Datasheet

344
8023FS–AVR–07/09
ATmega325P/3250P
(0x85)
TCNT1H Timer/Counter1 High 132
(0x84)
TCNT1L Timer/Counter1 Low 132
(0x83)
Reserved - - - - - - - -
(0x82)
TCCR1C FOC1A FOC1B - - - - - -131
(0x81)
TCCR1B ICNC1 ICES1 - WGM13WGM12CS12CS11CS10 130
(0x80)
TCCR1A COM1A1 COM1A0 COM1B1 COM1B0 - -WGM11WGM10128
(0x7F)
DIDR1
- - - - - - AIN1D AIN0D 205
(0x7E)
DIDR0 ADC7D ADC6D ADC5D ADC4D ADC3D ADC2D ADC1D ADC0D 222
(0x7D)
Reserved
- - - - - - - -
(0x7C)
ADMUX REFS1 REFS0 ADLAR MUX4 MUX3 MUX2 MUX1 MUX0 218
(0x7B)
ADCSRB -ACME- - - ADTS2 ADTS1 ADTS0 204/222
(0x7A)
ADCSRA ADEN ADSC ADATE ADIF ADIE ADPS2 ADPS1 ADPS0 220
(0x79)
ADCH ADC Data Register High 221
(0x78)
ADCL ADC Data Register Low 221
(0x77)
Reserved - - - - - - - -
(0x76)
Reserved - - - - - - - -
(0x75)
Reserved - - - - - - - -
(0x74)
Reserved - - - - - - - -
(0x73)
PCMSK3 - PCINT30 PCINT29 PCINT28 PCINT27 PCINT26 PCINT25 PCINT24 62
(0x72)
Reserved - - - - - - - -
(0x71)
Reserved - - - - - - - -
(0x70)
TIMSK2 - - - - - - OCIE2A TOIE2 152
(0x6F)
TIMSK1 - -ICIE1- - OCIE1B OCIE1A TOIE1 133
(0x6E)
TIMSK0 - - - - - - OCIE0A TOIE0 104
(0x6D)
PCMSK2 PCINT23 PCINT22 PCINT21 PCINT20 PCINT19 PCINT18 PCINT17 PCINT16 62
(0x6C)
PCMSK1 PCINT15 PCINT14 PCINT13 PCINT12 PCINT11 PCINT10 PCINT9 PCINT8 62
(0x6B)
PCMSK0 PCINT7 PCINT6 PCINT5 PCINT4 PCINT3 PCINT2 PCINT1 PCINT0 62
(0x6A)
Reserved - - - - - - - -
(0x69)
EICRA - - - - - -ISC01ISC0059
(0x68)
Reserved - - - - - - - -
(0x67)
Reserved - - - - - - - -
(0x66)
OSCCAL Oscillator Calibration Register [CAL7..0] 36
(0x65)
Reserved - - - - - - - -
(0x64)
PRR - - - - PRTIM1 PRSPI PSUSART0 PRADC 44
(0x63)
Reserved - - - - - - - -
(0x62)
Reserved - - - - - - - -
(0x61)
CLKPR CLKPCE - - - CLKPS3 CLKPS2 CLKPS1 CLKPS0 36
(0x60)
WDTCR - - - WDCE WDE WDP2 WDP1 WDP0 51
0x3F (0x5F)
SREG I T H S V N Z C 13
0x3E (0x5E)
SPH Stack Pointer High 15
0x3D (0x5D)
SPL Stack Pointer Low 15
0x3C (0x5C)
Reserved
- - - - - - - -
0x3B (0x5B)
Reserved - - - - - - - -
0x3A (0x5A)
Reserved
- - - - - - - -
0x39 (0x59)
Reserved
- - - - - - - -
0x38 (0x58)
Reserved
- - - - - - - -
0x37 (0x57)
SPMCSR SPMIE RWWSB
- RWWSRE BLBSET PGWRT PGERS SPMEN 269
0x36 (0x56)
Reserved
0x35 (0x55)
MCUCR JTD BODS BODSE PUD
- - IVSEL IVCE 56/85/255
0x34 (0x54)
MCUSR
- - - JTRF WDRF BORF EXTRF PORF 50
0x33 (0x53)
SMCR - - - - SM2 SM1 SM0 SE 43
0x32 (0x52)
Reserved
- - - - - - - -
0x31 (0x51)
OCDR IDRD/OCDR7 OCDR6 OCDR5 OCDR4 OCDR3 OCDR2 OCDR1 OCDR0 228
0x30 (0x50)
ACSR ACD ACBG ACO ACI ACIE ACIC ACIS1 ACIS0 204
0x2F (0x4F)
Reserved - - - - - - - -
0x2E (0x4E)
SPDR SPI Data Register 162
0x2D (0x4D)
SPSR SPIF WCOL
- - - - - SPI2X 162
0x2C (0x4C)
SPCR SPIE SPE DORD MSTR CPOL CPHA SPR1 SPR0 160
0x2B (0x4B)
GPIOR2 General Purpose I/O Register 27
0x2A (0x4A)
GPIOR1 General Purpose I/O Register 27
0x29 (0x49)
Reserved - - - - - - - -
0x28 (0x48)
Reserved
- - - - - - - -
0x27 (0x47)
OCR0A Timer/Counter0 Output Compare A 104
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page