal Serial Interface Control Register

$08 ($28) ACSR Analog Comparator Control and Status Register

$07 ($27) ADMUX ADC Multiplexer Select Register

Atmel ATtiny26 User Manual

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