Datasheet

7
8048CS–AVR–02/12
ATtiny43U
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 Page 9
0x3E (0x5E) SPH
–
– – – – – – SP8 Page 12
0x3D (0x5D) SPL SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0 Page 12
0x3C (0x5C) OCR0B
Timer/Counter0 – Output Compare Register B
Page 97
0x3B (0x5B) GIMSK – INT0 PCIE1
PCIE0
– – – – Page 61
0x3A (0x5A) GIFR – INTF0 PCIF1
PCIF0
– – – – Page 61
0x39 (0x59) TIMSK0 – – – – – OCIE0B OCIE0A TOIE0 Page 97
0x38 (0x58) TIFR0 – – – – – OCF0B OCF0A TOV0 Page 98
0x37 (0x57) SPMCSR – – – CTPB RFLB PGWRT PGERS SPMEN Page 139
0x36 (0x56) OCR0A
Timer/Counter0 – Output Compare Register A
Page 97
0x35 (0x55) MCUCR BODS PUD SE SM1 SM0 BODSE ISC01 ISC00 Pages 33, 60, 79
0x34 (0x54) MCUSR – – – – WDRF BORF EXTRF PORF Page 55
0x33 (0x53) TCCR0B FOC0A FOC0B – – WGM02 CS02 CS01 CS00 Page 95
0x32 (0x52) TCNT0 Timer/Counter0 Page 96
0x31 (0x51) OSCCALCAL7CAL6CAL5CAL4CAL3CAL2CAL1CAL0 Page 28
0x30 (0x50) TCCR0A COM0A1 COM0A0 COM0B1 COM0B0 – WGM01 WGM00 Page 92
0x2F (0x4F) TCCR1A COM1A1 COM1A0 COM1B1 COM1B0 – WGM11 WGM10 Page 92
0x2E (0x4E) TCCR1B FOC1A FOC1B – – WGM12 CS12 CS11 CS10 Page 95
0x2D (0x4D) TCNT1 Timer/Counter1 Page 97
0x2C (0x4C) OCR1A Timer/Counter1 – Output Compare Register A Page 97
0x2B (0x4B) OCR1B Timer/Counter1 – Output Compare Register B Page 97
0x2A (0x4A) Reserved –
0x29 (0x49) Reserved –
0x28 (0x48) Reserved –
0x27 (0x47) DWDR DWDR[7:0] Page 134
0x26 (0x46) CLKPR CLKPCE – – – CLKPS3 CLKPS2 CLKPS1 CLKPS0 Page 28
0x25 (0x45) Reserved –
0x24 (0x44) Reserved –
0x23 (0x43) GTCCR TSM – – – – – – PSR10 Page 101
0x22 (0x42) Reserved
–
0x21 (0x41) WDTCSR WDIF WDIE WDP3 WDCE WDE WDP2 WDP1 WDP0 Page 55
0x20 (0x40) PCMSK1 PCINT15 PCINT14 PCINT13 PCINT12 PCINT11 PCINT10 PCINT9 PCINT8 Page 62
0x1F (0x3F) Reserved
–
0x1E (0x3E) EEAR – – EEAR5 EEAR4 EEAR3 EEAR2 EEAR1 EEAR0 Page 20
0x1D (0x3D) EEDR EEPROM Data Register Page 21
0x1C (0x3C) EECR – – EEPM1 EEPM0 EERIE EEMPE EEPE EERE Page 21
0x1B (0x3B) PORTA PORTA7 PORTA6 PORTA5 PORTA4 PORTA3 PORTA2 PORTA1 PORTA0 Page 79
0x1A (0x3A) DDRA DDA7 DDA6 DDA5 DDA4 DDA3 DDA2 DDA1 DDA0 Page 79
0x19 (0x39) PINA PINA7 PINA6 PINA5 PINA4 PINA3 PINA2 PINA1 PINA0 Page 79
0x18 (0x38) PORTB PORTB7 PORTB6 PORTB5 PORTB4 PORTB3 PORTB2 PORTB1 PORTB0 Page 79
0x17 (0x37) DDRB DDB7 DDB6 DDB5 DDB4 DDB3 DDB2 DDB1 DDB0 Page 79
0x16 (0x36) PINB PINB7 PINB6 PINB5 PINB4 PINB3 PINB2 PINB1 PINB0 Page 79
0x15 (0x35) GPIOR2 General Purpose I/O Register 2 Page 22
0x14 (0x34) GPIOR1 General Purpose I/O Register 1 Page 22
0x13 (0x33) GPIOR0 General Purpose I/O Register 0 Page 22
0x12 (0x32) PCMSK0 PCINT7 PCINT6 PCINT5 PCINT4 PCINT3 PCINT2 PCINT1 PCINT0 Page 62
0x11 (0x31) Reserved
–
0x10 (0x30) USIBR USI Buffer Register Page 113
0x0F (0x2F) USIDR USI Data Register Page 112
0x0E (0x2E) USISR USISIF USIOIF USIPF USIDC USICNT3 USICNT2 USICNT1 USICNT0 Page 111
0x0D (0x2D) USICR USISIE USIOIE USIWM1 USIWM0 USICS1 USICS0 USICLK USITC Page 109
0x0C (0x2C) TIMSK1 – – – – – OCIE1B OCIE1A TOIE1 Page 98
0x0B (0x2B) TIFR1 – – – – – OCF1B OCF1A TOV1 Page 98
0x0A (0x2A) Reserved
–
0x09 (0x29) Reserved
–
0x08 (0x28) ACSR ACD ACBG
ACO ACI ACIE – ACIS1 ACIS0 Page 115
0x07 (0x27) ADMUX –REFS – – –MUX2MUX1 MUX0 Page 128
0x06 (0x26) ADCSRA ADEN ADSC
ADATE ADIF ADIE ADPS2 ADPS1 ADPS0 Page 129
0x05 (0x25) ADCH ADC Data Register High Byte Page 130
0x04 (0x24) ADCL ADC Data Register Low Byte Page 130
0x03 (0x23) ADCSRB BS ACME –ADLAR– ADTS2 ADTS1 ADTS0 Pages 48, 115, 131
0x02 (0x22) Reserved
–
0x01 (0x21) DIDR0
AIN1D AIN0D ADC3D ADC2D ADC1D ADC0D Pages 116, 132
0x00 (0x20) PRR PRE2 PRE1 PRE0 – PRTIM1 PRTIM0 PRUSI PRADC Page 34