ATTINY12 ATMEL Corporation, ATTINY12 Datasheet - Page 81

• Manufacturer Part Number: ATTINY12
• Description: 8-bit AVR Microcontroller with 1K Byte Flash
• Manufacturer: ATMEL Corporation

Register Summary ATtiny11
Notes:
1006D–AVR–07/03
Address
$3D
$3C
$1D
$1C
$3F
$3E
$3B
$3A
$39
$38
$37
$36
$35
$34
$33
$32
$31
$30
$22
$21
$20
$1F
$1E
$1B
$1A
$19
$18
$17
$16
$15
$0A
$09
$08
$00
…
...
...
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
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
should never be written.
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.
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Name
MCUCR
MCUSR
WDTCR
PORTB
GIMSK
TCCR0
TCNT0
TIMSK
SREG
DDRB
ACSR
GIFR
TIFR
PINB
Timer/Counter0 (8 Bit)
Bit 7
ACD
I
-
-
-
-
-
-
-
-
-
-
-
Bit 6
INTF0
INT0
T
-
-
-
-
-
-
-
-
-
-
Bit 5
PINB5
PCIE
PCIF
ACO
SE
H
-
-
-
-
-
-
-
PORTB4
WDTOE
Bit 4
PINB4
DDB4
ACI
SM
S
-
-
-
-
-
-
PORTB3
Bit 3
PINB3
DDB3
WDE
ACIE
V
-
-
-
-
-
-
-
PORTB2
Bit 2
WDP2
PINB2
DDB2
CS02
N
-
-
-
-
-
-
-
PORTB1
EXTRF
Bit 1
TOIE0
ISC01
WDP1
PINB1
ACIS1
TOV0
DDB1
CS01
Z
-
-
PORTB0
Bit 0
ISC00
PORF
WDP0
PINB0
ACIS0
DDB0
CS00
C
-
-
-
-
ATtiny11/12
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