ATMEGA8U2-MU Atmel, ATMEGA8U2-MU Datasheet - Page 292
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ATMEGA8U2-MU
Manufacturer Part Number
ATMEGA8U2-MU
Description
MCU AVR 8K FLASH USB 32-VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8U2-MU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Processor Series
ATMEGA8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPI, UART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
22
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, AT90USBKEY, ATEVK525
Minimum Operating Temperature
- 40 C
Package
32QFN EP
Device Core
AVR
Family Name
ATmega
Maximum Speed
16 MHz
Operating Supply Voltage
3.3|5 V
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
- Current page: 292 of 309
- Download datasheet (6Mb)
29. Instruction Set Summary
7799D–AVR–11/10
Mnemonics
RCALL
BREQ
BRCC
BRGE
BRHC
ADIW
RJMP
ICALL
CPSE
SBRC
SBRS
BRBS
BRBC
BRNE
BRCS
BRSH
BRLO
BRPL
BRHS
BRTS
BRTC
BRVS
BRVC
SBIW
CALL
BRMI
BRLT
SUBI
SBCI
ANDI
COM
IJMP
RETI
SBIC
SBIS
BRIE
BRID
ADD
ADC
SUB
SBC
AND
EOR
NEG
SBR
CBR
DEC
CLR
SER
JMP
RET
CPC
TST
LSR
ORI
INC
CPI
SBI
CBI
LSL
OR
CP
Operands
Rd, Rr
Rd, Rr
Rd, Rr
Rd, Rr
Rd, Rr
Rd, Rr
Rd, Rr
Rdl,K
Rd, K
Rd, K
Rdl,K
Rd, K
Rd, K
Rd,Rr
Rd,Rr
Rd,Rr
Rd,K
Rd,K
Rd,K
Rr, b
Rr, b
P, b
P, b
s, k
s, k
P,b
P,b
Rd
Rd
Rd
Rd
Rd
Rd
Rd
Rd
Rd
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
k
ARITHMETIC AND LOGIC INSTRUCTIONS
BIT AND BIT-TEST INSTRUCTIONS
BRANCH INSTRUCTIONS
Subtract with Carry Constant from Reg.
Logical AND Register and Constant
Branch if Greater or Equal, Signed
Logical OR Register and Constant
Compare Register with Immediate
Branch if Overflow Flag is Cleared
Branch if Less Than Zero, Signed
Subtract with Carry two Registers
Branch if Half Carry Flag Cleared
Skip if Bit in I/O Register Cleared
Subtract Constant from Register
Subtract Immediate from Word
Skip if Bit in I/O Register is Set
Branch if Overflow Flag is Set
Add with Carry two Registers
Skip if Bit in Register Cleared
Branch if Status Flag Cleared
Branch if Half Carry Flag Set
Branch if Interrupt Disabled
Skip if Bit in Register is Set
Branch if Interrupt Enabled
Branch if Same or Higher
Branch if Status Flag Set
Relative Subroutine Call
Branch if T Flag Cleared
Add Immediate to Word
Exclusive OR Registers
Branch if Carry Cleared
Clear Bit in I/O Register
Compare, Skip if Equal
Subtract two Registers
Logical AND Registers
Clear Bit(s) in Register
Test for Zero or Minus
Direct Subroutine Call
Set Bit in I/O Register
Logical OR Registers
Set Bit(s) in Register
Compare with Carry
Branch if T Flag Set
One’s Complement
Two’s Complement
Indirect Jump to (Z)
Branch if Not Equal
Branch if Carry Set
Add two Registers
Indirect Call to (Z)
Subroutine Return
Logical Shift Right
Logical Shift Left
Interrupt Return
Branch if Lower
Branch if Equal
Branch if Minus
Description
Clear Register
Relative Jump
Branch if Plus
Set Register
Direct Jump
Decrement
Increment
Compare
if (SREG(s) = 1) then PC←PC+k + 1
if (SREG(s) = 0) then PC←PC+k + 1
if (N ⊕ V= 0) then PC ← PC + k + 1
if (N ⊕ V= 1) then PC ← PC + k + 1
if (C = 1) then PC ← PC + k + 1
if (C = 0) then PC ← PC + k + 1
if (C = 0) then PC ← PC + k + 1
if (N = 1) then PC ← PC + k + 1
if (H = 1) then PC ← PC + k + 1
if (T = 1) then PC ← PC + k + 1
if (Z = 1) then PC ← PC + k + 1
if (Z = 0) then PC ← PC + k + 1
if (C = 1) then PC ← PC + k + 1
if (N = 0) then PC ← PC + k + 1
if (H = 0) then PC ← PC + k + 1
if (T = 0) then PC ← PC + k + 1
if (V = 1) then PC ← PC + k + 1
if (V = 0) then PC ← PC + k + 1
if ( I = 1) then PC ← PC + k + 1
if ( I = 0) then PC ← PC + k + 1
if (Rd = Rr) PC ← PC + 2 or 3
if (Rr(b)=0) PC ← PC + 2 or 3
if (Rr(b)=1) PC ← PC + 2 or 3
Rd(n+1) ← Rd(n), Rd(0) ← 0
Rd(n) ← Rd(n+1), Rd(7) ← 0
if (P(b)=0) PC ← PC + 2 or 3
if (P(b)=1) PC ← PC + 2 or 3
ATmega8U2/16U2/32U2
Rdh:Rdl ← Rdh:Rdl + K
Rdh:Rdl ← Rdh:Rdl - K
Rd ← Rd • (0xFF - K)
Rd ← Rd + Rr + C
PC ← PC + k + 1
Rd ← Rd - Rr - C
Rd ← 0xFF − Rd
PC ← PC + k + 1
Rd ← 0x00 − Rd
Rd ← Rd - K - C
Rd ← Rd ⊕ Rd
Rd ← Rd ⊕ Rr
Rd ← Rd • Rd
Rd ← Rd + Rr
Rd ← Rd • Rr
Rd ← Rd v Rr
PC ← STACK
PC ← STACK
Rd ← Rd - Rr
Rd ← Rd • K
Rd ← Rd v K
Rd ← Rd v K
Rd ← Rd + 1
Rd ← Rd − 1
Rd ← Rd - K
I/O(P,b) ← 1
I/O(P,b) ← 0
Operation
Rd − Rr − C
Rd ← 0xFF
PC ← Z
PC ← Z
PC ← k
PC ← k
Rd − Rr
Rd − K
Z, N,V,C,H
Z, N,V,C,H
Z, N,V,C,H
Z,C,N,V,H
Z,C,N,V,H
Z,C,N,V,S
Z,C,N,V,H
Z,C,N,V,H
Z,C,N,V,H
Z,C,N,V,H
Z,C,N,V,S
Z,C,N,V,H
Z,C,N,V
Z,C,N,V
Z,C,N,V
Flags
Z,N,V
Z,N,V
Z,N,V
Z,N,V
Z,N,V
Z,N,V
Z,N,V
Z,N,V
Z,N,V
Z,N,V
Z,N,V
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
None
None
None
None
None
I
#Clocks
1/2/3
1/2/3
1/2/3
1/2/3
1/2/3
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1
1
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
3
4
4
5
5
5
1
1
1
2
2
1
1
292
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