Rainbow-electronics ATtiny12 Manual do Utilizador descarregar pdf (Página 79)

ATtiny11/12

1006C–09/01

Notes: 1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses

should never be written.

2. Some of the status flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on

all bits in the I/O register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions

work with registers $00 to $1F only.

Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page

$3F SREG I T H S V N Z C page 14

$3E Reserved

$3D Reserved

$3C Reserved

$3B GIMSK - INT0 PCIE - - - - - page 25

$3A GIFR

-INTF0PCIF - - - - - page 26

$39 TIMSK

- - - - - -TOIE0- page 26

$38 TIFR - - - - - -TOV0- page 27

$37 Reserved

$36 Reserved

$35 MCUCR - -SESM- - ISC01 ISC00 page 28

$34 MCUSR - - - - - - EXTRF PORF page 23

$33 TCCR0 - - - - - CS02 CS01 CS00 page 32

$32 TCNT0 Timer/Counter0 (8 Bit) page 33

$31 Reserved

$30 Reserved

... Reserved

$22 Reserved

$21 WDTCR - - - WDTOE WDE WDP2 WDP1 WDP0 page 34

$20 Reserved

$1F Reserved

$1E Reserved

$1D Reserved

$1C Reserved

$1B Reserved

$1A Reserved

$19 Reserved

$18 PORTB - - - PORTB4 PORTB3 PORTB2 PORTB1 PORTB0 page 42

$17 DDRB - - - DDB4 DDB3 DDB2 DDB1 DDB0 page 42

$16 PINB - - PINB5 PINB4 PINB3 PINB2 PINB1 PINB0 page 42

$15 Reserved

... Reserved

$0A Reserved

$09 Reserved

$08 ACSR ACD - ACO ACI ACIE - ACIS1 ACIS0 page 39

… Reserved

$00 Reserved

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 85 86

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