Datasheet
8
8246BS–AVR–09/11
ATtiny2313A/4313
4. Register Summary
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page
0x3F (0x5F) SREG I T H S V N Z C 9
0x3E (0x5E) Reserved – – – – – – – –
0x3D (0x5D) SPL SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0 12
0x3C (0x5C) OCR0B Timer/Counter0 – Compare Register B 85
0x3B (0x5B) GIMSK INT1 INT0 PCIE0 PCIE2 PCIE1 – – –50
0x3A (0x5A) GIFR INTF1 INTF0 PCIF0 PCIF2 PCIF1 – – –51
0x39 (0x59) TIMSK TOIE1 OCIE1A OCIE1B – ICIE1 OCIE0B TOIE0 OCIE0A 86, 115
0x38 (0x58) TIFR TOV1 OCF1A OCF1B – ICF1 OCF0B TOV0 OCF0A 86, 115
0x37 (0x57) SPMCSR –
–
RSIG CTPB RFLB PGWRT PGERS SPMEN 175
0x36 (0x56) OCR0A Timer/Counter0 – Compare Register A 85
0x35 (0x55) MCUCR PUD SM1 SE SM0 ISC11 ISC10 ISC01 ISC00 36, 50, 68
0x34 (0x54) MCUSR – – – – WDRF BORF EXTRF PORF 44
0x33 (0x53) TCCR0B FOC0A FOC0B – – WGM02 CS02 CS01 CS00 84
0x32 (0x52) TCNT0 Timer/Counter0 (8-bit) 85
0x31 (0x51) OSCCAL – CAL6 CAL5 CAL4 CAL3 CAL2 CAL1 CAL0 31
0x30 (0x50) TCCR0A COM0A1 COM0A0 COM0B1 COM0B0
– –WGM01WGM00 81
0x2F (0x4F) TCCR1A COM1A1 COM1A0 COM1B1 COM1B0
– – WGM11 WGM10 110
0x2E (0x4E) TCCR1B ICNC1 ICES1 – WGM13 WGM12 CS12 CS11 CS10 112
0x2D (0x4D) TCNT1H Timer/Counter1 – Counter Register High Byte 114
0x2C (0x4C) TCNT1L Timer/Counter1 – Counter Register Low Byte 114
0x2B (0x4B) OCR1AH Timer/Counter1 – Compare Register A High Byte 114
0x2A (0x4A) OCR1AL Timer/Counter1 – Compare Register A Low Byte 114
0x29 (0x49) OCR1BH Timer/Counter1 – Compare Register B High Byte 114
0x28 (0x48) OCR1BL Timer/Counter1 – Compare Register B Low Byte 114
0x27 (0x47) Reserved – – – – – – – –
0x26 (0x46) CLKPR CLKPCE – – – CLKPS3 CLKPS2 CLKPS1 CLKPS0 31
0x25 (0x45) ICR1H Timer/Counter1 - Input Capture Register High Byte 114
0x24 (0x44) ICR1L Timer/Counter1 - Input Capture Register Low Byte 114
0x23 (0x43) GTCCR – – – – – – – PSR10 118
0x22 (ox42) TCCR1C FOC1A FOC1B – – – – – – 113
0x21 (0x41) WDTCSR WDIF WDIE WDP3 WDCE WDE WDP2 WDP1 WDP0 44
0x20 (0x40) PCMSK0 PCINT7 PCINT6 PCINT5 PCINT4 PCINT3 PCINT2 PCINT1 PCINT0 53
0x1F (0x3F) Reserved – – – – – – – –
0x1E (0x3E) EEAR – EEPROM Address Register 23
0x1D (0x3D) EEDR EEPROM Data Register 23
0x1C (0x3C) EECR – – EEPM1 EEPM0 EERIE EEMPE EEPE EERE 23
0x1B (0x3B) PORTA – – – – – PORTA2 PORTA1 PORTA0 68
0x1A (0x3A) DDRA – – – – – DDA2 DDA1 DDA0 68
0x19 (0x39) PINA – – – – – PINA2 PINA1 PINA0 69
0x18 (0x38) PORTB PORTB7 PORTB6 PORTB5 PORTB4 PORTB3 PORTB2 PORTB1 PORTB0 69
0x17 (0x37) DDRB DDB7 DDB6 DDB5 DDB4 DDB3 DDB2 DDB1 DDB0 69
0x16 (0x36) PINB PINB7 PINB6 PINB5 PINB4 PINB3 PINB2 PINB1 PINB0 69
0x15 (0x35) GPIOR2 General Purpose I/O Register 2 24
0x14 (0x34) GPIOR1 General Purpose I/O Register 1 24
0x13 (0x33) GPIOR0 General Purpose I/O Register 0 24
0x12 (0x32) PORTD
– PORTD6 PORTD5 PORTD4 PORTD3 PORTD2 PORTD1 PORTD0 69
0x11 (0x31) DDRD
– DDD6 DDD5 DDD4 DDD3 DDD2 DDD1 DDD0 69
0x10 (0x30) PIND
– PIND6 PIND5 PIND4 PIND3 PIND2 PIND1 PIND0 69
0x0F (0x2F) USIDR USI Data Register 165
0x0E (0x2E) USISR USISIF USIOIF USIPF USIDC USICNT3 USICNT2 USICNT1 USICNT0 164
0x0D (0x2D) USICR USISIE USIOIE USIWM1 USIWM0 USICS1 USICS0 USICLK USITC 162
0x0C (0x2C) UDR UART Data Register (8-bit) 136
0x0B (0x2B) UCSRA RXC TXC UDRE FE DOR UPE U2X MPCM 137
0x0A (0x2A) UCSRB RXCIE TXCIE UDRIE RXEN TXEN UCSZ2 RXB8 TXB8 138
0x09 (0x29) UBRRL
UBRRH[7:0]
140
0x08 (0x28) ACSR ACD ACBG ACO ACI ACIE ACIC ACIS1 ACIS0 167
0x07 (0x27) BODCR – – – – – –BODSBODSE 37
0x06 (0x26) PRR – – – – PRTIM1 PRTIM0 PRUSI PRUSART 36
0x05 (0x25) PCMSK2
– PCINT17 PCINT16 PCINT15 PCINT14 PCINT13 PCINT12 PCINT11 52
0x04 (0x24) PCMSK1 – – – – – PCINT10 PCINT9 PCINT8 52
0x03 (0x23) UCSRC UMSEL1 UMSEL0 UPM1 UPM0 USBS UCSZ1 UCSZ0 UCPOL 139
0x02 (0x22) UBRRH – – – –
UBRRH[11:8]
140
0x01 (0x21) DIDR – – – – – – AIN1D AIN0D 168
0x00 (0x20) USIBR
USI Buffer Register
166