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AT90C8534
49
Note: For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
should never be written.
AT90C8534 Register Summary
Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page
$3F ($5F) SREG I T H S V N Z C page 17
$3E ($5E) SPH
- - - - - - - SP8 page 17
$3D ($5D) SPL SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0 page 17
$3C ($5C) Reserved
$3B ($5B) GIMSK INT1 INT0 - - - - - - page 21
$3A ($5A) GIFR INTF1 INTF0
page 21
$39 ($59) TIMSK
- - - - -TOIE1- TOIE0 page 22
$38 ($58) TIFR
- - - - -TOV1- TOV0 page 22
$37 ($57) Reserved
$36 ($56) Reserved
$35 ($55) MCUCR -SESM - -ISC1- ISC0 page 23
$34 ($54) Reserved
$33 ($53) TCCR0 - - - - - CS02 CS01 CS00 page 25
$32 ($52) TCNT0 Timer/Counter0 (8 Bits) page 26
$31 ($51) Reserved
$30 ($50) Reserved
$2F ($4F) Reserved
$2E ($4E) TCCR1 - - - - - CS12 CS11 CS10 page 26
$2D ($4D) TCNT1H Timer/Counter1 - Counter Register High Byte page 27
$2C ($4C) TCNT1L Timer/Counter1 - Counter Register Low Byte page 27
$2B ($4B) Reserved
$2A ($4A) Reserved
$29 ($49) Reserved
$28 ($48) Reserved
$27 ($47) Reserved
$26 ($46) Reserved
$25 ($45) Reserved
$24 ($44) Reserved
$23 ($43) Reserved
$22 ($42) Reserved
$21 ($41) Reserved
$20 ($40) Reserved
$1F ($3F) EEARH - - - - - - - EEAR8 page 28
$1E ($3E) EEARL EEAR7 EEAR6 EEAR5 EEAR4 EEAR3 EEAR2 EEAR1 EEAR0 page 28
$1D ($3D) EEDR EEPROM Data Register page 28
$1C ($3C) EECR
- - - - EERIE EEMWE EEWE EERE page 28
$1B ($3B) PORTA
- PORTA6 PORTA5 PORTA4 PORTA3 PORTA2 PORTA1 PORTA0 page 37
$1A ($3A) DDRA
- DDA6 DDA5 DDA4 DDA3 DDA2 DDA1 DDA0 page 37
$19 ($39) Reserved
… Reserved
$11 ($11) Reserved
$10 ($30) GIPR - - - - IPIN1 IPIN0 - - page 21
$0F ($2F) Reserved
$0E ($2E) Reserved
$0D ($2D) Reserved
$0C ($2C) Reserved
$0B ($2B) Reserved
$0A ($2A) Reserved
$09 ($29) Reserved
$08 ($28) Reserved
$07 ($27) ADMUX - - - - - MUX2 MUX1 MUX0 page 34
$06 ($26) ADCSR ADEN ADSC ADRF ADIF ADIE ADPS2 ADPS1 ADPS0 page 34
$05 ($25) ADCH
- - - - - - ADC9 ADC8 page 35
$04 ($24) ADCL ADC7 ADC6 ADC5 ADC4 ADC3 ADC2 ADC1 ADC0 page 35
$03 ($20) Reserved
$02 ($22) Reserved
$01 ($21) Reserved
$00 ($20) Reserved