ATtiny20 Atmel Corporation, ATtiny20 Datasheet - Page 211

• Manufacturer Part Number: ATtiny20
• Manufacturer: Atmel Corporation

Specifications of ATtiny20

• Flash (kbytes): 2 Kbytes
• Pin Count: 14
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 5
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 12
• Ext Interrupts: 12
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.12
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 3
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

8235B–AVR–04/11
BCLR
SBI
CBI
BST
BLD
SEC
CLC
SEN
CLN
SEZ
CLZ
SEI
CLI
SES
CLS
SEV
CLV
SET
CLT
SEH
CLH
DATA TRANSFER INSTRUCTIONS
MOV
LDI
LD
LD
LD
LD
LD
LD
LD
LD
LD
LDS
ST
ST
ST
ST
ST
ST
ST
ST
ST
STS
IN
OUT
PUSH
POP
MCU CONTROL INSTRUCTIONS
BREAK
NOP
SLEEP
WDR
Mnemonics
s
A, b
A, b
Rr, b
Rd, b
Rd, Rr
Rd, K
Rd, X
Rd, X+
Rd, - X
Rd, Y
Rd, Y+
Rd, - Y
Rd, Z
Rd, Z+
Rd, -Z
Rd, k
X, Rr
X+, Rr
- X, Rr
Y, Rr
Y+, Rr
- Y, Rr
Z, Rr
Z+, Rr
-Z, Rr
k, Rr
Rd, A
A, Rr
Rr
Rd
Operands
Flag Clear
Set Bit in I/O Register
Clear Bit in I/O Register
Bit Store from Register to T
Bit load from T to Register
Set Carry
Clear Carry
Set Negative Flag
Clear Negative Flag
Set Zero Flag
Clear Zero Flag
Global Interrupt Enable
Global Interrupt Disable
Set Signed Test Flag
Clear Signed Test Flag
Set Two’s Complement Overflow.
Clear Two’s Complement Overflow
Set T in SREG
Clear T in SREG
Set Half Carry Flag in SREG
Clear Half Carry Flag in SREG
Copy Register
Load Immediate
Load Indirect
Load Indirect and Post-Increment
Load Indirect and Pre-Decrement
Load Indirect
Load Indirect and Post-Increment
Load Indirect and Pre-Decrement
Load Indirect
Load Indirect and Post-Increment
Load Indirect and Pre-Decrement
Store Direct from SRAM
Store Indirect
Store Indirect and Post-Increment
Store Indirect and Pre-Decrement
Store Indirect
Store Indirect and Post-Increment
Store Indirect and Pre-Decrement
Store Indirect
Store Indirect and Post-Increment.
Store Indirect and Pre-Decrement
Store Direct to SRAM
In from I/O Location
Out to I/O Location
Push Register on Stack
Pop Register from Stack
Break
No Operation
Sleep
Watchdog Reset
Description
SREG(s) ← 0
I/O(A, b) ← 1
I/O(A, b) ← 0
T ← Rr(b)
Rd(b) ← T
C ← 1
C ← 0
N ← 1
N ← 0
Z ← 1
Z ← 0
I ← 1
I ← 0
S ← 1
S ← 0
V ← 1
V ← 0
T ← 1
T ← 0
H ← 1
H ← 0
Rd ← Rr
Rd ← K
Rd ← (X)
Rd ← (X), X ← X + 1
X ← X - 1, Rd ← (X)
Rd ← (Y)
Rd ← (Y), Y ← Y + 1
Y ← Y - 1, Rd ← (Y)
Rd ← (Z)
Rd ← (Z), Z ← Z+1
Z ← Z - 1, Rd ← (Z)
Rd ← (k)
(X) ← Rr
(X) ← Rr, X ← X + 1
X ← X - 1, (X) ← Rr
(Y) ← Rr
(Y) ← Rr, Y ← Y + 1
Y ← Y - 1, (Y) ← Rr
(Z) ← Rr
(Z) ← Rr, Z ← Z + 1
Z ← Z - 1, (Z) ← Rr
(k) ← Rr
Rd ← I/O (A)
STACK ← Rr
Rd ← STACK
(see specific descr. for Break)
(see specific descr. for Sleep)
(see specific descr. for WDR)
I/O (A) ← Rr
Operation
SREG(s)
None
None
T
None
C
C
N
N
Z
Z
I
I
S
S
V
V
T
T
H
H
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Flags
ATtiny20
#Clocks
2/3
2/3
2/3
1/2
1/2
1/2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
2
1
1
2
1
1
2
1
1
1
2
2
1
1
1
1
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