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ATTINY20-CCUR Datasheet(PDF) 9 Page - ATMEL Corporation |
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ATTINY20-CCUR Datasheet(HTML) 9 Page - ATMEL Corporation |
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9 / 18 page  9 8235AS–AVR–03/10 ATtiny20 5. Instruction Set Summary Mnemonics Operands Description Operation Flags #Clocks ARITHMETIC AND LOGIC INSTRUCTIONS ADD Rd, Rr Add without Carry Rd ← Rd + Rr Z,C,N,V,S,H 1 ADC Rd, Rr Add with Carry Rd ← Rd + Rr + C Z,C,N,V,S,H 1 SUB Rd, Rr Subtract without Carry Rd ← Rd - Rr Z,C,N,V,S,H 1 SUBI Rd, K Subtract Immediate Rd ← Rd - K Z,C,N,V,S,H 1 SBC Rd, Rr Subtract with Carry Rd ← Rd - Rr - C Z,C,N,V,S,H 1 SBCI Rd, K Subtract Immediate with Carry Rd ← Rd - K - C Z,C,N,V,S,H 1 AND Rd, Rr Logical AND Rd ← Rd • Rr Z,N,V,S 1 ANDI Rd, K Logical AND with Immediate Rd ← Rd • K Z,N,V,S 1 OR Rd, Rr Logical OR Rd ← Rd v Rr Z,N,V,S 1 ORI Rd, K Logical OR with Immediate Rd ← Rd v K Z,N,V,S 1 EOR Rd, Rr Exclusive OR Rd ← Rd ⊕ Rr Z,N,V,S 1 COM Rd One’s Complement Rd ← $FF − Rd Z,C,N,V,S 1 NEG Rd Two’s Complement Rd ← $00 − Rd Z,C,N,V,S,H 1 SBR Rd,K Set Bit(s) in Register Rd ← Rd v K Z,N,V,S 1 CBR Rd,K Clear Bit(s) in Register Rd ← Rd • ($FFh - K) Z,N,V,S 1 INC Rd Increment Rd ← Rd + 1 Z,N,V,S 1 DEC Rd Decrement Rd ← Rd − 1 Z,N,V,S 1 TST Rd Test for Zero or Minus Rd ← Rd • Rd Z,N,V,S 1 CLR Rd Clear Register Rd ← Rd ⊕ Rd Z,N,V,S 1 SER Rd Set Register Rd ← $FF None 1 BRANCH INSTRUCTIONS RJMP k Relative Jump PC ← PC + k + 1 None 2 IJMP Indirect Jump to (Z) PC(15:0) ← Z, PC(21:16) ← 0None 2 RCALL k Relative Subroutine Call PC ← PC + k + 1 None 3/4 ICALL Indirect Call to (Z) PC(15:0) ← Z, PC(21:16) ← 0None 3/4 RET Subroutine Return PC ← STACK None 4/5 RETI Interrupt Return PC ← STACK I 4/5 CPSE Rd,Rr Compare, Skip if Equal if (Rd = Rr) PC ← PC + 2 or 3 None 1/2/3 CP Rd,Rr Compare Rd − Rr Z, C,N,V,S,H 1 CPC Rd,Rr Compare with Carry Rd − Rr − C Z, C,N,V,S,H 1 CPI Rd,K Compare with Immediate Rd − K Z, C,N,V,S,H 1 SBRC Rr, b Skip if Bit in Register Cleared if (Rr(b)=0) PC ← PC + 2 or 3 None 1/2/3 SBRS Rr, b Skip if Bit in Register is Set if (Rr(b)=1) PC ← PC + 2 or 3 None 1/2/3 SBIC A, b Skip if Bit in I/O Register Cleared if (I/O(A,b)=0) PC ← PC + 2 or 3 None 1/2/3 SBIS A, b Skip if Bit in I/O Register is Set if (I/O(A,b)=1) PC ← PC + 2 or 3 None 1/2/3 BRBS s, k Branch if Status Flag Set if (SREG(s) = 1) then PC ←PC+k + 1 None 1/2 BRBC s, k Branch if Status Flag Cleared if (SREG(s) = 0) then PC ←PC+k + 1 None 1/2 BREQ k Branch if Equal if (Z = 1) then PC ← PC + k + 1 None 1/2 BRNE k Branch if Not Equal if (Z = 0) then PC ← PC + k + 1 None 1/2 BRCS k Branch if Carry Set if (C = 1) then PC ← PC + k + 1 None 1/2 BRCC k Branch if Carry Cleared if (C = 0) then PC ← PC + k + 1 None 1/2 BRSH k Branch if Same or Higher if (C = 0) then PC ← PC + k + 1 None 1/2 BRLO k Branch if Lower if (C = 1) then PC ← PC + k + 1 None 1/2 BRMI k Branch if Minus if (N = 1) then PC ← PC + k + 1 None 1/2 BRPL k Branch if Plus if (N = 0) then PC ← PC + k + 1 None 1/2 BRGE k Branch if Greater or Equal, Signed if (N ⊕ V= 0) then PC ← PC + k + 1 None 1/2 BRLT k Branch if Less Than Zero, Signed if (N ⊕ V= 1) then PC ← PC + k + 1 None 1/2 BRHS k Branch if Half Carry Flag Set if (H = 1) then PC ← PC + k + 1 None 1/2 BRHC k Branch if Half Carry Flag Cleared if (H = 0) then PC ← PC + k + 1 None 1/2 BRTS k Branch if T Flag Set if (T = 1) then PC ← PC + k + 1 None 1/2 BRTC k Branch if T Flag Cleared if (T = 0) then PC ← PC + k + 1 None 1/2 BRVS k Branch if Overflow Flag is Set if (V = 1) then PC ← PC + k + 1 None 1/2 BRVC k Branch if Overflow Flag is Cleared if (V = 0) then PC ← PC + k + 1 None 1/2 BRIE k Branch if Interrupt Enabled if ( I = 1) then PC ← PC + k + 1 None 1/2 BRID k Branch if Interrupt Disabled if ( I = 0) then PC ← PC + k + 1 None 1/2 BIT AND BIT-TEST INSTRUCTIONS LSL Rd Logical Shift Left Rd(n+1) ← Rd(n), Rd(0) ← 0 Z,C,N,V,H 1 LSR Rd Logical Shift Right Rd(n) ← Rd(n+1), Rd(7) ← 0 Z,C,N,V 1 ROL Rd Rotate Left Through Carry Rd(0) ←C,Rd(n+1)← Rd(n),C←Rd(7) Z,C,N,V,H 1 ROR Rd Rotate Right Through Carry Rd(7) ←C,Rd(n)← Rd(n+1),C←Rd(0) Z,C,N,V 1 ASR Rd Arithmetic Shift Right Rd(n) ← Rd(n+1), n=0..6 Z,C,N,V 1 SWAP Rd Swap Nibbles Rd(3..0) ←Rd(7..4),Rd(7..4)←Rd(3..0) None 1 BSET s Flag Set SREG(s) ← 1 SREG(s) 1 |
Similar Part No. - ATTINY20-CCUR |
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Similar Description - ATTINY20-CCUR |
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