Atmel AVR ATtiny15L

10
ATtiny15L
1187H–AVR–09/07
Figure 11. Single Cycle ALU Operation
I/O Memory The I/O space definition of the ATtiny15L is shown in Table 2.
System Clock Ø
Total Execution Time
R
egister Operands Fetch
ALU Operation Execute
Result Write Back
T1 T2 T3 T4
Table 2. ATtiny15L I/O Space
(1)
Address Hex Name Function
$3F SREG Status Register
$3B GIMSK General Interrupt Mask Register
$3A GIFR General Interrupt Flag Register
$39 TIMSK Timer/Counter Interrupt Mask Register
$38 TIFR Timer/Counter Interrupt Flag Register
$35 MCUCR MCU Control Register
$34 MCUSR MCU Status Register
$33 TCCR0 Timer/Counter0 Control Register
$32 TCNT0 Timer/Counter0 (8-bit)
$31 OSCCAL Oscillator Calibration Register
$30 TCCR1 Timer/Counter1 Control Register
$2F TCNT1 Timer/Counter1 (8-bit)
$2E OCR1A Timer/Counter1 Output Compare Register A
$2D OCR1B Timer/Counter1 Output Compare Register B
$2C SFIOR Special Function I/O Register
$21 WDTCR Watchdog Timer Control Register
$1E EEAR EEPROM Address Register
$1D EEDR EEPROM Data Register
$1C EECR EEPROM Control Register
$18 PORTB Data Register, Port B
$17 DDRB Data Direction Register, Port B
$16 PINB Input Pins, Port B
$08 ACSR Analog Comparator Control and Status Register
$07 ADMUX ADC Multiplexer Select Register