View MEGA161_321972.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ATMEGA161
ATMEGA161 IOa
1. 2. AVR RISC 1/2a AVR OAU I|ARISC 1/2a 130 IoOAi oaEyIOAiOUAEU 32 o 8 IIOA x/ 1/4AaeAE/ x/OU8MHz E3/4O8MIPS AOAU OeA1/2oEOOAE*AE/ Ey3/4YI*COxEOIoAUae 16K xO1/2UAOUIEaI LASH AyIEy 1000 I F 1K xO1/2UaeAE/ 512 xO1/2UOUIEaI EEPROM EUAu 100000 I Io1/4OAUI 3/4OAA1/4OAUIA OOT uAeCo B IaI Peripheral IOa A1/2o3/4OE1/2IAE1/2AEO*OAEPrescale 8 IEAE/ /1/4AEEyAE/ OoEO*OAE 3/4OE1/2I x1/2IA1/2o8/9/10 I PWM |AUA16 IEAE/ /1/4AEEyAE/ E(R)U O//O SPI 1/2OU xO3/4OnAE/AEEEOO RTC EaIAAA*EAE/ OEAEAUOnAE/EuE AEAUAAaE1/2IAE/ 5. IOAMCU IOa EIcIIEaIAcO1/4ia I|AOI EcIocAE1/2 AUIaOIO 4MHz 3V 25 Io1/4IAA|A x/AE1/2 mA OIAE1/2 mA ocAE1/2 < A I/O I*ax 35 oEaIAI/O UI 40 1/2A PDIP 44 1/2A PLCC 1/4 QFP *ax x/cN 2.7V-5.5V ATMEGA161L 4.0V-5.5V ATMEGA161 EUE 0-4MHz ATMEGA161L 0-8MHz ATMEGA161
3.
4.
6.
7.
8.
9.
U1O1O
ATMEGA161
AeEo
ATMEGA161 ECOiuOU AVR RISC AI|A CMOS A 8 IAEu IyOUOoEOOOUAEUAU OOIoOAi ATMEGA161 EOOEA1/2O1/2u 1MIPS/MHz AOAU OoEAEe1/4AEEEOEOOOU| AIOEUEO(R)1/4aEAAE1/2a AVR E1/2 32 ox/1/4AaeAE/I*aAOAi1/4A1/2aOUOAE EuO Ax/1/4AaeAE/1/4Oe ALU EaAO O1/2OIaA OEiOUOoEOOOUAEUAUOAIoOAiI E*AIEA1/2oAAA1/4AaeAE/ OaOO1/2aIaAEuAeAE E AVR A1/2AEEAEOI CISC AEu 1/21/2u 10 AOAU I1/4 1 ATMEGA161 1/2a*1/2oI1/4
ATMEGA161 3/4OOOIAIOa 16K xO1/2UO U I a / xOaI FLASH 512 xO1/2U EEPROM I A 1K xO1/2UaeAE/ 35 oIOA I/0 U 32 oIOAx/1/4AaeAE/ EEEOO RTC 3 o3/4OE1/2IAE1/2 AAeiAEAE//1/4AEEyAE/ AUIaOIO A1/2oEaIA UART EaIAAA*EAE/ SPI UOO1/4EyOOEIyEi1/4NOnA1/2UcAE1/2 x/OUOIAE1/2E CPU 1/2IOOE o1/4AaeAE/ EAE//1/4AEEyAE/ AA*IOIII1/4Iox/ ocAE1/2EOnAE/IOx/ EuO|AU1/4 1/2uO o1/4AaeAE/AUEYA1/2Ao OOIaOIoO1/4IAEOOIEoExI EcAE1/2Oeo cAE1/2OOOai EcAE1/2IA T/C2 1/4Iox/OOIOE1/4aux1/4 AE/1/4ECOO ATMEL AAUE*COxEOAUae1/41/4EoEuuA AEAU FLASH EOOIy SPI 1/2OUoI OAaIAE/aIaI Iy1/2OoCA RISC 8 I CPU Oe FLASH 1/4EOUOo3/4AEAU ATMEGA161 IiaCEeE1/2OOAEO|OAIa(c)AEAeioIE3/4A*1/2 ATMEGA161 3/4OOOuIxAaIIII*3/4 eaa /EO/*AOaeAE/ OUI*AOaeAE/IAEAA a U1/2AAaOA
U1/2AOa VCC GND cO A U PA7...PA0 A UECOo 8 IEIo I/O U AOoU1/2A1/4OAUEIA-cxe A UAEaoaAE/AUIuEO 20mA AcA/ EO1/2OCy LED x/IEaEeE EcuIaA-I OEOUEIA-cxeAaeOU U1/2A1/2EaocA/ OUIyIO A UIEyI 1/4EEEEOOIAEOn OU*AIEIaaeAE/E A Ux/IOO*/Ey3/4YOAU B U PB7...PB0 BUECOo 8 IEIo I/O U AOoU1/2A1/4OAUEIA-cxe BUAEaoaAE/AUIuEO 20mA AcA/ EO1/2OCy LED x/IEaEeE EcuIaA-I OEOUEIA-cxeAaeOU U1/2A 1/2EaocA/ OUIyIO B UIEyI 1/4EEEEOOIAEOn B Ux/IIOEa|AUUAEOA*1/2*1/2*1/4uOOoOA1/2U C U PC7...PC0 C UECOo 8 IEIo I/O U AOoU1/2A1/4OAUEIA-cxe C UAEaoaAE/AUIuEO 20mA AcA/ x/IEaEeE EcuIaA-I OEOUEIA-cxeAaeOU U1/2A1/2EaocA/ OUI yIO C UIEyI 1/4EEEEOOIAEOn OU*AIEIaaeAE/E C Ux/I 8 IOO*I
U2O2O
ATMEGA161
D U PD7...PD0 D UECOooAUEIA-cxeA 8 IEIo I/O U EaoaAE/AUIuEO 20mA AcA/ x/I EaEeE EcuIaA-I OEOUEIA-cxeAaeOU U1/2A1/2EaocA/ OUIyIO D UI EyI 1/4EEEEOOIAEOn D Ux/IIOEa|AUUAEOA*1/2*1/2*1/4uOOoOA1/2U E U PE2...PE0 E UECOooAUEIA-cxeA 3 IEIo I/O U EaoaAE/AUIuEO 20mA AcA/ x/I EaEeE EcuIaA-I OEOUEIA-cxeAaeOU U1/2A1/2EaocA/ OUIyIO D UI EyI 1/4EEEEOOIAEOn D Ux/IIOEa|AUUAEOA*1/2*1/2*1/4uOOoOA1/2U /RESET IEaEe y 500ns AIcAE1/21/2uEuIAA 500ns AAoaAUOEI XTAL1 OnAE/*AoAE/AEaEeE XTAL2 OnAE/*AoAE/AEaoE 3/4IaOnAE/ XTAL1 I XTAL2 *OECAEAUOnAE/AEaEe EaoE EEOA3/4IaOnAE/oECIOEOnAE/ EOAIaEOOE XTAL2 O|uO I1/4 2 OnAE/A1/2O I1/4 3 IaEOOCyAaOA 1/4EEEEOOIAEOn IOU
EAE/OnAE/ 3/4OnEOOO1/2OA1/2O1/2OnAE/AOy1/2A TOSC1 I TOSC2 oIeIacEY OnAE/ON3/4-O 32768Hz A3/4Onx/AEOA OIa1/4OAAAoiI 256KHz 1/2axYAA
I1/44
ATMEGA161 AVR RISC 1/2a
iEU*AIE1/4AaeAE/IA1/4u 32 o 8 IEOUAEU*AIEAIOA1/4AaeAE/ OaOaIxAOUOoEOOOUAEU AU ALU EOOIeEOIEcIAUx/ AE1/4AaeAE/IA1/4OAA1/2oUx/Ey OUx/ 1/21/2auae O1/21/4AaeAE/IA1/4 1/4AaeAE/IA1/4OA 6 oEOOxeE 3 o 16 IOAOUEy3/4YNO*A1/4a1/2ONO*1/4AaeAE/OOe OOIaOO* OEEaAUA| Oa(c)Oo1/4OA|AU1/4AaeAE/I X Y I Z 1/4AaeAE/ ALU OOA1/2o1/4AaeAE/O(R)1/4a 1/4AaeAE/IEyO(R)1/4aAEaEoIA1/4-Ux/ OO1/41/4AaeAE/AUx/ yAE1/4AaeAE/Ux/AE1/2 IAAUae*AIEAE1/2OEEOAOU1/4AaeAE/IA1/4 OaECOoI AT90S4434/8535 I1/4AaeAE/IA1/4*OAaAE 32 oxiIAEy3/4YO1/4aOO* $00 - $1F OEiAEaIoAEOIAUaeOO*ONu*A IE I/O AUaeO1/4auA 64 oOO*x/I CPU IaEeAOOAE1/4AaeAE/ T/C OO1/4AEaEu I/O |AU I/O AU aeEOOO1/2O*AIE OEOOx/IEy3/4YOO* $20 - $5F A*AIE AVR EOAAE HARVARD 1/2a IoIEy3/4YxUI*OAe IoAUaeIyA1/2IE1/2AUA Pipeline 1/2o*AIE CPU OUOOIoOAiAIE 3/4IEEIAOIoOAi OaOOOEOAAAiEAO AiEOOOUOoEOOIeE IoaeAE/IExOaIA FLASH aeAE/
U3O3O
ATMEGA161
16K OO*O1/4a aEy AVR OAi1/4I 16 I Ao IoAUaeOO*1/4uOIo 16 Io 32 IAOAi OOIIxOIo/OAE *OOO*aeOUNOO NO*O1/4OUIOAEy3/4YaeAE/O(R)O N OoOEUaeAE/EyAAIOAE OAO|AOUIAyIAi3/4IoE1/4 SP SP IEAA 16 I NOOOe 1K xO1/2UAaeAE/EOOIy 5 OOIANO**1/2E1/2UEYOxO1/2o*AIE OIAeOE I/O O1/4aOAOOAE1/4AaeAE/IxI1/4AaeAE/OAE3/4OOIEAUIxeE AoOI1/43/4 OOoOIIoA OEOIIoAxeEAOIIoAiIOUIoaeCoAxiCAae OIIoAOO*I AOI3/4OAOAIE1/4 AVR 1/2aAAUaeO1/4aECIOA
IaOIoxIIaO/OAOAiEOOO1/2O*AIE
I1/4 5
aeAE/AaOA
IOAx/1/4AaeAE/IA1/4
I1/46
7 R0 R1 R2 ... R13 R14 R15 R16 R17 ... R26 R27 R28 R29 R30 R31
IOAx/1/4AaeAE/ 0 OO* $00 $01 $02 $0D $0E $0F $10 $11 $1A $1B $1C $1D $1E $1F X 1/4AaeAE/IxO1/2U X 1/4AaeAE/xO1/2U Y 1/4AaeAE/IxO1/2U Y 1/4AaeAE/xO1/2U Z 1/4AaeAE/IxO1/2U Z 1/4AaeAE/xO1/2U
I OA x/ 1/4A ae AE/
EuOA1/4AaeAE/Ux/OAi1/4EOOOAiAIE1/2O1/2O*AIEEuOA1/4AaeAE/ AyIaCeoI 5 IoEae1/4 EyUx/AOAi SBCI SUBI CPI ANDI I ORI Oa(c)OAiOAU*AIEIOA1/4AaeAE/IA1/4Ao e*O R16 1/2 R31 EcI1/4 5 EuE3/4 Ao1/4AaeAE/1/4OOoEy3/4YAUaeOO* 1/2EuACO1/2OOEa1/2OAEy3/4YO1/4aAI* 32 oOO* EaE1/4AaeAE/IA1/4AEIOOeaeAE/I OaOOAUaexeO*1/2E1/2OU*AIE1/4AaeAE/*1/2Aae3/4O1/4 oAAeiO X Y Z 1/4AaeAE/ 1/4AaeAE/ R26~R31 yAEOAx/IOA1/4AaeAE/Ia EOOx/IEy3/4Y1/4a1/2ONO*OAAOO*OOe I1/4 7 X Y Z 1/4AaeAE/ 15 7 07 X 1/4AaeAE/ R27 $1B R26 $1A
U4O4O
0 0
ATMEGA161
Y 1/4AaeAE/
15 7 R29 $1D 15 7 R31 $1F
07 R28 $1C
0 0
Z 1/4AaeAE/
07 R30 $1E
0 0
ALU
AVR ALU Oe 32 oIOAx/1/4AaeAE/O1/2OIaA ALU Ux/*OI 3 Aa A TMEGA161 OOO1/4E*|AU O/I*uAE*1/4*OEynE1/2E* xOaI EaEo A1/4-IIUx/
FLASH
o 32 I
ATMEGA161 3/4O 16K xO1/2UExOaI/OUIaIA FLASH OoIEuOAOAiI 16 i Eu FLASH 1/2aI 8K 16 FLASH AAyIEyOAEUI 1000 I
EEPROM
ATMEGA161 u 512 xO1/2UA EEPROM EuECx/IOoAAAEy3/4YO1/4aoaeOUA EOOxO 1/2UA EEPROM AEUAuOAEUI 100000 I Ay EEPROM A*AIEOEOO*1/4AaeAE/ Ey3/4Y 1/4AaeAE/IOOAE1/4AaeAE/3/4o aeAE/
I1/48
aeAE/AaOA
C 1120 oEy3/4YOO*OAOUNO*1/4AaeAE/IA1/4 I/O IAUEy3/4YaeAE/ AEE1/4A 96 oOO*I1/4Aae AE/IA1/4+I/O AEaoA 1K oOO*OAOUNO*aeAE/ *AIEAUEy3/4YO1/4aE/RD I/WR AAI EoO*AIEIaaeAE/ OeOAI MCUCR A SRE I *AIEIaaeAE/E*AIEAUAOaOoEOOOUAEU OaOaIxAOAi LD ST LDS STS PUSH I POP OAi1/2aOoEOOOUAEU EcuNO*AOAOUIaaeAE/ OoOIIEy/OA1/2*Ni IaAA1/2oEOO EcuIaaeAE/1/2OUEOAAEEyxI OoaA1/2oEOOOUAEU Ey3/4YNO*AE1/2*OI 5 OO O1/2O oAEOAEAA1/4a1/2O 1/4a1/2O O1/4oA1/4a1/2O o1/4OA1/4a1/2O 1/4AaeAE/ R26 1/2 R31 I1/4a1/2ONO*AOOe1/4AaeAE/ oAEOAEAA1/4a1/2ONO*AE1/2NO*1/2 Y Z OOeoOO*1/21/2uA 63 oOO* oO1/4oIo1/4OA1/4a1/2ONO*AE1/2OOA1/2 X Y Z OOe 32 oIOA1/4AaeAE/ 64 o I/O 1/4AaeAE/ 1K xO1/2UAaeAE/EOOEuOANO*AE1/2*AIE IoIEy3/4YNO*AE1/2 ATMEGA161 OOCooOANO*AE1/2 3/41/2U1/2O1/2eEU/OONO*AE1/2 1/4AaeAE/O1/2ONO* I1/4 9 E1/4AaeAE/O1/2ONO* I1/4 10
U5O5O
ATMEGA161
I/O O1/2ONO* I1/4 11 Ey3/4YO1/2ONO* I1/4 12 oAEOAEAEy3/4Y1/4a1/2ONO* I1/4 13 Ey3/4Y1/4a1/2ONO* I1/4 14 oO1/4oAEy3/4Y1/4a1/2ONO* I1/4 15 oo1/4OAEy3/4Y1/4a1/2ONO* I1/4 16 EOA LPM AOAiNO*Ey I1/4 17 1/4a1/2OIoNO* IJMP I ICALL I1/4 18 IaOIoNO* RJMP I RCALL I1/4 19 O1/2OIoNO* JMP I CALL I1/4 20
AUae*AIEIOAiOEo
OaO1/2U1/2eEUOAiOIAUae*AIEEo
AVR CPU OEIIEOO Cy EEOOOEIa3/4IaO1/2OuEu I1/4 21 EA/AEOE HARVARD 1/2a3/4oAEAEOIO OO1/4iEU*AIE1/4AaeAE/IA1/4AAAi OaECOou3/4A i1/2 1MIPS/MHz 3/4OOAA1/4AO1/4UE |AU/EOOE |AU/|AEAA/E(R) IAAi I1/4 21 EOOeOAiO
I1/4 22 NYE3/4AEC1/4AaeAE/IA1/4AUEo OUOoEOOOUAEUAi ALU EOOIEOA1/2o1/4AaeAE/Ux/ Ey1/2oUx/ IE1/21/2auaeO1/2AEaOAOo1/4AaeAE/OE I1/4 22 EOO ALU Ux/
I1/4 23 AEAUaeAE/*AIEOUAEU
I/O AUae i1
ATMEGA161 A I/O O1/4a
U6O6O
ATMEGA161
OO*
16 1/2oOAE $3F($5F) $3E($5E) $3D($5D) $3B($5B) $3A($5A) $39($59) $38($58) $37($57) $36($56) $35($55) $34($54) $33($53) $32($52) $31($51) $30($50) $2F($4F) $2E($4E) $2D($4D) $2C($4C) $2B($4B) $2A($4A) $29($49) $28($48) $27($47) $26($46) $25($45) $24($44) $23($43) $21($41) $20($40) $1F($3F) $1E($3E) $1D($3D) $1C($3C) $1B($3B) $1A($3A) $19($39) $18($38) $17($37) $16($36) $15($35) $14($34) $13($33) $12($32) $11($31) $10($30) $0F($2F)
AuAE SREG SPH SPL GIMSK GIFR TIMSK TIFR SPMCR EMCUCR MCUCR MCUSR TCCR0 TCNT0 OCR0 ASSR TCCR1A TCCR1B TCNT1H TCNT1L OCR1AH OCR1AL OCR1BH OCR1BL TCCR2 ICR1H ICR1L TCNT2 OCR2 WDTCR UBRRHI EEARH EEARL EEDR EECR PORTA DDRA PINA PORTB DDRB PINB PORTC DDRC PINC PORTD DDRD PIND SPDR
|AU xI1/4AaeAE/ NOOOexO1/2U NOOOeIxO1/2U IOAOIAEAI1/4AaeAE/ IOAOIOOAE1/4AaeAE/ T/C OIAEAI1/4AaeAE/ T/C OIeO3/41/4AaeAE/ aeIoaeAE/OOAE1/4AaeAE/ A(c)OA MCU IOAOOAE1/4AaeAE/ MCU IOAOOAE1/4AaeAE/ MCU IOAxI1/4AaeAE/ T/C0 OOAE1/4AaeAE/ T/C0 8 I T/C0 EaoE1/2I1/4AaeAE/ Oi1/2AE1/2xI1/4AaeAE/ T/C1 OOAE1/4AaeAE/ A T/C1 OOAE1/4AaeAE/ B T/C1 xO1/2U T/C1 IxO1/2U T/C1 EaoE1/2I1/4AaeAE/ A xO1/2U T/C1 EaoE1/2I1/4AaeAE/ A IxO1/2U T/C1 EaoE1/2I1/4AaeAE/ B xO1/2U T/C1 EaoE1/2I1/4AaeAE/ B IxO1/2U T/C2 OOAE1/4AaeAE/ T/C1 EaEex1/21/4AaeAE/xO1/2U T/C1 EaEex1/21/4AaeAE/IxO1/2U T/C2 8 I T/C2 EaoE1/2I1/4AaeAE/ AA*OOAE1/4AaeAE/ UART IOAE1/4AaeAE/xO1/2U EEPROM OO*1/4AaeAE/ EEPROM IOO*1/4AaeAE/ EEPROM Ey3/4Y1/4AaeAE/ EEPROM OOAE1/4AaeAE/ A UEy3/4Y1/4AaeAE/ A UEy3/4Y*1/2Io1/4AaeAE/ A UEaEeOy1/2A B UEy3/4Y1/4AaeAE/ B UEy3/4Y*1/2Io1/4AaeAE/ B UEaEeOy1/2A C UEy3/4Y1/4AaeAE/ C UEy3/4Y*1/2Io1/4AaeAE/ C UEaEeOy1/2A D UEy3/4Y1/4AaeAE/ D UEy3/4Y*1/2Io1/4AaeAE/ D UEaEeOy1/2A SPI Ey3/4Y1/4AaeAE/
U7O7O
ATMEGA161
$0E($2E) $0D($2D) $0C($2C) $0B($2B) $0A($2A) $09($29) $08($28) $07($27) $06($26) $05($25) $03($23) $02($22) $01($21) $00($20)
SPSR SPCR UDR0 UCSR0A UCSR0B UBRR0 ACSR PORTE DDRE PINE UDR1 UCSR1A UCSR1B UBRR1
SPI xI1/4AaeAE/ SPI OOAE1/4AaeAE/ UART0 Ey3/4Y1/4AaeAE/ UART0 OOAE/xI1/4AaeAE/ A UART0 OOAE/xI1/4AaeAE/ B UART0 IOAE1/4AaeAE/ AAaE1/2IAE/OOAE1/4xI1/4AaeAE/ E UEy3/4Y1/4AaeAE/ E UEy3/4Y*1/2Io1/4AaeAE/ E UEaEeOy1/2A UART1 Ey3/4Y1/4AaeAE/ UART1 OOAE/xI1/4AaeAE/ A UART1 OOAE/xI1/4AaeAE/ B UART1 IOAE1/4AaeAE/
AVRATMEGA161 AEuOI/O IIaI1/4*AOAOU I/O O1/4a IN I OUT OAiOAA*AIEIA I/O OO* OO1/4OU 32 oIOA1/4AaeAE/O(R)1/4aEaEy3/4Y OO*I$00-$1F A I/O 1/4AaeAE/EOA SBI I CBI OAi1/2oINO* o SIBC I SIBS OoOAA1/4ieoIOAIOe*n EOA IN I OUT O AiEOO*OeOU$00-$3F O(R)1/4a EcuOIoaeAE/ONu*AIE I/O 1/4AaeAE/ OoIaO|OO*O1/4OEI$20 OU3/4IAAiEuO I/O 1/4AaeAE/AaeAE/OO*OUAAO IAEOeoouAE*1/4aeEY AoIOAAIO| 0 oAoA I/O 1/4AaeAE/OoO|*AIE O(c)xIeO3/4IACayECIy 1 AEIOA CBI I SBI OAiAEONOAIAeO3/4IE aO 1 OoEaCayOa(c)eO3/4I CBI I SBI OAiOO$00-$1F O I/O 1/4AaeAE/IIaIOOAE1/4AaeAE/OUooOA1/2U1/2eEU xI1/4AaeAE/SREG Status Register BIT 7 6 5 4 3 2 1 0 I T H S V N Z C $3F $5F R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O I E3/4OOIEAU OAIEEAUE3/4OOI AAOIEAUOEoAAOOAE1/4AaeAE/OOAE Ecu I CaAa OoAUA OIeO3/4OAIOe*n 1/4auEuOI I OUIECaAa RETI OAiOoOAI T I1/2ae I1/2OAi BLD I BST AuOA T x/IAAoOOO* BST N1/4AaeAE/AAOI1/21/2 T o BLD N T 1/21/21/4AaeAE/AAOI H e1/4OeO3/4I S *uAI xUEC N Oe V AOio V 1/2oOAEAeOc oeO3/4I N EyeO3/4I Z AaeO3/4I C 1/2oIeO3/4I xI1/4AaeAE/OU1/2oEeOIIIEoOIExO1/2oaeIO NOOOeSP
U8O8O
OaIix/OEEi1/4IeE
ATMEGA161
15 14 13 12 11 10 9 8 SP15 SP14 SP13 SP12 SP11 SP10 SP9 SP8 SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0 7 6 5 4 3 2 1 0 R/W R/W R/W R/W R/W R/W R/W R/W A/ R/W R/W R/W R/W R/W R/W R/W R/W 0 0 0 0 0 0 0 0 oE1/4O 0 0 0 0 0 0 0 0 NOOOeOIoIOUaeAE/AEy1/4OINO NOO1/4aOeOU/OAEyoOIEAUO(R)C Oa OOeOeOIoOU$60 AOO* OA PUSH OAiIAEEy3/4YEeOE NOOOe1/21/4oO o/ OAEyoOIE OOe1/21/4o EOA POP OAiE NOOOe1/21/4OO oOA RET o RETI * OE OOe1/21/4O IIOI|Ai ATMEGA161 O 20 oOIO AoOIOOUIoO1/4a1/4OOoAAAOIIoA EuOAOI EA1/41/4OxO1/4AEAUI EAUIOAI CO I OOAIACeoIA OIEOO*Eu AE/1/4Io IoO1/4aAxiIIOAxOOaII1/4OIIoA IeOuAOIi1/4ui 2 OUO IIoAiO|OUIOO*AOI3/4OAOAIE1/4 EuOO RESET 3/4OxiAOAIE1/4 i 2 IOeOIIoA IoAA IoOO* AO Oa 1 $000 RESET O1/4U1/2A EIcIIAA*I 2 $002 INT0 IaOI 0 3 $004 INT1 IaOI 1 4 $006 INT2 IaOI 2 5 $008 TIMER2 COMP T/C2 E1/2IAEAa 6 $00A TIMER2 OVF T/C2 Oco 7 $00C TIMER1 CAPT T/C1 x1/2EA1/4 8 $01E TIMER1 COMPA T/C1 E1/2IAEAa A 9 $010 TIMER1 COMPB T/C1 E1/2IAEAa B 10 $012 TIMER1 OVF T/C1 Oco 11 $014 TIMER0 COMP T/C0 E1/2IAEAa 12 $016 TIMER0 OVF T/C0 Oco 13 $018 SPI STC (R)Ea1/2aEo 14 $01A UART0 RX UART0 1/2OEO1/2aEo 15 $01C UART1 RX UART1 1/2OEO1/2aEo 16 $01E UART0 UDRE UART0 Ey3/4Y1/4AaeAE/O 17 $020 UART1 UDRE UART1 Ey3/4Y1/4AaeAE/O 18 $022 UART0 TX UART0 *EI1/2aEo 19 $024 UART1 TX UART1 *EI1/2aEo 20 $026 EE READY EEPROM x1/4A 21 $028 ANA_COMP AAaE1/2IAE/ EeOAOIIoAOO*xiaIA*1/2*EcIA OO* eA uAe xEI $000 RJMP RESET I $002 RJMP EXT_INT0 IRQ0 $004 RJMP EXT_INT1 IRQ1 $006 RJMP EXT_INT2 IRQ2
U9O9O
BIT $3E($5E) $3D($5D)
ATMEGA161
$008 $00a $00c $00e $010 $012 $014 $016 $018 $01a $01c $01e $020 $022 $024 $026 $028 $02a $02b $02c $02d $02e MAIN
RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP RJMP LDI OUT LDI RJMP
TIM2_COMP TIM2_OVF TIM1_CAPT TIM1_COMPA TIM1_COMPB TIM1_OVF TIM0_COMP TIM0_OVF SPI_STC UART_RXC0 UART_RXC1 UART_DRE0 UART_DRE1 UART_TXC0 UART_TXC1 EE_RDY ANA_COMP R16 HIGH(REMEND) SPH, R16 R16 LOW(REMEND) XXX
T2 E1/2IAEAa T2 Oco T1 x1/2 T1 E1/2I A AEAa T1 E1/2I B AEAa T1 Oco T0 E1/2IAEAa T0 Oco SPI Ea1/2aEo UART0 1/2OEO1/2aEo UART1 1/2OEO1/2aEo UART0 Ey3/4YO UART1 Ey3/4YO UART0 *EI1/2aEo UART1 *EI1/2aEo EEP x1/4A AAaE1/2IAE/ O/IoE1/4
IO ATMEGA161 O 4 oIO l EIcI cOcNIOUEIcAAI VPOT E MCU I l IaI /RESET Oy1/2AEIAIcAE1/2y 500ns E MCU I l AA*I AA*EAE/Eo MCU I l cN1/4iaI cOcN1/2I1/2AoIO OE OUIAEU1/4a EuOA I/O 1/4AaeAE/EeOAIoE1/4O IoOOO*$000 E1/4O $000 OO*O *AOAAOAiOeI JMP 3/4oOIoxOAi Iox1/2I|AiAyI EoIoOAOeOI Oo OIIoA3/4IE*AOAIAIouAe I1/4 24 IIcA*AA1/4-I1/4 i 3/4 OaAEIcA*A EoIcIEy I1/4 24 i 3 *uA IEy EIcIcNAAI VPOT EIcIcNAAI VRST IA1/2 IA1/4-
IcIEy VCC = 5.0V Io1/4 xiO aIO No BOD 1.0 1.4 EIEy BOD 1.7 2.2 No BOD BOD 0.4 1.7 0.6 2.2 -
xioO 1.8 2.7 0.8 2.7 .85VCC
I V V V V V
IOy1/2AAAIcN
U10O10O
ATMEGA161
VBOT
cAE1/21/4iaIAAI
BODLEV EL=1 BODLEV EL=0
i 4
2.6 3.8
2.7 4.0
2.8 4.2 V
x y*CcOcNIOU VPOT
*nOoEIcIa*Eu
CKSEL[2:0] 000 001 010 011 100 101 110 111
2 3
AEE1/4atTOUT VCC = 2.7V 4.2ms + 6 CK 30 s + 6 CK 67ms + 16K CK 4.2ms + 16K CK 30 s + 16K CK 67ms + 1K CK 4.2ms + 1K CK 30 s + 1K CK
INOENOn AEE1/4atTOUT VCC = 4.0V 5.8ms + 6 CK 10 s + 6 CK 92ms + 16K CK 5.8ms + 16K CK 10 s + 16K CK 92ms + 1K CK 5.8ms + 1K CK 10 s + 1K CK
IAE1/4oOA* 1 IaEOO cOiEUEIEy IaEOO BOD EAU 2 3 3/4On 3/4On cOAyEUEIEy 3/4On BOD EAU 2 3 IOE/IaEOO cOAyEUEIEy IOEOnAE/ cOiEUEIEy IOEOnAE/ BOD EAU 2 3
xOa 1 CKSEL OOOAEAEoE1/4a EIcE EEEOOAAEoE1/4aaIOI 0.6ms
oIaEIcI EEEOOOoI 50
s i 4 IOE3/4AEIoAAEoE1/4a OYA1/2NEOoO1/4AEEaEOO1/4AEEA*O AA*Oco1/4ui 5 i 5 AA*OnAE/OUAEUEy BODLEVEL OcoE1/4a EOOEy 1K IaI 4.2ms VCC = 2.7V 16K IaI 67ms VCC = 2.7V 4K ONaI 5.8ms VCC = 4.0V 64K ONaI 92ms VCC = 4.0V xOa 1/4E1/2uOcAE1/21/4ia BODEN aI BODLEVEL OEOAOUNOnAEoE1/4a AA*AOnAEAEOecNOO 3/4AEoE CKSEL = 010 EIcI
EIcI POR AoaOAEAU1/4iacA*uEu eAE1/4iacAE1/2I 1.4V VCC IOUEcNE
IyI3/4Ia1/4i
EIcIOAE/1/4OUEIcEOyE*I IacNi1/2IAAIo1/4*OoNOE1/4AEEyAE/ EE AE/O MCUOOOU VCC i1/2 VPOT COyAEOE1/4aO(R)oAAEo NOEE1/4aEOE CKSEL E* 1/4ui 4 I1/4 25 MCU AE /RESET Oe VCC IaA
I1/4 26
MCU AEo
/RESET OEIacA*OOAE
IaI
IaIOEIa1/4OOU /RESET Oy1/2AAIcAE1/2uEu oOU 500ns AIAoa1/2OiE3/4AEI E(c)
1/4OIAoaAUOEI Ia1/4OAAi1/2IAAIcN VRST OUAEUE1/4 Eo MCU AEo I1/4 27 x/AEU1/4aAIaI
U11O11O
EIEyNO E
tTOUT NOE
ATMEGA161
Brown-Out 1/4ia
MEGA161 3/4OAEAU BOD 1/4iacA*OAOO1/4aa VC C E O A BOD | A U E O O 74nF 1/2 100nF c E Y A O VCC 1/2 o 1/2 a n i BOD EOEEUEI BODEN OOAE Ecu BODEN EAU aI OoOO VCC IOU*cAE1/2 BOD 3/4IA1/4x/ EcNOEy1/2*cAE1/2o AE/1/4EyOIE1/4a E o BOD I NOUE1/4aOe POR AIaI 1/4ui 4 BOD *cAE1/2OE BODLEVEL OOAEI 2.7V BODLEVEL IaI o 4.0V BODLEVEL ONaI *cAE1/2O 50mV AEOa *cAE1/2I 4.0V E OO VC C IOUOaoO 9 s BOD 3/4IAEx/OA o*cAE1/2I 2.7V E E1/4aNO1/2 21 s I1/4 28 x/AEU1/4aA BOD I
AA*I
AA*EAE/OcoE 1/2uEu1 o XTAL AIAoa OUAoaAIA1/2NO NOEEAE/
E1/4O tTOUT 1/4CEy I1/4 29 x/AEU1/4aAAA*I
MCU xI1/4AaeAE/ MCUSR BIT 7 6 5 4 $34($54) R R R R A/ 0 0 0 0 oE1/4O I 7...4 Ao WDRF AA*IeO3/4 AA*IEOaOIOAI EIcIoOAEa 0 BORF BOD IeO3/4 BOD IEOaOIOAI EIcIoOAEa 0 0
3 WDRF R/W
2 BORF R/W
1 EXTRF R/W
0 PORF R/W
1/2EAEaCaAa 1/2EAEaCaAa
EXTRF IaIeO3/4 IaIEOAI EIcIoOAEa
1/2EAEaCaAa
PORF EIcIeO3/4 OEEIcIOAI OAEa 0 1/2EAEaCaAa EcuOAuOAOa(c)OIeO3/4AEIIo1/4 OAEi1/4O3/4OcOAEaIeEAICaAa EcuOUIAO oI*EuCIeECaAax/ OoIy1/4ieIIeO3/43/4IEOOOOoIO
U12O12O
ATMEGA161
OI|Ai
ATMEGA161 O 2 o 8 IOIAEAIOOAE1/4AaeAE/ GIMSK IOAOIAEAI1/4AaeAE/I TIMSK T/C OIAEAI1/4AaeAE/ OoOIuEuo E3/4OOIEAUI I 1/2CaAa ooOIAEAI OAEOOOUOIAyIAiO I OAI Oo*AOI O RETI o I OOAOAI Io1/4AEEyAE/OIoE1/4EOIIoAE1/4OIaO|AOIAyIE O1/4CayOO|AOIeO3/4 O (c)OIeO3/4IOEOOIyEi1/4 1 ACay Oo*uIIo1/4AOI*Euo EcuIaO|AOIEAUII 0 OoOIeO3/4IOAE OO O1/2OIO oOEi1/4Cay EcuE3/4OOIeO3/4CaAa OoEuOAOI1/4aO O1/2 I OAI EoOAEA/oO IOIOAIE1/4OAIOI xOa IacAE1/2OIAOOIeO3/4I OoEcAE1/2aI*COIcAE1/2o OIIo1/41/4OOO OI*EuoxI1/4AaeAE/AaeOEEi1/4IeE IOAOIAEAI1/4AaeAE/ GIMSK BIT 7 6 5 4 3 2 1 0 $3B($5B) INT1 INT0 INT2 R/W R/W R/W R R R R R A/ 0 0 0 0 0 0 0 0 oE1/4O I 4...0 Ao AoOI 0 INT1 IaOI1 CeCoEAU INT0 I I 1/4I 1 E IaOy1/2AOIEAU MCU IOAOOAE1/4AaeAE/ MCUCR OAO I1/4iaOOAEI 1/0 ISC11 I ISC10 OaOI 1 ECEIEyNOOIECIA1/2NOOI oOECI cAE1/2OI 1/4EU1/2AOaIEao OIEOEuEu INT0 IaOI0 CeCoEAU INT0 I I 1/4I 1 E IaOy1/2AOIEAU MCU IOAOOAE1/4AaeAE/ MCUCR OAO I1/4iaOOAEI 1/0 ISC01 I ISC00 OaOI 0 ECEIEyNOOIECIA1/2NOOI oOECI cAE1/2OI 1/4EU1/2AOaIEao OIEOEuEu INT2 IaOI2 CeCoEAU INT2 I I 1/4I 1 E IaOy1/2AOIEAU MCU IOAOOAE1/4AaeAE/ MCUCR OAO I1/4iaOOAEI ISC02 OaOI 2 ECEIEyNOOIECIA1/2NOOI 1/4EU1/2AOaIEao OIEOEuEu IOAOIeO3/41/4AaeAE/ GIFR BIT 7 6 $3A($5A) INTF1 INTF0 R/W R/W A/ 0 0 oE1/4O I 4...0 Ao AoOI 0
5 INTF2 R/W 0
4 R 0
3 R 0
2 R 0
1 R 0
0 R 0
INTF1 IaOIeO3/4 1 INT1 U1/2AOEA1/4*OICeCoE INTF1 OAI 1 Ecu SREG OA I 1/4 GIMSK O A INT1 1/4I 1 Oo MCU 1/2Iox1/2OIOO*$004 OIAyIOo EeO3/4Cay Ai Ia eO3/4OEOOIyOAEa 1 ACay INTF0 IaOIeO3/4 0 INT0 U1/2AOEA1/4*OICeCoE INTF0 OAI
U13O13O
1
Ecu SREG OA I 1/4 GIMSK O
ATMEGA161
A INT0 1/4I
Ia
1 Oo MCU 1/2Iox1/2OIOO*$002 eO3/4OEOOIyOAEa 1 ACay
OIAyIOo
EeO3/4Cay
Ai
INTF2 IaOIeO3/4 2 INT2 U1/2AOEA1/4*OICeCoE INTF2 OAI 1 Ecu SREG OA I 1/4 GIMSK O A INT2 1/4I 1 Oo MCU 1/2Iox1/2OIOO*$006 OIAyIOo EeO3/4Cay Ai Ia eO3/4OEOOIyOAEa 1 ACay T/C OIAEAI1/4AaeAE/ TIMSK BIT 7 6 $39($59) TOIE1 OCIE1A
5 OCIE1B
4 TOIE2
3 TICIE1
2 TICIE2
R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 oE1/4O TOIE1 T/C1 OcoOIEAU TOIE1 I I 1/4I 1 E T/C1 OcoOIEAU T/C1 Oco o TIFR OA TOV1 IOA IE OIAyI $0012 A1/2O OCIE1A T/C1 EaoE1/2IA AEAaOIEAU TOIE1A I I 1/4I 1 E EaoE1/2I A AEAaOIEAU T/C1 AE1/2I A AEAa*Eu o TIFR OA OCF1A OAI OIAyI $00E 1/2O OCIE1B T/C1 EaoE1/2IB AEAaOIEAU TOIE1B I I 1/4I 1 E EaoE1/2I B AEAaOIEAU T/C1 AE1/2I B AEAa*Eu TIFR OA OCF1B OAI OIAyI $010 1/2O TOIE2 T/C2 OcoOIEAU TOIE2 I I 1/4I 1 E T/C2 OcoOIEAU IE OIAyI $00A A1/2O T/C2 Oco o
1 TOI E0 R/W 0
0 OCI E0 R/W 0
o TIFR OA TOV2 IOA
TICIE1 T/C1 EaEex1/2OIEAU TICIE1 I I 1/4I 1 E EaEex1/2OIEAU T/C1 AEaEex1/2EA1/4*Eu TIFR OA ICF1 OAI OIAyI $00C 1/2O
ICP
o
OCIE2 T/C2 EaoE1/2IAEAaOIEAU TOIE2 I I 1/4I 1 E EaoE1/2IAEAaOIEAU T/C2 AE1/2IAEAa*Eu o TIFR O A OCF2 OAI OIAyI $008 1/2O TOIE0 T/C0 OcoOIEAU TOIE0 I I 1/4I 1 E T/C0 OcoOIEAU T/C0 Oco o TIFR OA TOV0 IOA IE OIAyI $016 A1/2O OCIE0 T/C0 EaoE1/2IAEAaOIEAU TOIE0 I I 1/4I 1 E EaoE1/2IAEAaOIEAU T/C0 AE1/2IAEAa*Eu o TIFR O A OCF0 OAI OIAyI $014 1/2O T/C OIeO3/41/4AaeAE/ TIFR BIT 7 6 5 4 3 2 1 0 $38($58) TOV1 OCF1A OCF1B TOV2 ICF1 OCF2 TOV0 OCF0 R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O TOV1 T/C1 OcoOIeO3/4I T/C1 OcoE TOV1 OAI OIaO|AOIAyIoEIO1/4CaAa EIa TOV1 OEOO Iy 1 ACaAa SREG OAI I TOIE1 I TOV1 OIOAIE OIAyIA1/2O
U14O14O
ATMEGA161
OU PWM AE1/2O
T/C1 OU$0000 Aa1/4CEy*1/2IoE
TOV1 OAI
OCF1A EaoE1/2IeO3/4 1A T/C1 Oe OCR1A AOAEAaE OCF1A OAI EIOUOIAyIAiO1/4CaAa oOIyOAEa 1 ACaAa SREG OAI I OCIE1A I OCF1A OIOAIE OIAyIA1/2O OCF1B EaoE1/2IeO3/4 1B T/C1 Oe OCR1B AOAEAaE OCF1B OAI EIOUOIAyIAiO1/4CaAa oOIyOAEa 1 ACaAa SREG OAI I OCIE1B I OCF1B OIOAIE OIAyIA1/2O TOV2 T/C2 OcoOIeO3/4I T/C2 OcoE TOV2 OAI OIaO|AOIAyIoEIO1/4CaAa EIa TOV2 OEOO Iy 1 ACaAa SREG OAI I TOIE2 I TOV2 OIOAIE OIAyIA1/2O OU PWM AE1/2O T/C2 OU$0000 Aa1/4CEy*1/2IoE TOV2 OAI ICF1 EaEex1/2eO3/4I EaEex1/2EA1/4*EuE ICF1 OAI iA/ T/C1 AOON3/4-EI1/2EaEex1/21/4AaeAE/ICR1 EI OUOIAyIAiO1/4CaAa oOIyOAEa 1 ACaAa SREG OAI I TICIE1A I ICF1 OIOAIE OIAyIA1/2O OCF2 T/C2 EaoE1/2IeO3/4 T/C2 Oe OCR2 AOAEAaE OCF2 OAI EIOUOIAyIAiO1/4CaAa oOIyOAEa 1 ACaAa SREG OAI I OCIE2 I OCF2 OIOAIE OIAyIA1/2O TOV0 T/C0 OcoOIe 3/4I O T/C0 OcoE TOV0 OAI OIaO|AOIAyIoEIO1/4CaAa EIa TOV0 OEOO Iy 1 ACaAa SREG OAI I TOIE0 I TOV0 OIOAIE OIAyIA1/2O OCF0 EaoE1/2IeO3/4 T/C0 Oe OCR0 AOAEAaE OCF0 OAI EIOUOIAyIAiO1/4CaAa oOIyOAEa 1 ACaAa SREG OAI I OCIE0 I OCF0 OIOAIE OIAyIA1/2O
IaOI
IaOIOE INT0/1/2 * 1/4EOa(c)Oy1/2AAaOAIEao OOOIEAU Oy1/2AcAE1/2AaEO
EEOOOy*OI OaECuEuEi1/4OIAOo*1/2* IaOIEOOOEEIEy/IA1/2NOoIcAE1/2 y AE INT2 * E3/4oOU MCUCR INT0/1 I EMCUCR INT2 MCU OOAE1/4AaeAE/ MCUCR BIT 7 6 5 4 3 2 1 0 $35($55) SRE SRW10 SE SM1 ISC11 ISC10 ISC01 ISC00 R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O SRE IaaeAE/EAU SRE I 1 E MCU EOO*AIEIaaeAE/ AD0-7 A U A8-15 C U ALE /WR /RD Oy1/2AAAO COxOOOOCoAaOAEU*1/2Io1/4AaeAE/ Ecu SRE CaAa IaaeAE/I IaOUEOOx/AEOI I/O UEOA SRW10 IaaeAE/EyxI *AIEIaaeAE/E SRW10 OAOUEeOAEyOUAEU SE YAEAU O SLEEP OAiE SE OeOAIAAUE MCU 1/2oEeYAAE1/2 EeYA 1/2OeOe SLEEP OAiIaAEOA
U15O15O
IAE*AOIOa1/4aE MCU 1/2o
ATMEGA161
SM1 YAAE1/2 Oe EMCUCR A SM0 IOAEOAOUNOnYAAE1/2 i 6 SM1 0 0 1 1
Eci 6 EuE3/4 YAAE1/2 OI Ao oc Ec
YAAE1/2 SM0 0 1 0 1
ISC11 ISC10 OI1/4iaOOAE AI 1 II 0 1 NOn INT1 OI*AAANOocAE1/2 EcIAiEuE3/4 i 7 OI 1 1/4iaOOAE ISC11 ISC10 AeEo 0 0 IcAE1/2OI 0 1 EIIA1/4-a1/41/2uEuOICeCo 1 0 IA1/2NOOI 1 1 EIEyNOOI x AaISC11/ISC10 E ExIEO1/2uO INT1 Cay GIMSK A INT1 I *nOoEAUOy*OOAOI ISC01 ISC00 OI1/4iaOOAE AI 1 II 0 0 NOn INT0 OI*AAANOocAE1/2 EcIAiEuE3/4 ISC01 0 0 1 1 x AaISC01/ISC00 E ExIEO1/2uO INT0 Cay GIMSK A INT0 I *nOoEAUOy*OOAOI A(c)OA MCU OOAE1/4AaeAE/ EMCUCR BIT 7 6 5 4 3 2 1 0 $36($56) SM0 SRL2 SRL1 SRL0 SRW01 SRW00 SRW11 ISC2 R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O SM0 YAAE1/2 Oe SM1 OAE3/4oYAAE1/2 SRL2/1/0 IaaeAE/IOAE OOUIAIaaeAE/CoEOONOnIAEyxI SRW01/00/11 IaaeAE/EyxINOn EeOAIaaeAE/AEyxI ISC2 OI1/4iaOOAEI I 0 E INT2 OUIA1/2NO* YAAE1/2 I 1 E INT2 OUEIEyNO* i 8 OI 1 1/4iaOOAE ISC00 AeEo 0 IcAE1/2OI 1 EIIA1/4-a1/41/2uEuOICeCo 0 IA1/2NOOI 1 EIEyNOOI
1/2oEeYAAE1/2AIo1/4EC 1 SE I
EoO SLEEP OAi 3/4IaAAOOOAE1/2OE SM1/0 3/4o EAUAOI1/21/2N MCU IeEOIAyIo MCU O SLEEP OOoAOAi OUYAAEU1/4a 1/4AaeAE/IA1/41/4 I/O AUaeAAUEYaE EcuOUYAAE1/2IAI Oo MCU O RESET IoA $000 |E1/4OE
U16O16O
ATMEGA161
IOAAE1/2
SM1/0 EI 0 E SLEEP OAi1/2E MCU 1/2oEeIOAAE1/2 OUEAE1/2IA CPU IOOE o SPI UART AAaE1/2IAE/ ADC EAE//1/4AEEyAE/ AA*IOIII1/4Iox/ AUIa OI1/4EOO1/2N MCU EcueOOAAaE1/2IAE/OI1/2N MCU IAE1/4oEU|A EOOC IE1/2IAE/AcO *1/2*ECOAI ACSR A ACD Ecu MCU OIOAAE1/21/2N CPU 1/2A1/4O OAi ocAE1/2 SM1/0 I 10 E SLEEP OAi1/2E MCU 1/2oEeocAE1/2 OUEAE1/2IA Ia3/4OnIOn oIaOI1/4AA* OUEAUACIaIA 1/4Iox/ OOIaI AA*IIIacAE1/2 OII INT2 ANOOIEOOE MCU INAeocAE1/2 EOA INT2 ANOOI*1/2E1/21/2 MCU OocAE1/21/2NE MCU EOO1/4CxNOaOOA1/2N EOAIacAE1/2OI*1/2E1/21/2 MCU OocAE1/21/2NE OeOIacAE1/2OAE1/4a OaNu EOOEOO1/4oEU MCU OOeEuAAo AA*OnEOOOOEcAE1/2ENuA1/2I EcucAE1/2IOCo AcAE1/2 Oo MCU 1/2N eAEAAA*OnAE/I 1 s 25 OecOcNOOAOI OE(c)1/4Ooc1/2NIo1/41/2OaeOy1/2NOOoNOUE1/4a EE1/4aOAOU3/4OnOOAAEoIEIAA 1/2 NOUAEUOeIOUAEUECONuA 1/2NIo1/4OeO1/2 MCU OaeOyNyA *nOo MCU OOaO1/2ocAE1/2 EcAE1/2 SM1/0 I 11 E SLEEP OAi1/2E MCU 1/2oEeEcAE1/2 OaOAE1/2OeocAE1/2OOO aI Ecu T/C2 Oi1/2Cy 1/4 ASSR A AS0 OAI Oo T/C2 OUYAE1/4IoOE yAEocAE1/2A 1/2N*1/2E1/2 T/C2 AOcoOIIE1/2IAEAaOIOEOO1/2 MCU OYA*1/2E1/21/2N IAEO1/2 NoOOIAyI OeOAIE3/4OOIEAUI I EAE/
/1/4AEEyAE/
ATMEGA161 AUO 3 oIOAEAE//1/4AEEyAE/ A1/2o 8 I T/C IOo 16 I T/C T/C2 EOON OnOi1/2IaEOO OaoOnAE/O 32.768KHz A3/4Ia1/2oAEOA EAEaEOAx/EEEOO RTC T/C2 3/4OxO1/4A*OAEAE/ o T/C0 I T/C1 OIOo 10 IAO*OAEEAE/EAO*OAEAEOO T/C 1/4EEOAx/EOAAEAUEOOAEAE/ OEOAx/OIa*AA1/4CEyA1/4AEEyAE/
T/C AO*OAEAE/ I1/430
T/C0 I T/C1 AO*OAEAE/ EOO aOUOA
4 OOENAO*OAEEOOI CK/8 CK/64 CK/256 I CK/1024 CK IOnAE/EOO NOn CK IaEOO OO1/4IOx/ 1/4AaeAE/ SFIOR A PSR10 OAOUIO*OAEAE/ CaAE1/2aO*OAEAE/Ax/Ceo I1/4 31 T/C2 AO*OAEAE/
T/C2 AEOOOAEI PCK2 EEO PCK2 OeIIO/EOOA1/2O EoOAI ASSR A AS2 T/C2 1/2OE TOSC1 Oi1/2Cy EA T/C2 EOOx/IOoEEEOO Ecu AS2 OAI Oo TOSC1 I TOSC2 1/4EIa1/2OOoEOO3/4On x/I T/C2 AAAEOOO T/C2 O 32.768K 3/4OnxoAEIOEa AOA T/C2 AEOOAEAEAUOU CPU AEAEA 1/4 OAUOU 256KHz OAI SFIOR A PSR2 1/2IAEa*OAEAE/
U17O17O
ATMEGA161
IOEa|AU IO 1/4AaeAE/ SFIOR
BIT $30($50) A/ oE1/4O I 7...2 Ao
7 R 0
6 R 0
5 R 0
4 R 0
3 R 0
2 R 0
1 PSR2 R/W 0
0 PSR10 R/W 0
PSR2 T/C2 *OAEAE/I OAIo T/C2 AO*OAEAE/I Ux/IeEoO1/4OAEaCaAa Ei1/4AaOaeOyOCaAax/ Ecu T/C2 OEAU CPU EOOCy AEOaOIA1/2auIAa Ecu T/C2 x/OUOi1/2AE1/2 OE xO1/4A3/4OnCy OoOaOI1/2OOOI 1 O1/2Oi1/2Ux/IeE PSR10 T/C1/0 *OAEAE/I OAIo T/C2 AO*OAEAE/I Ux/IeEoO1/4OAEaCaAa Ei1/4AaOaeOyOCaAax/ AEOaOIA1/2auIAa
8 I T/C0 I T/C2 I1/432 I T/C0 AoI1/4
I1/4 32 I1/4 33 T/C0 x/oI1/4 T/C2 x/oI1/4
T/C0 AEOOEOONOn CK O*OAEA CK oOEIaOy1/2AEaEe T/C2 AEOOEOONOn CK O*OAEA CK oOEIaOy1/2A TOSC1 EaEe A1/2o T/C EOOIy TCCR0/2 OOAE1/4AaeAE/oIO TIFR IxIeO3/41/4AaeAE/ TCCR0/2 IOOAE1/4AaeAE/ o TIMSK OOAE T/C AOIAEAI T/C0 OEIaEOOAACyE IAEO CPU OAAAOyE*ENu OOIaAAAx E1/4aOAEUIOo CPU EOOOUAEU MCU OUAU CPU EOOAEIEyNOOIaAA1/2oENu OUIO*OAEIo1/4IA T/C 3/4O*OaeAEI3/4EAIOa oOUO*OAEIo1/4IA T/C *CEE OAOUIEU|AU Ec1/4AEE A1/2o T/C 1/4OO PWM |AU T/C0 OOAE1/4AaeAE/ TCCR0 BIT 7 6 $33($53) FOC0 PWM0 R/W R/W A/ 0 0 oE1/4O
5 COM01 R/W 0
4 COM00 R/W 0
3 CTC0 R/W 0
2 CS02 R/W 0
1 CS01 R/W 0
0 CS00 R/W 0
T/C2 OOAE1/4AaeAE/ TCCR2 BIT 7 6 5 4 3 2 1 0 $27($47) FOC2 PWM2 COM21 COM20 CTC2 CS22 CS21 CS20 R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O FOC0/2 CAEEEaoE1/2I 1 o OO COMn1/0 AEeOA OUOy1/2A PB0 T/C0 I PB1 T/C1 CAEEuEuOIE 1/2IAEAaEao Ecu COM AOOe FOC AOOUIOEeOUAEUuA 3/4I|AU1/2oAO OEOU FOC OAIuEuAE1/2IAEAaauEuOI A FOC A*OOxUIAa OU PWM AE1/2IA FOC
U18O18O
ATMEGA161
AOEIIOaOa
PWM0/PWM2 PWM EAU OAIoEAU T/C0 I T/C2 A PWM |AU COM01 COM00/COM21 COM20 E1/2IEaoAE1/2 COMn1 I COMn0 3/4o T/C E1/2IAEAa*EuEEaoOy1/2A PB4 OC0 I PB1 PC2 Ax/ OaEC I/O UAU|AU IaO|A*1/2IoOOAEIOEeOAI 1 OOa1/2AEaAaOAIEao 3/4IaAaOA 1/4ui 9 i 9 COMn1 0 0 1 1 n = 0 o 2 COMn0 0 1 0 1 E1/2IAE1/2NOn AeEo T/Cn OeEaoOy1/2A Ocn I Ocn Eaoa Cay Ocn OAI Ocn
CTC0/CTC2 E1/2IAEAaECay T/C0 T/C2 CTCn I 1 E E1/2IAEAaEA1/4*Euo T/Cn 1/2II 0 Eo CTCn I 0 Oo T/Cn 1/2A o1/4CEyoEUE1/2IAEAaAOIi OEOUE1/2IAEAaEA1/4A1/4ia*EuOUAEAa*EuO(R)oAOo CPU EOO EoEAE/AO*OAEEAEAI1/2OyAEE|AUOIAiIO O*OAEI 1 E1/2IAE Aa1/4AaeAE/AOEeOAI C E EAE/A1/4CEy*1/2E1/2I ...| C-2 | C-1 | C | 0 | 1 |... oO*OAEI 8 E EAE/A1/4CEy*1/2E1/2OoI
... | C-2, C-2, C-2, C-2, C-2, C-2, C-2, C-2 | C-1, C-1, C-1, C-1, C-1, C-1, C-1, C-1 | C, 0, 0, 0, 0, 0, 0, 0 |...
OU PWM AE1/2IA
Oa1/4IAOx/OA
CS02 CS01 CS00/ CS22 CS21 CS20 EOONOn i 12 T/C0 O*OAENOn CS02 CS01 CS00 AeEo 0 0 0 IO 0 0 1 CK0 0 1 0 CK0/8 0 1 1 CK0/64 1 0 0 CK0/265 1 0 1 CK0/1024 1 1 0 IaOy1/2A T2 IA1/2NO 1 1 1 IaOy1/2A T2 EIEyNO i 13 T/C2 O*OAENOn CS02 CS01 CS00 AeEo 0 0 0 IO 0 0 1 PCK 0 1 0 PCK/8 0 1 1 PCK/32 1 0 0 PCK/64 1 0 1 PCK/128 1 1 0 PCK/256 1 1 1 PCK/1024 IOIo1/4Ia(c)AEOoEAE/EAU/1/2uOA|AU O*OAEA CK O1/2OOEEOOOnAE/*OAEoA Ecu T/C0 EOAAEIaOy1/2AAE1/2 [CS02 CS01] = [1 1] OoAUOy1/2AAaOAEcI PB0 T0 Aa1/41/2E T/C2 a
U19O19O
ATMEGA161
T/C0 TCNT0 BIT 7 $32($52) MSB R/W A/ 0 oE1/4O
6 R/W 0
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 LSB R/W 0
T/C2 TCNT2 BIT 7 6 5 4 3 2 1 0 $23($43) MSB LSB R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O T/Cn ECEOO1/2oA/*AIEAIoEI1/4AEEyAE/ OOOEOOEaEe T/Cn 3/4IaOUEeAOuEI1/4I o1/4CEy T/C0 EaoE1/2I1/4AaeAE/ OCR0 BIT 7 6 $31($51) MSB R/W R/W A/ 0 0 oE1/4O
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 LSB R/W 0
T/C2 EaoE1/2I1/4AaeAE/ OCR2 BIT 7 6 5 4 3 2 1 0 $22($42) MSB LSB R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O T/Cn EaoE1/2I1/4AaeAE/uOe T/Cn OAoE1/2IAEy3/4Y Ecu T/Cn AOOe OCRn IaE OoE 1/2IAEAa*Eu OAEi1/4Ux/1/2 TCNTn I OCRn EeOAIIaEaOy*E1/2IAEAa E1/2IAEAa*Euo1/2OAIIaO|AOIeO3/4 PWM AE1/2IAAT/C0 I T/C2 NOn PWM AE1/2o T/C Ex/IEIEy/IA1/2oO3/4i O$FF O1/2OO1/2 0 |AU NOnEIEy/IA1/2AE1/2o T/C0 I T/C2 IEaoE1/2I1/4AaeAE/ OCR0/OCR2 *OxeE 8 II1/4a*aA xOOEOEA IaIEaA PWM EaoOy1/2AI PB0 OC0/PWM0 I PB1 OC2/PWM2 NOnO3/4iAE1/2o T/C0 I T/C2 IEaoE1/2I1/4AaeAE/ OCR0/OCR2 *OxeE 8 II1/4a*aA xO OEOEA IaIEaA PWM EaoAEAEIEIEy/IA1/2AE1/2A 2
PWM AE1/2 EIEy/IA1/21/4O3/4i IyOCTC0/2 AEeOA EOOA1/2A1/2OO PWM AE1/2
Eo CTC0/2 IAa Oo T/Cn x/IEI/IA1/4AEEyAE/ O 0 1/4CEy1/2$FF Eo*Io1/4CEyO1/2 0 1/4AEEy AE/OAEyOI OCR0/OCR2 A E y O O O A E OC0/OC2 O y 1/2 A O OCOM00/COM01 I COM20/COM21 AEeOAx/ Eo CTC0/2 I 1 Oo T/Cn x/IO3/4i1/4AEEyAE/ O 0 1/4CEy1/2$FF EoO1/2OO1/2 0 1/4AEEyAE/ OAEyOI OCR0/OCR2 A E y O O O A E OC0/OC2 O y 1/2 A O OCOM00/COM01 I COM20/COM21 AEeOAx/ i 14 PWM AE1/2IAAE1/2IAE1/2NOn COMn0 Oy1/2Ax/
CTCn
COMn1
AEAE
U20O20O
ATMEGA161
0 0 0 0
0 0 1 1
0 1 0 1
1 0 0 1 0 1 1 1 0 fTCK0/2 /256 1 1 1 fTCK0/2/256 n = 0 o 2 xOa OU PWM AE1/2IA OCR0/OCR2 ExIEaeOUOoAUEAIOA E1/2i1/2$FF EAOaeOy aeEe OaNuEOO*AOOU OCR0/OCR2 EOEOUE1/2ooIOAEaeEyEA PWM Aoa I1/4 34 I1/4 35 E1/2A OCR Eoae EIEy/IA1/2AE1/2 O3/4iAE1/2
OAx/ PWM |AU OAx/ PWM |AU IoEI1/4CEyEAAEAaCay Ocn oIoIA 1/4CEyEAAEAaOAI Ocn OyIo PWM IoIA1/4CEyEAAEAaCay OCn oIoEI 1/4CEyEAAEAaOAI Ocn *Io PWM OAx/ PWM |AU OAx/ PWM |AU E1/2IAEAaECay Ocn OcoEOAI Ocn OcoEOAI Ocn E1/2IAEAaECay Ocn
fTCK0/2/510 fTCK0/2/510
E1/2A OCR Eoae
EcuOUOIEoaeUx/AEoAE OCR0/OCR2 A1/2AECAUEIOAAEy3/4Y OCR0/OCR2 AOI$00 o$FF E OCn AEao1/4ui 15 i 15 OCRn=$00 o$FF EA PWM Eao COMn1 COMn0 OCRn OCn 1 0 $00 L 1 0 $FF H 1 1 $00 H 1 1 $FF L n = 0 o 2 OUEIEy/IA1/2AE1/2IA 1/4AEEyAE/i1/2$00 E1/2OAI TOV0/TOV2 oOUO3/4iAE1/2IA*EuAOI OeE/1/4CEyAE1/2IAAOIECIeEONuA Oi1/2xI1/4AaeAE/ ASSR BIT 7 6 $26($46) R R A/ 0 0 oE1/4O I 7...4 Ao
5 R 0
4 R 0
3 AS2 R/W 0
2 TCN2UB R/W 0
1 OCR2UB R/W 0
0 TCR2UB R/W 0
AS2 Oi1/2 T/C2 AS2 OAIE T/C2 OE TOSC1 Cy PD4 I PD5 A1/2O1/23/4IaOnAE/ AUOAx/AEOI I/O Eo AS2 I 0 Oo T/C2 OEAUIIEOOCy OaOIaEOEAUAEAE TCNT2 OCR2 I TCCR2 TCN2UB T/C2 uAA| T/C2 x/OUOi1/2AE1/2E TCNT2 1/2OyAE TCN2UB OAI TCNT2 OOYae1/4AaeAE/uAIe Io TCN2UB OEO1/4CaAa TCN2UB I 0 iA/ TCNT2 EOOEeAOAE OCR2UB EaoE1/2I1/4AaeAE/uAA| T/C2 x/OUOi1/2AE1/2E OCR2 1/2OyAE OCR2UB OAI OCR2 OOYae1/4AaeAE/uAIeI o OCR2UB OEO1/4CaAa OCR2UB I 0 iA/ OCR2 EOOEeAOAE TCR2UB T/C2 OOAE1/4AaeAE/uAA| T/C2 x/OUOi1/2AE1/2E TCCR2 1/2OyAE TCR2UB OAI TCCR2 OOYae1/4AaeAE/uAIe
U21O21O
ATMEGA161
Io TCR2UB OEO1/4CaAa
TCR2UB I 0 iA/ TCCR2 EOOEeAOAE EcuOUuAA|eO3/4OAIAEoEIEoEIIOo1/4AaeAE/1/41/2OyAEEy3/4YAAEAE Oy*OOA OI O TCNT2 OCR2 I TCCR2 1/2oAEAuOAEECIA A1/2A TCNT2 IE1/4EAO o OCR2 I TCCR2 OoECOOYae1/4AaeAE/OAEA
T/C2 AOi1/2Ux/ T/C2 Oi1/2x/EO1/4ACEcIA1/4a l 3/4ae OUI1/2IOi1/2AE1/2O(R)1/4aAxOEAUOiE TCNT2 OCR2 TCCR2 Ey3/4YAEU EA1/2OeO|AEC 1 OO T/C2 AOI OCIE2 I TOIE2 2 EeOA AS2 OONOnIEEAEOOO 3 TCNT2 OCR2 I TCCR2 EeAAEyO 4 Ey TCN2UB OCR2UB I TCR2UB CaAa 5 OOA AEoOI l OnAE/O A3/4On1/2oAEOA AEaOIaEaEeEOOAAAoiI 256kHz OoE 32768Hz OIaEaEeAEOOAAAUOU 256kHz AiIa EAAAUOUIIO/EOOA 1/4 l TCNT2 OCR2 I TCCR2 EEy3/4YExIE1/2OYae1/4AaeAE/ A1/2o TOSC1 OyIoaoAEo ae OAOUEy3/4YOOYae1/4AaeAE/EeAA1/4AaeAE/O(R)CAUEeAAEyO 3 o1/4AaeAE/3/4O /xOAAAOYae1/4AaeAE/ OoE TCNT2 aEEA OCR2 EOOIy ASSR 1/4ieEy3/4Y EC*nON3/4-Ee1/2AA1/4AaeAE/ l EcuOOA T/C2 x/I MCU A1/2NIo1/4 OoOU TCNT2 OCR2 I TCCR2 uA1/2aEoO(R)C AU1/2oEeEcAE1/2 *nOo MCU EAUaOU T/C2 EeOAEuO(R)C1/2oEeYAAAE1/2 OaOOU OA T/C2 AE1/2IAEAaOI1/2N MCU OEAEaOOO OoIOUuA OCR2 o TCNT2 EE1/2IAEAa EC1/2uOA EcuOUuAyIO MCU 1/2oEeYAAE1/2 OoE1/2IAEAaOIOAOa*Eu l EcuOOA T/C2 x/IEcAE1/2A1/2NIo1/4 OexOaOOA1/2oEeEcAE1/2AyI OIA 1/4-eOOo TOSC1 OUAEU1/2oI EcuO1/2N1/2OOA1/2oEeYAAE1/4aOUOo TOSC1 OUAEU OI1/2OU*Eu AE/1/4OUOI*1/2N EcuOAOExO1/4IoEC*nAuxaOaOIo1/4 OoEOOEEEcIA*1/2* 1 O TCNT2 OCR2 I TCCR2 EeOoIEEAO 2 EyuAA|eO3/4aI 3 1/2oEeEcAE1/2 l EoNOnAEOi1/2x/AE1/2 T/C2 AOnAE/1/2OOx/ y*C1/2oEeocAE1/2 OAO|Ax Oa EOnAE/AIEE1/4aEAUi 1 AeOO OoE 1/2NoxiAEII1/2OeOAOUAE/1/4Oo cAE1/21/2NoEIcEOAEUEy 1 AeOOoOUEOA T/C2 l EcAE1/21/2NyI OIIo1/4Auxao OUIAOoEAE/EOOAi1/2NyIAEo OU MCU EOOAEoA 3 oOUAEU OIeO3/4OAI OUEAEU1/4a MCU OAEaEuOAi OIIo1/4 EA OIAyIOaO l OUOi1/2AE1/2IA OIeO3/4AI1/2eO 3 o|AiAE/OUAEU1/4OOoEAE/OUAEU EaoE1/2IOy1/2A AaOeEAE/EOOI1/2 oEC|AiAE/EOO
16 I T/C1 I1/436 I T/C1 AoI1/4
I1/4 36 T/C1 x/oI1/4
U22O22O
ATMEGA161
T/C1 AEOOEOONOn CK O*OAEA CK oIaOy1/2AEaEe AiIaEOOOE T/C1 OOAE1/4AaeAE/ TCCR1B AIOEu TIFR IxIeO3/41/4AaeAE/ o TIMSK OOAE T/C1 AOIAEAI T/C1 OEIaEOOAACyE IAEO CPU OAAAOyE*ENu OOIaAAAx E1/4aOAEUIOo CPU EOOOUAEU MCU OUAU CPU EOOAEIEyNOOIaAA1/2oENu OUIO*OAEIo1/4IA T/C1 3/4O*OaeAEI3/4EAIOa oOUO*OAEIo1/4IA T/C1 *C EEOAOUIEU|AU Ec1/4AEE AuOAEaoE1/2I1/4AaeAE/ OCR1A/OCR1B x/IEy3/4YO T/C1 EOOEIOEaoE1/2IA|AU E| AUuAE1/2IAEAa A *EuECay1/4AEEyAE/IE1/2IEaoOy1/2AAx/ T/C1 EOOOAx/ 8 9 o 10 IA PWM /OAEAE/ OUEAE1/2IA 1/4AEEyAE/I OCR1A/OCR1B 1/4A aeAE/OAOUA1/2oI1/4a*aEEAAOAOAE/*COAOAEA PWM EaEex1/2Oy1/2A ICP *EuIaO|EA1/4E T/C1 AO1/21/2EaEex1/21/4AaeAE/ ICR1 x1/2EA1/4 AEeOAOE TCCR1B OOAE EIa AAaE1/2IAE/OEOOEeOAI*EaEex1/2 ICP Oy1/2AA1/4-1/4u I1/4 37 I1/4 37 ICP Oy1/2AO-AiI1/4
EcuOeEuOOOAE|AUEAU Oo*AAO1/2o 4 IENu OO 4 oENuO1/4IaEE Aa *x1/2eO3/4 T/C1 OOAE1/4AaeAE/A TCCR1A BIT 7 6 COM1A $2F($4F) COM1A
1 0
5
COM1B 1
4
COM1B 0
3
FOC1A
2
FOC1B
1
PWM11
0
PWM10
R/W R/W R/W R/W R/W R/W R/W R/W A / 0 0 0 0 0 0 0 0 oE1/4O COM1A1 COM1A0 E1/2IEaoAE1/2 1A I 1 I 0 COM1A1 I COM1A0 3/4o T/C1 AE1/2IAEAa*EuEEaoOy1/2A OC1A Ax/ OaEC I/O UA U|AU IaO|A*1/2IoOOAEIOEeOAI 1 OOa1/2AEaAaOAIEao 3/4IaAaOA1/4ui 14 COM1B1 COM1B0 E1/2IEaoAE1/2 1B I 1 I 0 COM1B1 I COM1B0 3/4o T/C1 AE1/2IAEAa*EuEEaoOy1/2A OC1B Ax/ COM1X1 0 0 1 1
X = A o B OU PWM AE1/2
i 14 COM1X0 0 1 0 1 Oa(c)I3/4OIA|AU
E1/2I 1 AE1/2NOn AeEo T/C1 OeEaoOy1/2A OC1X I OC1X Eaoa Cay OC1X OAI OC1X I1/2U1/4ui 18
FOC1A CAEEEaoE1/2I A 1 o OO COM1A0/1 AEeOA OUOy1/2A PD5 CAEEuEuOIE1/2IAEAaEao Ecu COM AOOe FOC AOOUIOEeOUAEUuA 3/4I|AU1/2oAO CAEEEaoE1/2I|AUEA MCU EOOOAEyE1/2IAEAaA*Eu3/4IaOy1/2AAEao OEOU FOC OAIuEuAE1/2IAEAaaOy* OI OaCay TCNT1 A FOC A*OOxUIAa OU PWM AE1/2IA FOC AOOa FOC1B CAEEEaoE1/2I B 1 o OO COM1B0/1 AEeOA OUOy1/2A PE2 CAEEuEuOIE1/2IAEAaEao
U23O23O
Ecu COM
ATMEGA161
FOC AOOUIOEeOUAEUuA 3/4I|AU1/2oAO CAEEEaoE1/2I|AUEA MCU EOOOAEyE1/2IAEAaA*Eu3/4IaOy1/2AAEao OEOU FOC OAIuEuAE1/2IAEAaaOy* OI OaCay TCNT1 A FOC A*OOxUIAa OU PWM AE1/2IA FOC AOEIIOaOa PWM11 PWM10 PWM NOn i 15 PWM AE1/2NOn PWM11 PWM10 AeEo 0 0 T/C1 A PWM Ux/I 0 1 T/C1 I 8 I PWM 1 0 T/C1 I 9 I PWM 1 1 T/C1 I 10 I PWM
AOOe
T/C1 OOAE1/4AaeAE/B TCCR1B BIT 7 6 $2E($4E) ICNC1 ICES1 R/W R/W A/ 0 0 oE1/4O I 5 4 Ao
5 R 0
4 R 0
3 CTC1 R/W 0
2 CS12 R/W 0
1 CS11 R/W 0
0 CS10 R/W 0
ICNC1 EaEex1/2OOOAEAE/ 4 oEOO ICNC1 O EaEex1/2OU ICP-EaEex1/2Oy1/2AAUOoEIEy/IA1/2NO* ICNC1 I 1 E ICP AAO1/2o 4 IAoENu OO 4 oENuO1/4OEEaEex1/2eO3/4AOAI ENuAE AEI XTAL EOO ICES1 EaEex1/21 NONOn ICES1 II 0 E T/C1 AOOU ICP Oy1/2AcAE1/2AIA1/2NOEI1/2EaEex1/21/4AaeAE/ ICR1 Eo ICES1 II 1 Oo T/C1 AOOU ICP Oy1/2AcAE1/2AEIEyNOEI1/2 ICR1 CTC1 E1/2IAEAaECay T/C1 CTC1 I 1 E E1/2I A AEAaEA1/4*Euo T/C1 1/2II 0 Eo CTC1 I 0 Oo T/C1 1/2Ao1/4CEyoEUE1/2IAEAaAOIi OEOUE1/2IAEAaEA1/4A1/4ia*EuOUAEAa*EuO(R)oAOo CPU EOO EoEAE/AO*OAEEAEAI1/2OyAEE|AUOIAiIO O*OAEI 1 A E1/2IAEAa1/4AaeAE/AOEeOAI C E EAE/A1/4CEy*1/2E1/2I ...| C-2 | C-1 | C | 0 | 1 |... oO*OAEI 8 E EAE/A1/4CEy*1/2E1/2OoI
... | C-2, C-2, C-2, C-2, C-2, C-2, C-2, C-2 | C-1, C-1, C-1, C-1, C-1, C-1, C-1, C-1 | C, 0, 0, 0, 0, 0, 0, 0 |...
OU PWM AE1/2IA Oa1/4IAOx/OA CS12 CS11 CS10 EOONOn i 16 CS12 CS11 CS10 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 T/C1 TCNT1HI TCNT1L
T/C1 O*OAENOn AeEo IO CK CK/8 CK/64 CK/256 CK/1024 IaOy1/2A T1 IA1/2NO IaOy1/2A T1 EIEyNO
U24O24O
ATMEGA161
LSB 7 6 5 4 3 2 1 0 R/W R/W R/W R/W R/W R/W R/W R/W A/ R/W R/W R/W R/W R/W R/W R/W R/W 0 0 0 0 0 0 0 0 oE1/4O 0 0 0 0 0 0 0 0 E 16 I1/4AaeAE/uAE T/C1 AO CPU *AIEOaA1/2o1/4AaeAE/E IAEOxO1/2UIIxO1/2U AUIEA OOA1/2Oo 8 IAAUE1/4AaeAE/ TEMP E1/4AaeAE/OU*AIE OCR1A OCR1B I ICR1 AEoOOOA1/2 EcuO/IoIOIIoOU*AIE1/4AaeAE/E1/4OOA1/2 TEMP ACAOUEE AEoeOOOOIEAU*AOoi l TCNT1 CPU TCNT1H E Ey3/4Y1/2*AOAOU TEMP 1/4AaeAE/ CPU IxO1/2U TCNT1L E EEy3/4Y1/4 TEMP OAEy3/4YOEe TCNT1 OoE OU TCNT1 16 I E ExIEO TCNT1H l A TCNT1 CPU AE TCNT1L E TCNT1L AEy3/4Y1/2EIEe CPU IE TCNT1H 1/2EIEe TEMP 1/4AaeAE/ E1/2 CPU AE TCNT1H E TEMP OAEy3/4YEIEe CPU OoE OUA 16 IA TCNT1 E ExIEOA TCNT1L T/C1 ECIoEI1/4CEyAE/oEI/IA1/4CEyAE/ OU PWM AE1/2IA Eo T/C1 OAEy Oo T/C1 1/2OUOOA EyAuEI1/4CEy T/C1 EaoE1/2I1/4AaeAE/ OCR1AH I OCR1AL BIT 15 14 13 12 11 10 9 8 $2B($4B) MSB $2A($4A) LSB 7 6 5 4 3 2 1 0 R/W R/W R/W R/W R/W R/W R/W R/W A/ R/W R/W R/W R/W R/W R/W R/W R/W 0 0 0 0 0 0 0 0 oE1/4O 0 0 0 0 0 0 0 0 T/C1 EaoE1/2I1/4AaeAE/ OCR1BH I OCR1BL BIT 15 14 13 12 11 10 9 8 $29($49) MSB $28($48) LSB 7 6 5 4 3 2 1 0 R/W R/W R/W R/W R/W R/W R/W R/W A/ R/W R/W R/W R/W R/W R/W R/W R/W 0 0 0 0 0 0 0 0 oE1/4O 0 0 0 0 0 0 0 0 T/C1 EaoE1/2I1/4AaeAE/uOe T/C1 OAoE1/2IAEy3/4Y Ecu T/C1 AOOe OCR IaE OoE1/2I AEAa*Eu OAEi1/4Ux/1/2 TCNT1 I OCR1A o OCR1B EeOAIIaEaOy*E1/2IAEAa OEOU OCR1A/OCR1B I 16 I1/4AaeAE/ EuOOOU*AIEEOOA1/2 TEMP 1/4AaeAE/OOOA1/2oxO1/2UA I1/2uA AEaAyIOeA TCNT1 IaI *AIE TCNT1 I ICR1 INuOOA1/2 TEMP 1/4AaeAE/ EcuO/IoIOIAyI1/4OOA1/2 TEMP OoOUO/Io*AIEOa(c)1/4AaeAE/EO1/2uOOI
BIT $2D($4D) $2C($4C)
15 MSB
14
13
12
11
10
9
8
U25O25O
ATMEGA161
T/C1 EaEex1/21/4AaeAE/ ICR1H I ICR1L BIT 15 14 13 12 11 10 9 8 $25($45) MSB $24($44) LSB 7 6 5 4 3 2 1 0 R R R R R R R R A/ R R R R R R R R 0 0 0 0 0 0 0 0 oE1/4O 0 0 0 0 0 0 0 0 OO ICES1 AEe EaEex1/2Oy1/2A ICP *EuEIIoaoIAIoaE TCNT1 EIEe ICR1 IE ICF1 OAI OEOU ICR1 I 16 I1/4AaeAE/ EuOOOU*AIEEOOA1/2 TEMP 1/4AaeAE/OOOIEAEA1/2oxO1/2U AyIOeA TCNT1 IaI PWM AE1/2IAAT/C1 NOn PWM AE1/2o T/C1 IEaoE1/2I1/4AaeAE/ OCR1A/OCR1B IxeEA1/2o 8 9 o 10 IA I1/4a*aAxOOEOEA PWM T/C1 x/IEI/IA1/4AEEyAE/ O 0 1/4CEy1/2 TOP Eo*Io1/4CEyO1/2 0 1/4AEEyAE/OAEyOI OCR1A/OCR1B AEyO I 8 9 o 10 I OOAE OC1A/OC1B Oy1/2AOO COM1A0/COM1A1 I COM1B0/COM1B1 AEeOAx/ i 17 TOP O1/4 PWM AEAE CTC1 PWM11 PWM10 WPM *OaeAE TOP O AEAE 0 0 1 fTCK1/510 8 I $00FF 255 0 1 0 fTCK1/1022 9 I $01FF 511 0 1 1 fTCK1 /2046 10 I $03FF 1023 1 0 0 fTCK1/256 8 I $00FF 255 1 1 1 fTCK1/512 9 I $01FF 511 1 1 0 fTCK1/1024 10 I $03FF 1023 EcEIiEuE3/4 PWM x/OU 8/9/10 I*OaeAE OCR1A/B OIEOAAIOEO1/4xOIAa CTC1 0 0 0 0 1 1 1 1
X = A o B xOa
COM1X1 0 0 1 1 0 0 1 1
i 18 PWM AE1/2IAAE1/2I 1 AE1/2NOn COM1X0 OC1 0 OAx/ PWM |AU 1 OAx/ PWM |AU 0 IoEI1/4CEyEAAEAaCay OC1 oIoIA1/4CEyEAAE AaOAI OC1 OyIo PWM 1 IoIA1/4CEyEAAEAaCay OC1 oIoEI1/4CEyEAAE AaOAI OC1 *Io PWM 0 OAx/ PWM |AU 1 OAx/ PWM |AU 0 E1/2IAEAaECay Ocn OcoEOAI Ocn 1 OcoEOAI Ocn E1/2IAEAaECay Ocn
OU PWM AE1/2IA OCR1A/OCR1B AI 10 IExIEaeOUOoAUEAIOA E1/2 T/C1 i1/2 TOP EAOaeOyaeEe OCR1A/OCR1B OaNuEOO*AOOU OCR1A/OCR1B EOEOUE1/2o oIOAEaeEyEA PWM Aoa I1/4 38 E1/2A OCR1 Eoae I1/4 38 E1/2A OCR1 Eoae O3/4iAE1/2 EcuOUOIEoaeUx/AEoAE OCR1A/OCR1B A1/2AECAUEIOAAEy3/4Y
U26O26O
ATMEGA161
OCR1 AOI$0000 o TOP E OC1 AEao1/4ui 13 COM1X1 1 1 1 1
X = A o B OUEIEy /IA1/2AE1/2IA
i 19 OCR1X=$0000 o TOP EA PWM Eao COM1X0 OCR1X 0 $0000 0 TOP 1 $0000 1 TOP
OC1X L H H L
1/4AEEyAE/i1/2$0000 E1/2OAI TOV1 oOUO3/4iAE1/2IA*EuAOIOe E/1/4CEyAE1/2IAAOIECIeEONuA AA*EAE/
AA*EAE/OEAEAUAAAOnAE/Cy OUVC C=5V AIo1/4IA
aIOnAEAEI 1MHz I y/OuEAE/AO*OAEOoEy 8 OO EOOAaAA*IE1/4a1/4ao AA*IOAiEC WDT EcuEE1/4aON3/4-1/2 oCOAOO WDT OAi OoAA*1/2I MCU ATMEGA161 O IOO*OOAE1/4O IAE*AOAOOAA* eOOOoIOAOOIo I1/4 40 AA*EAE/
AA*EAE/OOAE1/4AaeAE/WDTCR BIT 7 6 5 $21($41) R R R A/ 0 0 0 oE1/4O I 7...5 Ao WDTOE AA*OOEAU WDE CaAaEEIOeI 1
4 WDTOE R/W 0
3 WDE R/W 0
2 WDP2 R/W 0
1 WDP1 R/W 0
0 WDP0 R/W 0
AAUOOAA*
OUOAIA 4 oEOOo
O1/4OAEaCaAa OOIAIOO
WDE AA*EAU WDE I 1 E AA*EAU OOOU WDTOE I 1 E WDE AAUCaAa AA*A1/2Oe 1 OUIOoOAiAUO WDTOE I WDE A1/4- 1 1/4E WDE ON3/4-I 1 2 OU 4 oEOOO(R)AU O WDE A1/4- 0 WDP2...0 O*OAEAE/
i 20 AA*EAE/O*OAENOn WDP2 WDP1 WDP0 OnOUAEU aIOcoE1/4a CC =3V V aIOcoE1/4a CC =5V V 0 0 0 16K 47ms 15ms 0 0 1 32K 94ms 30ms 0 1 0 64K 0.19s 60ms 0 1 1 128K 0.38s 0.12s 1 0 0 256K 0.75s 0.24s 1 0 1 512K 1.5s 0.49s 1 1 0 1024K 3.0s 0.97s 1 1 1 2048K 6.0s 1.9s xOa AA*AOnAEAEOUcNOO WDT O|AOUAA*EAUO(R)COOI EcuAA*OUIO(R)CEAU OoAA*E AE/OEAUECO 0 E1/41/4CEy
U27O27O
ATMEGA161
EEPROM A/
EEPROM *AIE1/4AaeAE/IOU I/O O1/4a EEP AE1/4aOecNOO oAOU 2.5~4ms O(R)1/4a xOE|AUEOOEAOA1/4aaIEE1/4 IAOxO1/2U EcuOAOUx/ EEPROM O|xOaEcIAIEIa OUcOAEE1/4aEyE1/2IoA cA*O EIc/IAcE VCC EIEy /IA1/2aE1/2IAy EE MCU 1/2x/OUIOU3/4OnEuOCoAcO cN OUOaOOCeoIA IoOOeOEAUAU*E O EEP OAi IAEO EEP AEy3/4YIe OuO 1/2OeEOAcNIcA* IAE*AOIOaEA EEPROM Ux/ eOOOoIOAEo 3/4IaIooAUEY O EEPROM A/Ux/E CPU aIOx/ 2 oOUAEU EoOUOooOAi EEPROM OO*1/4AaeAE/ EEARH I EEARL BIT 15 14 13 12 11 10 9 8 $1F($3F) EEAR8 $1E($3E) EEAR7 EEAR6 EEAR5 EEAR4 EEAR3 EEAR2 EEAR1 EEAR0 7 6 5 4 3 2 1 0 R R R R R R R R/W A/ R/W R/W R/W R/W R/W R/W R/W R/W 0 0 0 0 0 0 0 X oE1/4O X X X X X X X X EEARH I EEARL O ATMEGA161 A 512 xO1/2UA EEPROM EEPROM AOO*ECIOA O 0 1/2 511 EEPROM Ey3/4Y1/4AaeAE/ EEDR BIT 7 6 5 4 3 $1D($3D) MSB R/W R/W R/W R/W R/W A/ 0 0 0 0 0 oE1/4O EEDR7...EEDR0 EEPROM Ey3/4Y OOU EEPROM Ux/ EEDR ECeO1/2 DDAR OAEy3/4Y O* EEAR AEAEy3/4Y EEPROM OOAE1/4AaeAE/ BIT 7 $1E R A/ 0 oE1/4O I 7...3 Ao EECR 6 R 0
2 R/W 0
1 R/W 0
0 LSB R/W 0
OOUAUx/
EEDR ECOO
5 R 0
4 R 0
3 EERIE R 0
2 EEMWE R/W 0
1 EEWE R/W 0
0 EERE R/W 0
EERIE EEPROM x1/4AOIEAU I I EERIE OAIE EEPROM x1/4AOIEAU I1/2uEu constant OI
EEWE I
0
E
EEPROM x1/4AO
EEMWE EEPROM O/EAU EEMWE 3/4oEC*nEeOA EEWE I 1 OO EEPROM EEMWE I 1 E OAI EEWE 1/2NEy3/4YEe EEPROM AOOO* Eo EEMWE I 0 Oo EEWE AEx/OA EEMWE OA Io 4 oOUAEU O1/4OAEaCaAa EEWE EEPROM EAU EEP Ey3/4YIOO*EeOAAO(R)o eOAI EEWE OOa1/2Ey3/4YEe EEPROM EoEcIA U
U28O28O
ATMEGA161
2 IU 3 1/2ECOeA 1 Ey EEWE I 0 2 1/2 EEP AAOO*Ee EEAR 3 1/2AEy3/4YEe EEDR 4 OAI EEMWE 5 OUOAI EEMWE A 4 oOUAEUAU O EEWE A1/4- 1 3/4-y*AIEE1/4a VC C=2.7V EI 4ms xoOO VCC=5V EI 2.5ms xoOO O(R)o EEWE O1/4 CaAa OAEOOAE3/4EIAIEoEC*nON3/4-IeE EEWE OAIo CPU OIO 2 oOUAEU xOa *EuOU1/2Oe 4 I 5 O(R)1/4aAOI1/21/4OAUx/EU EcuOoUx/ EEP AOIoIAE EEP Ux/ RRAR o EEDR 1/4AaeAE/EAUA OyAE EEP Ux/EU 1/2OeEEOOE3/4OO IeO3/4 I EERE EEPROM AEAU EEP OO*EeOAAO(R)o eOAI EERE OOa1/2Ey3/4YAEe EEDR EERE CaAaiE3/4 EEPROM AEy3/4YON3/4-AEe EEDR EEPROM Ey3/4YAAEOeOOIoOAi COIeEy EERE OAIo CPU OIO 2 oOUAEU OAOUAE EEP EO|A1/4ia EEWE EcuOoUx/OyOU1/2o EEAR I EEDR 1/2OI EEP AEe EA1/2auI*Oa *AO EEPROM Ey3/4YU OEOUcOcNyI CPU I EEPROM OEAUx/Oy OiE EEPROM Ey3/4YAU Oa OOCeoOUEOAAAA EEPROM AE/1/4EOaOo1/2 OEOUcNyIOiE EEPROM Ey3/4YEOA1/2OOEAU OECcNIOA EEPROM Ux/EueO AxiIcN EC CPU 3/4EiON3/4-I*Oyx/ EEPROM Ey3/4YEAIEIaEOOIyOOIA 3 OO*1/2*1/2a3/4o 1 cNyIEO /RESET AAII OaEOOIyIa1/4OIcA* BOD Brown-out Detection AIeE O(c) AVR uAE*3/4Ei3/4IAU BOD cA* IeCeCeOOEy3/4YEOa 2 VCC yIEE AVR AUE|OUocYAxI OaEOO*AO CPU OIo1/2aAeIOuAe O*AOO EEPROM AIoUx/ 3 1/2AC(c)eAAEyaeOU FLASH O(R)O (R)IaEe1/2OU
SPI
ATMEGA161 SPI
(R)IaEe1/2OU OEi ATMEGA161 IIaEeO(R)1/4a1/2oEUAI1/2Ey3/4YEa SPI
AIOaEcIA l EE 3 II1/2Ey3/4YEa l O/OUx/ l LSB OUIEo MSB OUIE l 7 OOEaIAEIOAE l Ea1/2aEoOI l AoxeO3/41/4ia l EOOOIOAAE1/21/2N x/IOux/E l 3/4OEEUAE1/2 I1/4 41 SPI *1/2oI1/4
U29O29O
ATMEGA161
O/O CPU A SPI A1/2O1/4uI1/4 42
PB7 SCK IO/uAEOOEao OuAEOOEao NEy3/4Y EeO/u SPI Ey3/4Y1/4AaeAE/AUx/1/2AEo SPI EOOuEuAE/ Ey3/4YOO/uA PB5 MOSI OAEo OOuA PB5 MOSI OAEEe OAEIeOoxO1/2Uo SPI EOOIO EeOA*EI1/2aEoeO3/4 E EEcu SPCR A SPIE SPI OIEAU OAI OoOy*OI EoONOnAAE/1/4IOu eO1/2 OuNOnEaEe PB4 /SS A-I O/OuAOAEI1/4AaeAE/EOOEOo*O1/4E1/2A 16 IN-* OAEI1/4AaeAE/ Ey3/4YOO/uOAEIoOuAIE Ey3/4YOOOuOAEIoO/u OaEA/OUOAEIyI O O/Ou1/2oAEEy3/4Y1/2 I1/4 42 SPI O/OA1/2O
SPI OU*EI*1/2IoOOoaAE/ oOU1/2OEO*1/2IoOA1/2oaAE/ OaOaIxAOUOAEIOUAEUAOIeE 1/2aEoO(R)C AAEy3/4YAU1/2 SPI Ey3/4Y1/4AaeAE/ oOUAAEy3/4YIeEOAEEe SPI Ey3/4Y1/4AaeAE/O(R)C 3/4EAEy3/4YOeAo SPI |AUEAUo MOSI MISO SCK I/SS Oy1/2AxOAaOAEEcIA i 21 SPI Oy1/2AAaOA Oy1/2A *1/2Io O/u *1/2Io Ou MOSI OAOa EaEe MISO EaEe OAOa SCK OAOa EaEe /SS OAOa EaEe
/SS Oy1/2A|AU SPI AaOAIO/uE SPCR A MSTR OAI
OAEOO3/4o/SS Oy1/2AA*1/2Io Eo/SS AaOAI Eao OoEOy1/2AEOOOAx/AEOIA I/O UoOIi SPI Ecu/SS AaOAIEaEe Oo/SS OeO IOOO SPI AOyx/ EoIIAaOAIO/u /SS IEaEe IaEeA-I Oo SPI OOAE AE/a1/2EIcAE1/21/2aEIIOOoIaO/u1/2xO1/4NOnIOu IAE*AOxUIaI SPI IIxn N-OOIAaeOo 1 Ecu SPCR A MSTR II 0 Oo SPI IOu MOSI I SCK IEaEe 2 Ecu SPSR A SPIF OAI CO SPI OIIE3/4OOI*A OoOIAyI1/2A1/2O OoE OU SPI O/uEOAOI*1/2E1/21/2oEy3/4Y*EIE /SS OEAUA-I OIAyIOeO1/4ia MSTR OAI Ecu1/4ia1/2 MSTR CaAa OAOeOAI MSTR OOaOOA1/2oEeO/uAE1/2 Ecu SPI AaOAIOu Oo/SS OOIEaEe /SS IIE SPI |AU1/4i MISO EIEaoOy 1/2AoAEaEuEIEaEe Ecu/SS I OoEuOIaOOy1/2A1/4IEaEe SPI 1/2OEOEIIEy3/4Y Ox OaAECEo/SS A- SPI A1/4-1/2I EcuOU*EIyIO/SS A- OoEy3/4YEaAiEIOI Ey3/4YE Ey3/4YAE1/2 SCK AIaI 1/4OOeEy3/4Y1/4aO 4 OOxeI CPHA I CPOL OOAExeIA*1/2E1/2 SPI Ey3/4YEan E1/21/4uI1/4 39 I 40 I1/4 43 I1/4 44 SPI OOAE1/4AaeAE/ SPCR BIT 7 6 $0D($2D) SPIE SPE SPI EanE1/2 SPI EanE1/2 CPHA=0 DORD=0 CPHA=1 DORD=0
5 DORD
4 MSTR
3 CPOL
2 CPHA
1 SPR1
0 SPR0
U30O30O
ATMEGA161
R/W R/W R/W A / 0 0 0 oE1/4O SPIE SPI OIEAU SPE SPI EAU DORD Ey3/4YIo DORD I 1 LSB IE*EI DORD I
R/W 0
R/W 0
R/W 0
R/W 0
R/W 0
0
MSB IE*EI
MSTR O/ONOn MSTR OAIENOnO/uAE1/2 *nOoIOu Ecu MSTR I 1 /SS IEaEe A-I Oo MSTR CaAa SPIF OAI OAOeOOAEeOA MSTR 1/2oEeO/uAE1/2 CPOL EOO1/4O CPOL OAIiA/xUIOIE SCK I CPHA EOOIaI I1/4uI1/4 43 I 44 SPR1 SPR0 SPI EOOEUAENOnI i 22 SCK IEOOAEAEO(R)1/4aAOI SPI2X SPR1 SPR0 0 0 0 0 0 1 0 1 0 0 1 1 1 0 0 1 0 1 1 1 0 1 1 1 SPI xI1/4AaeAE/ SPSR BIT 7 6 $0E($2E) SPIF WCOL R/W R/W A/ 0 0 oE1/4O I 5...1 Ao
SCK fCL /4 fCL /16 fCL /64 fCL /128 fCL /2 fCL /8 fCL /32 fCL /64
5 R 0
4 R 0
3 R 0
2 R 0
1 R 0
0 SPI2X R/W 0
SPIF SPI OIeO3/4 (R)*EI1/2aEoo SPIF OAI 1/4EEE/SS A-I x/IEaEeU 1/2oEeOIAyIo SPIF xO I oOEOOIyIEA SPSR 1/2o1/2OxAA SPDR AO SPIF CaAa WCOL Aoxe O3/4 OU SPI *EIOO SPI Ey3/4Y1/4AaeAE/ SPDR Ey3/4Y1/2OAI WCOL WCOL EOOIyIEA SPSR 1/2o1/2OxAA SPDR ACaAa SPI2X EEU OAIo SPI AEUE1/4O O fCL /4 Eox/IO/u Oo SPI AEAEEi CPU AEAEAOe EoIOu OAU
SPI Ey3/4Y1/4AaeAE/ SPDR BIT 7 6 $0F($2F) MSB R/W R/W A/ X X oE1/4O
5 R/W X
4 R/W X
3 R/W X
2 R/W X
1 R/W X
0 LSB R/W X
U31O31O
ATMEGA161
UARTs
ATMEGA161 OA1/2oEEIOAOi1/2EO*AE/ AEaO/OIOaI l IOAE*EuAE/EOOuEuIAIOAE bps l OUIEOOIAEOEEOOA1/2AIOAE l 8 o 9 IEy3/4Y l OeEuAE l yEU1/4ia l OiIo1/4ia l iIoAEE1/4I1/4ia l 3 oAAAOI *EI1/2aEo *EIEy3/4Y1/4AaeAE/O 1/2OEO1/2aEo l EEU AE1/2 UART Ey3/4Y*EI
I1/445 I UART *EIAE/AO-AiI1/4
I1/4 45 UART *EIAE/
Ny*EIAEy3/4YEe UART Ey3/4Y1/4AaeAE/ UDRn 1/2AEEy3/4Y*EI OUEcIACeoIA UDRn AEy 3/4Y1/2oEe*EIOAEI1/4AaeAE/ l EoCOoxO*uAIOION3/4-OAEoOAEI1/4AaeAE/ Oo UDRn AEy3/4YA1/4EIEeOAEI1/4AaeAE/ l EoCOoxO*uAIOIAOOAEoOAEI1/4AaeAE/ OoOE1/2IOIOAEoo UDRn AEy3/4Y AEIEeOAEI1/4AaeAE/ Ecu 10 11 IEO*AE/OAEI1/4AaeAE/IO UDRn OAEy3/4Y1/2EI1/2OAEI1/4AaeAE/ EE UDREn OAI iA/ UART EOO1/2OEOIAOoEy3/4Y Ey3/4YEIEeOAEI1/4AaeAE/AEo OAEI1/4AaeAE/A 0 I AEE1/4I xOCaAa oI 9 I 10 IOI OAI EcuNOnAE 9 IEy3/4YnE1/2 UART A CHR9n OAI Oo UCSRnB OA TXB8 1/2EI1/2OAEI1/4AaeAE/AI 9 UART ExIEOU TXDn Oy1/2AEIoAEE1/4I EoECEy3/4Y IIOUC Ecu UDRn AiOAEy3/4Y Oo UART aOUIOI*EIIeIOOxO1/4OOOEy3/4Y OU1/4OOOEy3/4YAIE UDREn OAI O OO1/2OAEy3/4YEe UDRn Ecu UDRn AOAEy3/4Y oCOIOIOON3/4-EaoOo bit A E Oo*EI1/2aEoeO3/4 TXCn OAI UCSRnB A TXENn EAU UART *EIAE/ TXENn I 0 E PD1 UART0 o PB3 UART1 EOAx/AEOI I/O U TXENn I 1 E UART EaoxOA1/2O1/2 PD1 UART0 o PB3 UART1 CAEEAEaIEao oU*1/2Io1/4AaeAE/AEeOA OxOaAEC PB3 x/IAAaE1/2I AE/AOoEaEe A1/2o|AUAUIEEIO Ey3/4Y1/2OEO
I1/446
UART 1/2OEOAE/
1/2OEOAE/ACEOO 16 OUIOAEAAEAEO RXDn Oy1/2A1/2oENu EcuOUEU1/2A|OUOIxI AEo1/4ia1/2IcAE1/2 OoEIIOaECAEE1/4IAIA1/2NO AEE1/4I1/4iaoAE1/4 1/4UENu 1 IU OI1/4ia1/2IcAE1/2AEI CPU aOUENu 8 9 I 10 O RXDn 1/2o 3 IAoENu EcuO A1/2ooEENuOI OoEIICAAECOoe1/4UAAEE1/4I OAEu MCU 1/2E1/4Ey
U32O32O
ATMEGA161
1 1/2 0 Ax Ecu1/4ia1/2AEOoOAAEE1/4I MCU 3/4IaE1/4ENuEy3/4Y Ey3/4YIA1/4iaINuECOUENu 8 9 I 10 A1/2oo 3 oIaIAOEIIECCIAO I1/4 47 EA/AEENuyI I1/4 47 ENu1/2OEO1/2AEy3/4Y
AOIA
IOI1/2oEe1/2OEOAE/E 3 oENuOOOeOOA1/2oOOEII *nOo UCSRnA OAO iIoeO3/4I FEn OAI OUA UDRn O(R)C OAO|A1/4ie FEn UIOIOOe*n 1/2OEO1/2AEy3/4Y1/41/2EIEe UDRn UCSRnA A RXCn OAI UDRn E 1/4EEIECA1/2oIiAiEI*OAeA1/4AaeAE/ OoOAOU*EI OoOAOU1/2OEO AE UDRn E *AIEA EC1/2OEO UDRn oOU UDRn E *AIEAEC*EI UDRn EcuEy3/4YnE1/2I 9 I Oo UCSRnB A RXB8n OUEy3/4YEI1/2 UDRn E1/4OOO1/2*EIOAEI1/4AaeAE/AI 9 EcuOUAE UDRn O(R)C UART OO1/2OEO1/2OoEy3/4Y Oo UCSRnB A ORn OAI OaiA/Ey3/4Y I*xOAE1/2 UDRn oEAE ORn OOO1/2 UDRn AE OoE EcuIOAEE1/2I oO CPU OOE1/2IOO OAO|AOUA UDRn EExIE1/4ia ORn eO3/4 Ecu RXEN I 0 Oo1/2OEOAE/x/ PD0 EOOOAx/AEOI I/O U oEo RXEN OAI Oo UART 1/2OEOAE/A1/2O1/2 PD0 o PB2 CAEEAEax/IEaEeoU*1/2Io1/4AaeAE/AEeOA EE PORTD0 Oe PORTB2 EOEEOONOnAUEIA-EC*nO PB2 UART1 OAx/AAaE1/2IAE/AOoEaEe OoE EcuOEOAAAaE1/2IAE/A UART1 3/4II*EOAAE UCSRnB A CHR9n I 1 E EO*AEy3/4YnE1/2I 9 I O*EIAU 9 IEC UCSRnB A TXB8n OOU UDRn O(R)CEeOA o1/2OEO1/2AU 9 IEC RXB8n |AiAE/INAE1/2
a|AiAE/INAE1/2EIOAEaoOuOeOoO/uO(R)1/4aAINOoOO*xO1/2UOAAOOoAA ExIE OoMCU ECNO*AAE/1/4 OaoIOA MCU 1/2EOO1/2OEOooAEy3/4Y oINO*A MCU
OooAOOa(c)Ey3/4Y O/u MCU A*EIAE1/2OeI 9 I OAI UCSRnB A CHR9n U 9 II 1 E iA/ EI*EIAxO1/2UIOO* *nOo iA/*EIAECEy3/4Y OuEOOx/OU 8 Io 9 IAE1/2 8 IAE1/2E EcuIOII 1 OoiA/1/2OEO1/2AECOO* *nOoIEy3/4Y 9 IAE1/2E IOIE1/4OOI 1 U 9 IOAAEECOO*ECEy3/4Y I 1 EiA/1/2OEO1/2AECOO* I 0 EiA/1/2OEO1/2AECEy3/4Y IAEoyIOAAEIOauIN 1 EuOAOu|OUauINAE1/2 OAI UCSRnA A MPCMn 2 O/u*EIOO*xO1/2U EuOAOu1/41/21/2OEO1/2IxO1/2U CO UCSRnA A RXCn OAI 3 OuAE UDRn OexO1/4AOO*1/2oE1/2I EcuIaI OoEuCay MPCMn OO1/2OEOooEy 3/4Y *nOo1/4IoEyIAOoOO*xO1/2U 4 1/2OEOOu1/2OOAEOIuINAE1/21/2OEOEy3/4Y ECEcu1/2OEOAE1/2I 8 I OEOUIOII 0 EuOOOU1/2OEO1/2Ey3/4YAIE OiIo FEn Oa1/2OAI OOUAEaEu MPCMn OOAIA MCU Oo1/4oOoAOEy3/4YxO1/2U uEuEIIx/ 5 xioOoxO1/2U*EIIeIo A/IO1/2U1/2
UART OOAE
UART0 Ey3/4Y1/4AaeAE/ UDR0 BIT 7 6 5 4
U33O33O
3
2
1
0
ATMEGA161
$0C($2C) MSB LSB R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O UART1 Ey3/4Y1/4AaeAE/ UDR1 BIT 7 6 5 4 3 2 1 0 $03($23) MSB LSB R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O UDRn E1/4EEIECA1/2oIiAiEI*OAeA1/4AaeAE/ OoOAOU*EI OoOAOU1/2OEO AE UDRn E *AIEAEC1/2OEO UDRn oOU UDRn E *AIEAEC*EI UDRn UART0 OOAEIxI1/4AaeAE/ UCSR0A BIT 7 6 5 $0B($2B) RXC0 TXC0 UDRE0 R R R A/ 0 0 1 oE1/4O UART0 OOAEIxI1/4AaeAE/ UCSR1A BIT 7 6 5 $0B($2B) RXC1 TXC1 UDRE1 R R R A/ 0 0 1 oE1/4O I 2 Ao
4 FE0 R 0 4 FE1 R 0
3 OR0 R 0 3 OR1 R 0
2 R 0 2 R 0
1 U2X0 R/W 0 1 U2X1 R/W 0
0 MPCM0 R/W 0 0 MPCM1 R/W 0
RXC0/1 UART 1/2OEO1/2aEo RXCn OAIiE3/41/2OEO1/2AEy3/4YON3/4-O1/2OEOOAEI1/4AaeAE/EI1/2 UDRn ECUEy3/4YEC*nOIo Ecu RXCIEn I 1 Oo RXCn OAIE1/2OyAE1/2OEO1/2aEoOI RXCn OUA UDRn ExOCa y EcuEOAOI*1/2E1/2 OoOIAyIOeAOI UDRn OOCay RXCn *nOoOI1/2aEooOOa Oy*OI TXC0/1 UART *EI1/2aEo TXCn OAIiE3/4Ey3/4YON3/4-O*EIOAEI1/4AaeAE/*EIoE CO UDRn OAOAAO*EIAEy3/4Y OUeEIAO|OAO OEOU*EIAE/OU*EIIeEy3/4YO(R)oOA1/4x1/21/2OEOAE1/2 EuOOOaoe O3/4IIOOOA Ecu TXCIEn ONOAI Oo TXCn OAI1/2Oy**EI1/2aEoOI 1/2oEeOIAyIo TXCn xOCaAa oOOAEOOOAEa 1 OOi1/2CaAaAAA UDREn UART Ey3/4Y1/4AaeAE/O Ey3/4YO UDRn EI1/2*EIOAEI1/4AaeAE/o UDREn OAI iA/*EIAE/ON3/4-x1/4A1/2OEOAA O*EIAEy3/4Y UDRIEn OAI OoOO UDREn I 1 UART *EI1/2aEoOI3/4IEOOO UDRn 1/2 I UDREn EcuAuOAOI*1/2E1/2*EIEy3/4Y OoOU UART Ey3/4Y1/4AaeAE/OOIAyIAiOe UDRn OOCay UDREn *nOoOI1/2Ao*Eu Io UDREn AoE1/4OI 1 iA/*EIAE/3/4I/ FE0/1 OiIo MCU 1/4ia1/2OiIo Ec 1/4ia1/2IOII 1/4ia1/2Ey3/4YIOII 1 E FEn I 0 E FEn OAI
OR0/1 yEU Ecu UDRn IA oAAEy3/4YOOON1/2oEeOAEI1/4AaeAE/ UDRn Ey3/4YOAEEeo ORn CaAa
U34O34O
Oo ORn OAI
ATMEGA161
U2X0/1 EEUAE1/2 OAIo UART AEUE1/2EAEOIAE1/2iO MPCM0/1 a|AiAE/INAE1/2 OuEyOO*xO1/2UEO|OAIEI NO*oOCayEIOO1/2OEOEy3/4Y
UART0 OOAEIxI1/4AaeAE/ UCSR0B BIT 7 6 5 4 3 2 1 0 $0A($2A) RXCIE TXCIE UDRIE RXEN0 TXEN0 CHR90 RXB80 TXB80 0 0 0 R/W R/W R/W R/W R/W R/W R W A/ 0 0 0 0 0 0 1 0 oE1/4O UART1 OOAEIxI1/4AaeAE/ UCSR1B BIT 7 6 5 4 3 2 1 0 $0A($2A) RXCIE TXCIE UDRIE RXEN1 TXEN1 CHR91 RXB81 TXB81 1 1 1 R/W R/W R/W R/W R/W R/W R W A/ 0 0 0 0 0 0 1 0 oE1/4O RXCIE0/1 1/2OEO1/2aEoOIEAU TXCIE0/1 *EI1/2aEoOIEAU UDRIE0/1 UART Ey3/4Y1/4AaeAE/OOIEAU RXEN0/1 1/2OEOEAU EAU UART 1/2OEO 1/2OEO1/2uO1/21/4OA TXC0/1 OR0/1 I FE0/1 I*OAI IEOAUION 3/4-OAIAeO3/4I TXEN0/1 *EIEAU TXEN0/1 CaAaAUA1/4OO*EIAE/ Ecu*EIAE/COyOU*EIA OOE1/2*EIIeIo *EIAE/AOaeOyOO CHR90/1 9 IxO*u OAIo MCU 1/21/2OEOI*EI9 IxO*u U 9 IxO*uAA /*OOE RXB80/TXB80 RXB81/TXB81 OOAE U 9 IxO*uEOAx/IOIoAEaeA1/4Ne RXB80/1 1/2OEOAU9 I 1/2OEO1/2AxO*uAU 9 I TXB80/1 *EIAU9 I *EIxO*uAU 9 I IOAEuEuAE/
IOAE1/4AEEaE1/2I
BAUD =
BAUD = IOAE fCK = 3/4OnEOOAEAE UBRR = UART IOAE1/4AaeAE/ EE1/2EOAOUEEUAE1/2 E1/2O
f CK 16(BURR + 1)
UBRRHI I UBRRn
AAUEY
0-4095
i 23 ooAEOUA(c)3/4OnIAIOAEOO|A UBRR AO
U35O35O
ATMEGA161
i 23
IOAE 2400 4800 9600 14400 19200 28800 38400 57600 76800 115200 IOAE
1MHz UBRR = 25 12 6 3 2 1 1 0 0 0
%Ioi 0.2 0.2 7.5 7.8 7.8 7.8 22.9 7.8 22.9 84.3 %Ioi 0.4 0.8 1.6 1.6 3.1 1.6 6.3 12.5 12.5 12.5 %Ioi 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
IAEAEIA UBRR AEeO 1.8432 2MHz %Ioi %Ioi MHz 47 0.0 51 0.2 23 11 7 5 3 2 1 1 0 3.6864 MHz 95 47 23 15 11 7 5 3 2 1 8MHz 207 161 51 34 25 16 12 8 6 3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 33.3 0.0 %Ioi 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %Ioi 0.2 0.2 0.2 0.8 0.2 2.1 0.2 3.7 7.5 7.8 25 12 8 6 3 2 1 1 0 4MHz 161 51 25 16 12 8 6 3 2 1 9.216M Hz 299 119 59 39 29 19 14 9 7 4 0.2 0.2 3.7 7.5 7.8 7.8 7.8 22.9 7.8 %Ioi 0.2 0.2 0.2 2.1 0.2 3.7 7.5 7.8 7.8 7.8 %Ioi 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 6.7 0.0
3.2768 MHz 2400 U B R R = 84 4800 42 9600 20 14400 13 19200 10 28800 6 38400 4 57600 3 76800 2 115200 1 7.3728 MHz 2400 U B R R = 191 4800 95 9600 47 14400 31 19200 23 28800 15 38400 11 57600 7 76800 5 115200 3
IOAE
UART0/1 IOAExO1/2U1/4AaeAE/ UBRRHI BIT 7 6 5 4 3 2 1 0 $20($40) MSB1 LSB1 MSB0 LSB0 R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O IOAE1/4AaeAE/I 12 I1/4AaeAE/ 4 IIOU UBRRHI UART0 Oe UART1 IiE1/4AaeAE/ 0 -- 3 EoOU UART0 4--7 EoOU UART1 UART0 IOAEIxO1/2U1/4AaeAE/ UBRR0 BIT 7 6 5 $09($29) MSB 4 3 2 1 0 LSB
U36O36O
ATMEGA161
R/W R/W R/W A / 0 0 0 oE1/4O UART1 IOAEIxO1/2U1/4AaeAE/ UBRR1 BIT 7 6 5 $00($20) MSB R/W R/W R/W A/ 0 0 0 oE1/4O EEUEa
R/W 0 4 R/W 0
R/W 0 3 R/W 0
R/W 0 2 R/W 0
R/W 0 1 R/W 0
R/W 0 0 LSB R/W 0
IyOAI UCSRnA A U2X 161 Ia(c)AEAiOo UART AE1/2OOOEiOA1/2oEEUIN 1/2OEO
AE/ACEOO 8 OUIOAEAAEAEO RXDn Oy1/2A1/2oENu EcuOUEU1/2A|OUOIxIAE o1/4ia1/2IcAE1/2 OoEIIOaECAEE1/4IAIA1/2NO AEE1/4I1/4iaoAE1/4 1/4UENu 1 IUOI 1/4ia1/2IcAE1/2AEI CPU aOUENu 4 5 I 6 O RXDn 1/2o 3 IAoENu EcuOA1/2oo EENuOI OoEIICAAECOoe1/4UAAEE1/4I OAEu MCU 1/2E1/4EyAOI A 1 1/2 0 Ax Ecu1/4ia1/2AEOoOAAEE1/4I MCU 3/4IaE1/4ENuEy3/4Y Ey3/4YIA1/4iaINuECOUENu 4 5 I 6 A1/2oo 3 oIaIAOEIIECCIAO I1/4 48 EA/AEENuyI I1/4 48 ENu1/2OEO1/2AEy3/4Y
IOAEuEuAE/
IOAE1/4AEEaE1/2I
BAUD = f CK 8( BURR + 1)
E1/2O
BAUD = IOAE fCK = 3/4OnEOOAEAE UBRR = UART IOAE1/4AaeAE/
UBRRHI I UBRRn
AAUEY
0-4095
i 24 ooAEOUA(c)3/4OnIAIOAEOO|A UBRR AO IOAE 2400 1MHz i 24 IAEAEIA UBRR AEeO 1.8432 2MHz %Ioi %Ioi %Ioi MHz 0.2 95 0.0 103 0.2 0.2 0.2 3.7 7.5 7.8 7.8 7.8 22.9 84.3 %Ioi 47 23 15 11 7 5 3 2 1 0 3.6864 MHz 0.0 0.0 0.0 0.0 0.0 0.0 0.0 33.3 0.0 0.0 %Ioi
U37O37O
UBRR = 51 4800 25 9600 12 14400 8 19200 6 28800 3 38400 2 57600 1 76800 1 115200 0 230400 IOAE 3.2768 MHz
51 25 16 12 8 6 3 2 1 0 4MHz
0.2 0.2 2.1 0.2 3.7 7.5 7.8 7.8 7.8 84.3 %Ioi
ATMEGA161
MHz UBRR = 170 4800 84 9600 42 14400 27 19200 20 28800 13 38400 10 57600 6 76800 4 115200 3 230400 1 460800 0 912600 2400 IOAE 7.3728 MHz 2400 U B R R = 383 4800 191 9600 95 14400 63 19200 47 28800 31 38400 23 57600 15 76800 11 115200 7 230400 3 460800 1 912600 0
0.2 0.4 0.8 1.6 1.6 1.6 3.1 1.6 6.2 12.5 12.5 12.5 %Ioi 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
MHz 191 95 47 31 23 15 11 7 5 3 1 0 8MHz 416 207 103 68 51 34 25 16 12 8 3 1 0
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 %Ioi 0.1 0.2 0.2 0.6 0.2 0.8 0.2 2.1 0.2 3.7 7.8 7.8 7.8
207 103 51 34 25 16 12 8 6 3 1 0 0 9.216M Hz 479 239 119 79 59 39 29 19 14 9 4 2 0
0.2 0.2 0.2 0.8 0.2 2.1 0.2 3.7 7.5 7.8 7.8 7.8 84.3 %Ioi 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 20.0 20.0
AAaE1/2IAE/
AAaE1/2IAE/E1/2IOyEaEeE PB2 AIN0
IEaEeE PB3 AIN1 AO Ecu P B2 AIN0 AcNOU PB3 AIN1 AO E1/2IAE/AEao ACO 1/2OAI EEaoEOAA*AAaE1/2IAE/ OI EIEyNO IA1/2NOocAE1/2a OEOO* T/C1 AEaEex1/2|AU AEaoI1/4EcI1/4 49 Eu E3/4 I1/4 49 AAaE1/2IAE/oI1/4
AAaE1/2IAE/OOAEIxI1/4AaeAE/ACSR BIT 7 6 5 4 3 2 1 0 $08($28) ACD AINGB ACO ACI ACIE ACIC ACIS1 ACIS0 R/W R R R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O ACD AAaE1/2IAE/1/2uO ACD I 1 EAAaE1/2IAE/AcO1/2CI EOOOUEIIEoOAEaOAIOOOOAAaE1/2IAE/ OaNuEOO1/4oEUAE/1/4A|A Aa ACD EOxOa1/2uOAAaE1/2IAE/AOI *nOoOEAUOy* OOAOI
U38O38O
ATMEGA161
AINBG AAaE1/2IAE/AUIux1/4ONOn OAIoAU 1.22 0.05V AUIux1/4OEuEaEeU1/2AA1/2O1/2 AIN0 *nOo AOyEaEeE ACO AAaE1/2IAE/Eao ACO OeE1/2IAE/AEaoO1/2OIaA
PB2 A1/2O1/2E1/2IAE/
ACI AAaE1/2IAE/OIeO3/4I E1/2IAE/Eao*OIE ACI 1/2OAI OI*1/2E1/2OE ACIS1 I ACIS0 3/4o Ecu ACI I I 1/4 I 1 Oo CPU OE1/2IAE/OIAyI 1/2oEeOIAyIo ACI O1/4CaAa EIa ACI O EOOIyOEI 1 Ai1/2CaAaAAA OxOaAEC Ecu ACSR AAiO(c)I SBI o CBI OAiAE ACI OaCaAa ACIE AAaE1/2IAE/OIEAU ACIE I 1 E E1/2IAE/OIEAU ACIC AAaE1/2IAE/EaEex1/2EAU ACIC I 1 E T/C1 AEaEex1/2|AUOEE1/2IAE/OI* EE E1/2IAE/AEaoOe T/C1 AEaEex1/2CEO1/2OIaA T/C1 AEaEex1/2OeEuOOOAEINONOnEOEEEOA Ecu ACIC I 0 OoAAaE1/2IAE/Oe T/C1 AOOA IAEEAUE1/2IAE/CyA T/C1 EaEex1/2OI TICIE1 OeOAI ACIS1 ACIS0 AAaE1/2I AE/OIAE1/2NOn i 25 ACIS1/ACIS0 EeOA ACIS1 ACIS0 OIAE1/2 0 0 cAE1/2aOy*OI 0 1 Ao 1 0 ACO IA1/2NOOI 1 1 ACO EIEyNOOI xOa AaACIS1/ACIS0 EOxOa1/2uOAAaE1/2IAE/AOI *nOoOEAUOy*OOAOI AAaE1/2IAE/AEaEeOy1/2A PB2 I PB3 x/I UART1 A TXD1 1/4 RXD1 EOA Ecu UART1 |AUEAU Oo UART1 1/2OOAEaxOEiEeAa DDRB AO 1/4EEEAAaE1/2IAE/A|AUON3/4o OoE OUAaA1/2OO|AUIEEOA
AUc
Nux1/4
ATMEGA161 OOoAUux1/4cNO eAEOI 1.22V Eux1/4cNOOAOUcN1/4ia1/4AAaE 1/2IAE/ ux1/4cNEAUAA1/4AEoE1/4a
ux1/4cNOOoAEoE1/4a IAE1/2UE|A OOOUIAEoCeoIAux1/4cNAao TBD
1 BOD EAU EUEI BODEN aI 2 ux1/4OA1/2O1/2AAaE1/2IAE/ ACSR A AINBG OAI OoE Ecu BOD 1/2uO Oo AINBG OAIo OAeOEyux1/4cNAEo AaE1/2IAE/AEaEe ux1/4cNoAOIuA 10 A AcA/
EoAAUAuOAA
IaaeAE/1/2OU
AuOAIaaeAE/1/2OU OAEOOUx/aeAE/1/4aeAE/o LCD FLAS H OO1/4IaEe
U39O39O
ADC DAC
ATMEGA161
E
OOAE1/2OUA1/4AaeAE/O
MCUCR 1/4 EMCUCR
MCU OOAE1/4AaeAE/ MCUCR BIT 7 6 5 4 3 2 1 0 $35($55) SRE SRW10 SE SM1 ISC11 ISC10 ISC01 ISC00 R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O A(c)O MCU OOAE1/4AaeAE/ EMCUCR BIT 7 6 5 4 3 2 1 0 $36($56) SM0 SRL2 SRL1 SRL0 SRW01 SRW00 SRW11 ISC20 R/W R/W R/W R/W R/W R/W R/W R/W A/ 0 0 0 0 0 0 0 0 oE1/4O SRE IaaeAE/EAU SRE I 1 E MCU EOO*AIEIaaeAE/ AD0-7 A U A8-15 C U ALE /WR /RD Oy1/2AAAO COxOOOOCoAaOAEU*1/2Io1/4AaeAE/ Ecu SRE CaAa IaaeAE/I IaOUEOOx/AEOI I/O UEOA SRL2/1/0 EyxIOAaeIOAE MEGA161 EOOIIAIaaeAE/EeOAIAEyxI IaaeAE/EOOCo*OI 2 O 3 I SRL OAA1/2aeCo*OiIIAOAae 3/4IaI1/4ui 27 II1/4 50 SRL AEEOI 0 ui OuoIaaeCoIOoOuIa EEAEyxI1/2oOE SRW11 I SRW10 OOAE SRW11 SRW10 IaaeAE/OAaeEyxI SRW11/10 OAAOOAEIaaeAE/OAaeAEyxI 3/4IaI1/4ui 26 SRL IE 0 A1/2I1/2OOAEEuOIaaeAE/AEyxI SRW01 SRW00 IaaeAE/IOAaeEyxI SRW01/00 OAAOOAEIaaeAE/IOAaeAEyxI 3/4IaI1/4ui 26 SRL IE 0 A1/2I1/2OOAEEuOIaaeAE/AEyxI i 25 SRWn1 0 0 1 1
n = 0 o 1 CeII1/4
Oa
Oa
EyxI
SRWn0 0 1 0 1
EyxI IEyxI A/EEyOoEOO A/EEyoEOO A/EEyoEOO
EaoAOO*EEyOoEOO
51-54 OOnE1/2oO1/2AI SRL1 0 0 1 1 0 0 i 27 OAaeIOAE SRL0 0 IOAae OAae 1 IOAae OAae 0 IOAae OAae 1 IOAae OAae 0 IOAae OAae 1 IOAae OAae
U40O40O
SRL2 0 0 0 0 1 1
O Aae I OAE = N/A = $0460 - $FFFF = $0460 - $1FFF = $2000 - $FFFF = $0460 - $4FFF = $4000 - $FFFF = $0460 - $5FFF = $6000 - $FFFF = $0460 - $7FFF = $8000 - $FFFF = $0460 - $9FFF = $A000 - $FFFF
ATMEGA161
1 1
1 1
0 1
IOAae OAae IOAae OAae
= $0460 - $BFFF = $C000 - $FFFF = $0460 - $DFFF = $E000 - $FFFF
I1/4 50 I1/4 51 xOa
oOAaeNOnAIaaeAE/ SRWn1 = 0 SRWn0 = 0
AOEyxIAIaEy3/4YaeAE/OUAEU
n = 1 o 0 IOU T4 A ALE 1/2oIAOoOAi*AIE RAM AU/Ia EAoIO ALE oIOo Ey3/4YIOO*xU
IAaOU T4 Aa
I1/4 52 xOa
n = 1 o 0
SRWn1 = 0 SRWn0 = 1 EAIaEy3/4YaeAE/OUAEU
IOU T5 A ALE 1/2oIAOoOAi*AIE RAM IAaOU T5 Aa
AU/Ia
EAoIO
ALE oIOo
Ey3/4YIOO*xU
I1/4 53 xOa
n = 1 o 0
SRWn1 = 1
SRWn0 = 0 EAIaEy3/4YaeAE/OUAEU
IOU T6 A ALE 1/2oIAOoOAi*AIE RAM IAaOU T6 Aa
AU/Ia
EAoIO
ALE oIOo
Ey3/4YIOO*xU
I1/4 54 xOa
n = 1 o 0
SRWn1 = 1
SRWn0 = 1 EAIaEy3/4YaeAE/OUAEU
IOU T7 A ALE 1/2oIAOoOAi*AIE RAM IAaOU T7 Aa EOAIaaeAE/1/2OU
AU/Ia
EAoIO
ALE oIOo
Ey3/4YIOO*xU
aeAE/1/2OUuA
l A U IxO1/2UOO*OeEy3/4YxUI l C U xO1/2UOO*xUI l ALE OO*EoaeAA l /RD I/WR A/AA IaaeAE/EAUIy MCUCR A SRE IEe SRE OAIo A UAEUAaOA1/2xOAa Eo SRE I 0 OoIaaeAE/1/2uO IaO|EUOAx/AEOI I/O U ALE OaIIE A UAEy3/4YIOAOO* OUEy3/4YEayIO ALE OII /RD I/WR 1/2oOU*AIEIaaeAE/EO IaaeAE/EAUo *AIEAUaeAE/EOU ALE Oy1/2AEAUoIOIAoa ECOU*AIEIaae AE/AyIO ALE AAECIEA I1/4 55 I AVR OeIaaeAE/AA1/2OI1/4 EuOAEoaeAE/I 8 I G IENI I1/4 55 AVR OeIaaeAE/AA1/2O
U41O41O
ATMEGA161
I/O U EuOA I/O EU1/43/4OOaeOyAA-A-|AU AVR
1/2AA*1/2Io AO 1/2uO/EAU EIAOaOaIxAOA SBI o CBI OAiAaA(c)U EaIOaOAaAEaEuU1/2AA*1/2Io O 1/2uO/EAU EI
A U
A UEC 8 IEIo I/O U A UO 3 o I/O OO* Ey3/4Y1/4AaeAE/ PORTA $1B $3B Ey3/4Y*1/2Io1/4AaeAE/ DDRA $1A $3A IEaEeOy1/2A PINA $19 $39 PORTA I DDRA EAE PINA OEA EuOAU1/2A1/4EOOANOnEIA-cxe Oy1/2AaAE/EOOIuEO 20mA AcA/ AUO1/2OCy LED U1/2AA-IE EcuEIA-cxeON3/4-1/4i OoOy1/2AaEaocA/ A UAU|AUEC*AIEIaaeAE/AOO*/Ey3/4YxUI A UEy3/4Y1/4AaeAE/ PORTA BIT 7 6 $1B($3B) PORTA7 R/W R/W A/ 0 0 oE1/4O A UEy3/4Y*1/2Io1/4AaeAE/ DDRA BIT 7 6 $1A($3A) DDA7 R/W R/W A/ 0 0 oE1/4O
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 PORTA0 R/W 0
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 DDA0 R/W 0
A UEaEeOy1/2AOO* PINA BIT 7 6 5 4 3 2 1 0 $19($39) PINA7 PINA0 R R R R R R R R A/ Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z oE1/4O PINA ECOo1/4AaeAE/ OaoOO*OAA*AIE A UAIiAiO AE PORTA E A1/2AEC A U EoaeAEy3/4Y oAE PINA E A1/2AECE(c)1/4OOUOy1/2AEIAA1/4-EyO
A UOAx/IOAEyxOI/O x/IIOAEyxOE I/O
A UA 8 oU1/2A3/4OIaIA|AU PAn IOA I/O Oy1/2A DDRA OA DDAn NOnOy1/2AA*1/2Io Ecu DDAn I 1 Eao1/2A Ecu DDAn I 0 Oo PAn IEaEe1/2A OUIAEU1/4a A UIEyIU DDAn 0 0 1 PORTAn 0 1 0 i 28 I/O EaEe EaEe Eao A UAAaOA EIAN Y N Oo PAn I
xEI EyI xe IaA-IEaEaocA/ IAEIi 0 Eao
U42O42O
ATMEGA161
1 n 7 6...0 Oy1/2AA
1
Eao
N
IAEIi 1 Eao
A UE3/4OaI1/4 I1/456 B U
B UEC 8 IEIo I/O U B UO 3 o I/O OO* Ey3/4Y1/4AaeAE/ PORTB $18 $38 Ey3/4Y*1/2Io1/4AaeAE/ DDRB $17 $37 IEaEeOy1/2A PINB $16 $36 PORTB I DDRB EAE PINB OEA EuOAU1/2A1/4EOOANOnEIA-cxe Oy1/2AaAE/EOOIuEO 20mA AcA/ AUO1/2OCy LED U1/2AA-IE EcuEIA-cxeON3/4-1/4i OoOy1/2AaEaocA/ B UAU|AUEcIAiEuE3/4 B UU|AU U1/2A U | AU PB0 OC0/T0 T/C0 AE1/2IEao/1/4AEEyAE/ 0 EaEe PB1 OC2/T1 T/C2 AE1/2IEao/1/4AEEyAE/ 1 EaEe PB2 RXD1 UART1 EaEe /AIN0 AAaE1/2IAE/OyEaEeE PB3 TXD1 UART1 Eao /AIN1 AAaE1/2IAE/EaEeE PB4 /SS SPI OuNOn PB5 MOSI SPI O/uEao/OuEaEe PB6 MISO SPI O/uEaEe/OuEao PB7 SCK (R)EOO EOA B UAU|AUE DDRB I PORTB OEeOAEOO|AO B UEy3/4Y1/4AaeAE/ PORTB BIT 7 6 $18($38) PORTB7 R/W R/W A/ 0 0 oE1/4O B UEy3/4Y*1/2Io1/4AaeAE/ DDRB BIT 7 6 $17($37) DDB7 R/W R/W A/ 0 0 oE1/4O i 30 A UE3/4OaI1/4 PA0-PA7
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 PORTB0 R/W 0
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 DDB0 R/W 0
B UEaEeOy1/2AOO* PINB BIT 7 6 5 4 3 2 1 0 $16($36) PINB7 PINB0 R R R R R R R R A/ Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z oE1/4O PINB ECOo1/4AaeAE/ OaoOO*OAA*AIE B UAIiAiO AE PORTB E A1/2AEC B U EoaeAEy3/4Y oAE PINB E A1/2AECE(c)1/4OOUOy1/2AEIAA1/4-EyO
U43O43O
ATMEGA161
B UOAx/IOAEyxOI/O x/IIOAEyxOE I/O
B UA 8 oU1/2A3/4OIaIA|AU PBn IOA I/O Oy1/2A DDRB OA DDBn NOnOy1/2AA*1/2Io Ecu DDBn I 1 Oo PBn IEa o1/2A Ecu DDBn I 0 Oo PBn IEaEe1/2A OUIAEU1/4a B UIEyIU i 31 B UAAaOA DDBn PORTBn I/O EIAxEI 0 0 N EaEe EyI xe 0 1 Y EaEe IaA-IEaEaocA/ 1 0 N Eao IAEIi 0 Eao 1 1 N Eao IAEIi 1 Eao n 7 6...0 Oy1/2AA
B UAU|AU
l SCK PB7 SPI AO/uEOOEao OuEOOEaEe AaOAIOuE EOy1/2AAaOAIEaEeoU DDB7 AO o SPI IO/uE SCK AAaOAOE PB7 I DDB7 OOAE MISO PB6 SPI AO/uEy3/4YEaEe OuEy3/4YEao AaOAIO/uE EOy1/2AAaOAIEaEeoU DDB6 AO o SPI IO/uE MISO AAaOAOE PB6 I DDB6 OOAE MOSI PB5 SPI AO/uEy3/4YEao OuEy3/4YEaEe AaOAIOuE EOy1/2AAaOAIEaEeoU DDB5 AO o SPI IO/uE MOSI AAaOAOE PB5 I DDB5 OOAE /SS PB4 OuNOnAA AaOAIOuE EOy1/2AAaOAIEaEeoU DDB4 AO /SS II1/21/4i SPI AaOAIO/uE EOy1/2AA*1/2IoOE DDB4 OOAE Ecu DDB4 I 1 OoEIA-EOEE OOOE PORTB4 OOAE TXD1/AIN1 PB3 AIN1 AAaE1/2IAE/EaEeE TXD1 UART1 AEy3/4Y*EIOy1/2A UART1 *EIAE/EAUE Oy1/2AxOAaOAIEao RXD1/AIN0 PB2 AIN0 AAaE1/2IAE/OyEaEeE RXD1 UART1 AEy3/4Y*EIOy1/2A UART1 *EIAE/EAUE Oy1/2AxOAaOAIEaEe Ecu eOEIA- OoeOAI PORTB2 OC2/T1 PB1 T1 T/C1 xo1/4AEEyAE/EA1/4AEEyEA1/4EaEe OC2 T/C2 AEaoE1/2IAEAaEaoAA EaoE1/2IAEAa|AUEAUo EOy1/2AeAaOAIEa o OC0/T0 PB0 T0 T/C0 xo1/4AEEyAE/EA1/4AEEyEA1/4EaEe OC0 T/C0 AEaoE1/2IAEAaEaoAA EaoE1/2IAEAa|AUEAUo EOy1/2AeAaOAIEa o
l
l
l
l
l
l
l
B UE3/4OaI1/4
U44O44O
ATMEGA161
I1/4 57
B UE3/4OaI1/4
PB0 I PB1
I1/4 58
B UE3/4OaI1/4
PB2
I1/4 59
B UE3/4OaI1/4
PB3
I1/4 60
B UE3/4OaI1/4
PB4
I1/4 61
B UE3/4OaI1/4
PB5
I1/4 62
B UE3/4OaI1/4
PB6
I1/4 63
B UE3/4OaI1/4
PB7
C U
C UEC 8 IEIo I/O U C UO 3 o I/O OO* Ey3/4Y1/4AaeAE/ PORTC $15 $35 Ey3/4Y*1/2Io1/4AaeAE/ DDRC $14 $34 IEaEeOy1/2A PINC $13 $33 PORTC I DDRC EAE PINC OEA EuOAU1/2A1/4EOOANOnEIA-cxe Oy1/2AaAE/EOOIuEO 20mA AcA/ AUO1/2OCy LED U1/2AA-IE EcuEIA-cxeON3/4-1/4i OoOy1/2AaEaocA/ C U3/4OOe*AIEIa SRAM IaOAU|AU EE C EOOAaOAIxO1/2UOO*Eao OaO| AUOE SRE OOAE C UEy3/4Y1/4AaeAE/ PORTC BIT 7 6 $15($35) PORTC7 R/W R/W A/ 0 0 oE1/4O C UEy3/4Y*1/2Io1/4AaeAE/ DDRC BIT 7 6 $14($34) DDC7 R/W R/W A/ 0 0 oE1/4O C UEaEeOy1/2AOO* PINC BIT 7 6 $13($33) PINC7
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 PORTC0 R/W 0
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 DDC0 R/W 0
5
4
3
2
1
0 PINC0
U45O45O
ATMEGA161
R R R R R R R R A / Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z oE1/4O PINC ECOo1/4AaeAE/ OaoOO*OAA*AIE C UAIiAiO AE PORTC E A1/2AEC C U EoaeAEy3/4Y oAE PINC E A1/2AECE(c)1/4OOUOy1/2AEIAA1/4-EyO
C UOAx/IOAEyxOI/O x/IIOAEyxOE I/O
C UA 8 oU1/2A3/4OIaIA|AU PCn IOA I/O Oy1/2A DDRC OA DDCn NOnOy1/2AA*1/2Io Ecu DDCn I 1 o1/2A Ecu DDCn I 0 Oo PCn IEaEe1/2A OUIAEU1/4a C UIEyIU DDCn 0 0 1 1
n 7 6...0 Oy1/2AA I1/4 64
Oo PCn IEa
PORTCn 0 1 0 1
i 23 I/O EaEe EaEe Eao Eao
C UAAaOA EIAN Y N N PC0-PC7
xEI EyI xe IaA-IEaEaocA/ IAEIi 0 Eao IAEIi 1 Eao
C UE3/4OaI1/4
D U
D UEC 8 IEIo I/O U 3/4OAUEIA-cxe D UO 3 o I/O OO* Ey3/4Y1/4AaeAE/ PORTD $12 $32 Ey3/4Y*1/2Io1/4AaeAE/ DDRD $11 $31 IEaEeOy1/2A PIND $10 $30 PORTD I DDRD EAE PIND OEA D UAOy1/2AaAE/EOOIuEO 20mA AcA/ AUO1/2OCy LED U1/2AA-IE EcuEI A-cxeON3/4-1/4i OoOy1/2AaEaocA/ D UAU|AUEcIAiEuE3/4 i 32 U1/2A PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 D UU|AU U|AU RXD0 UART0 1/2OEOOy1/2A TXD0 UART0 *EIOy1/2A INT0 IaOI 0 EaEe INT1 IaOI 1 EaEe TOSC1 PTC OnAE/ T/C2 TOSC2 PTC OnAE/ T/C2 /OC1A T/C1 EaoE1/2I A AEAaEao /WR /RD
D UEy3/4Y1/4AaeAE/ PORTD BIT 7 6 $12($32) PORTD7 R/W R/W A/ 0 0 oE1/4O D UEy3/4Y*1/2Io1/4AaeAE/ DDRD BIT 7 6
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 PORTD0 R/W 0
5
4
U46O46O
3
2
1
0
ATMEGA161
$11($31) A/ oE1/4O
DDD7 R/W 0
R/W 0
R/W 0
R/W 0
R/W 0
R/W 0
R/W 0
DDB0 R/W 0
D UEaEeOy1/2AOO* PIND BIT 7 6 5 4 3 2 1 0 $10($30) PIND7 PINB0 R R R R R R R R A/ Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z oE1/4O PIND ECOo1/4AaeAE/ OaoOO*OAA*AIE D UAIiAiO AE PORTD E A1/2AEC D U EoaeAEy3/4Y oAE PIND E A1/2AECE(c)1/4OOUOy1/2AEIAA1/4-EyO
D UOAx/IOAEyxOI/O
PDn IOA I/O Oy1/2A DDRD OA DDDn NOnOy1/2AA*1/2Io Ecu DDDn I 1 Eao1/2A Ecu DDDn I 0 Oo PDn IEaEe1/2A OUIAEU1/4a D UIEyIU DDDn 0 0 1 1
n 7,6...0 Oy1/2AA
Oo PDn I
PORTDn 0 1 0 1
i 34 I/O EaEe EaEe Eao Eao
D UAAaOA EIAN Y N N
xEI EyI xe IaA-IEaEaocA/ IAEIi 0 Eao IAEIi 1 Eao
D UAU|AU
l l l /RD PD7 /WR PD6 OC1A PD5 PD5 EOOOAx/ T/C1 E1/2IAEAaAIaEao EE PD5 OeAaOAIEao OC1A OEC PWM AEaoOy1/2A INT1 PD3 IaOIO 1 INT0 PB2 IaOIO 0 TXD0 PD1 *EIEy3/4YOy1/2A *EIAE/EAUo Oy1/2AxOAaOAIEaooU DDR1 RXD0 PD0 1/2OEOEy3/4YOy1/2A 1/2OEOAE/EAUo Oy1/2AxOAaOAIEaEeoU DDR0 EoEE PORTD0 I 1 OoEIA-O
l l l l
D UE3/4OaI1/4 I1/4 65 D UE3/4OaI1/4 PD0
I1/4 66
D UE3/4OaI1/4
PD1
U47O47O
ATMEGA161
I1/4 67
D UE3/4OaI1/4
PD2/3
I1/4 68
D UE3/4OaI1/4
PD4
I1/4 69
D UE3/4OaI1/4
PD5
I1/4 70
D UE3/4OaI1/4
PD6
I1/4 71
D UE3/4OaI1/4
PD7
E U
E UEC 3 IEIo I/O U 3/4OAUEIA-cxe E UO 3 o I/O OO* Ey3/4Y1/4AaeAE/ PORTE $07 $27 Ey3/4Y*1/2Io1/4AaeAE/ DDRE $06 $26 IEaEeOy1/2A PINE $05 $25 PORTE I DDRE EAE PINE OEA E UAOy1/2AaAE/EOOIuEO 20mA AcA/ AUO1/2OCy LED U1/2AA-IE EcuEI A-cxeON3/4-1/4i OoOy1/2AaEaocA/ E UAU|AUEcIAiEuE3/4 i 34 U1/2A PE0 PE1 PE2 E UEy3/4Y1/4AaeAE/ PORTE BIT 7 6 $07($27) R R A/ 0 0 oE1/4O E UEy3/4Y*1/2Io1/4AaeAE/ DDRE BIT 7 6 $06($26) R R A/ 0 0 oE1/4O E UEaEeOy1/2AOO* PINE BIT 7 6 $05($25) E UU|AU IaOI 2 EaEe U|AU ICP T/C1 EaEex1/2Oy1/2A /INT2 OC1B T/C1 EaoE1/2IAEAa B ALE
5 R 0
4 R 0
3 R 0
2 PORTE2 R/W 0
1 R/W 0
0 PORTE0 R/W 0
5 R 0
4 R 0
3 R 0
2 DDE2 R/W 0
1 R/W 0
0 DDE0 R/W 0
5
4
3
2 PINE2
1
0 PINE0
U48O48O
ATMEGA161
R R R R R R R R A / Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z Hi-Z oE1/4O PINE ECOo1/4AaeAE/ OaoOO*OAA*AIE E UAIiAiO AE PORTE E A1/2AEC E U EoaeAEy3/4Y oAE PINE E A1/2AECE(c)1/4OOUOy1/2AEIAA1/4-EyO
E UOAx/IOAEyxOI/O
PEn IOA I/O Oy1/2A DDRE OA DDEn NOnOy1/2AA*1/2Io Ecu DDEn I 1 o1/2A Ecu DDEn I 0 Oo PEn IEaEe1/2A OUIAEU1/4a E UIEyIU DDEn PORTEn 0 0 0 1 1 0 1 1 n 7,6...0 Oy1/2AA i 35 I/O EaEe EaEe Eao Eao E UAAaOA EIAN Y N N Oo PEn IEa
xEI EyI xe IaA-IEaEaocA/ IAEIi 0 Eao IAEIi 1 Eao
E UAU|AU
l OC1B PE2 PE2 EOOOAx/ T/C1 E1/2IAEAaBAIaEao EEPE2 OeAaOAIEao OC1BOEC PWM AEaoOy1/2A ALE PE1 ICP/INT2 PE0 ICP T/C1 AEaEex1/2Oy1/2A INT2 IaOIAAEaEe
l l
E UE3/4OaI1/4 I1/4 72 E UE3/4OaI1/4 PE0
I1/4 73
E UE3/4OaI1/4
PE1
I1/4 74
E UE3/4OaI1/4
PE2
aI
BOOT 1/4OOOAE/
A TMEGA161 OOIoxOIO1/4OOO A TMEGA161 A FLASH aeCo*OIA1/2o*O 1 O|OAuAeCo $0000 - $1DFF
U49O49O
ATMEGA161
2
BOOT Co
$1E00 - $1FFF I1/4 75 aeCo
BOOT 1/4OOOIoEOOAuOAEIIEOAAEy3/4Y1/2OU Ec UART AEIIouAe 1/2uAeEe FLASH Io FLASH OOOCo*O AO 128 xO1/2U BOOT CoO1/43/4YO$1E00 - $1FFF A 8 oO SPM Store Program Memory OAiEOO*AIEOuo FLASH Co ECOAUOU BOOT *IAUO EcuOAOA BOOT |AU OoO|OAuAeEO3/4YE FLASH BOOT Co3/4OA1/2oAAA EoI OO*1/2aOANOnI1/4A OAEOONOn l Ouo 1/2uO BOOT uAIo FLASH l 1/2o IoxOEiAaOUxO1/4uA BOOT l 1/2oO|OAIoAaOU BOOT IouA l OEiEi1/4uAOuo FLASH Co 3/4IaCeI1/4ui 36/37 BLB0 AE1/2 1 2 3 4 x 1 uiIaI i 36 BOOT EoI 0 AE1/2 O|OAuAeCo BLB01 BLB02 1 1 SPM LPM E*AIEO|OAuAeCo $0000 - $1DFF 0 1 SPM AU*AIEO|OAuAeCo $0000 - $1DFF 0 0 SPM LPM AU*AIEO|OAuAeCo $0000 - $1DFF 1 0 LPM AU*AIEO|OAuAeCo $0000 - $1DFF
BLB1 AE1/2 1 2 3 4 x 1 uiIaI
i 37 BLB11 1 0 0 1
BOOT EoI 1 AE1/2 BOOT uAeCo BLB12 1 SPM LPM E*AIE BOOT Co $1E00 - $1FFF 1 SPM AU*AIE BOOT Co $1E00 - $1FFF 0 SPM LPM AU*AIE BOOT Co $1E00 - $1FFF 0 LPM AU*AIE BOOT Co $1E00 - $1FFF
1/2oEe BOOT 1/4OOOIo
IyIoxoOO|OAIo/OA1/4E1/2oEe IoCo Oa(c)Io1/4EOO1/4(R)OE UART o SPI 1/2OEO BOOT
1/2AAuAi* EIa OEOO1/2 BOOTRST EUEIaI EAEIcoO1/2OIox1/2$1E00 O xOa MCU xO1/4AUAaEUEI O3/4IECE O(c) BOOTRST aI MCU AIIoA 3/4IOOOIo BOOT 1/4OOOIo y*CIy(R)/aIAAa BOOTRST OE LB1 Eo Ec u LB1 aI OoOOAEAyoAEOOAa BOOTRST i 38 BOOTRST 1 0 x
1 uiIaI
BOOT IEUEI BOOTRST I O O* IIoA = O|OAI OO*$0000 IIoA = BOOT I OO*$1E00
U50O50O
ATMEGA161
BOOT 1/4OOOAE/A|AU
BOOT 1/4OOOCoAIoEOOA/Ouo FLASH Co uA BOOT IoxOEi OoE OAEOOu AO|OAIouAeOO1/4OEi1/4uAA BOOT Io3/4Ei OxOaAEC Ecu BOOT EoI 11 IaI OoO BOOT IoA3/4-OaAUx/1/2AEAEEi1/4uA OoE EcueOuA BOOT IoxOEi xiA1/2 BOOT EoI 11 aI
FLASH xOaI FLASH OOOII
OIUx/IeEOO aICIEOAy IOAEoI 2 OOAEOE SPM OAiOy*AaIUx/ INu A/EoI 1 OOOAEOE LPM/SPM Oy*AUx/ IoaeAE/OAUOOOOOuA oECOOxOII OOO 128 xO1/2U 64 oxO aIy IuA ExIEOOAy EoOO SPM OAiOIIiaOoxO1/2AUEOaCo xioOa IOAi Ecu1/2oeOuAOOOAO*O OoOUAyCIEO1/2IeAaAAUEYae1/2AEaEu O*1/2 EcAUEOaCo EoOO AUEOaCoEOOEaeuEo*AIE OUAyIaIyI O CPU IO EeOA SPM A BOOT 1/4OOOAE/EoI EeOA BOOT 1/4OOOAE/EoIExIEO1/2IaO|AEy3/4Y1/2 R0 1001 1/2 SPMCR EoOU SPMCR Ux/oA 4 oEOOO(R)AUO SPM IOEOO*AIEAEoIEC BOOT EoI OAA*AOO|OA IouAeI BOOT CoIoA 3/4IaI1/4ui 36 I 37 BIT 7 6 5 4 3 2 1 0 $05($25) BLB12 BLB11 BLB02 BLB01 Ecu R0 AI 5-2 I 0 CO SPMCR A SPMEN 1/4 BLBSET OAI Oo SPMCR Ux/oA 4 oE OOO(R)AUOA SPM OAi1/2O 4 oEoI1/2oaI OAy 1/2oOAyE ExIEO1/2OO*Ee Z 1/4AaeAE/ Eo 0011 1/2 SPMCR OU SPMCR Ux/ oA 4 oEOOO(R)AUO SPM R1 I R0 OAEy3/4YOIiOAy OOO*OeEe Z13:Z7 AEaEuIOIiOAy IiaAUEaCo ExIEOOU Z 1/4AaeAE/OEeOAOO* OU R1:R0 AiEeEy3/4Y Eo 0001 1/2 SPMCR OU SPMCR Ux/oA 4 oEOOO(R)AUO SPM Z6:Z1 OAOUNO*IOUAUEaCoAEy3/4Y o Z13:Z7 Oe OIoOEeAOAOO* OEe ExIEOU Z 1/4AaeAE/OEeOAOO* Eo 0101 1/2 SPMCR OU SPMCR Ux/oA 4 oEOOO(R) AUO SPM R1 I R0 OAEy3/4YOIiO OOO*OeEe Z13:Z7 Z6:Z0 OOO I 0 OOOOOyE* OUxOaIyIONO*
FLASH
Z 1/4AaeAE/OAOU SPM AuAiANO* BIT 7 6 5 4 3 2 1 0 $1F($1F) Z15 Z14 Z13 Z12 Z11 Z10 Z9 Z8 $1E($1E) Z7 Z6 Z5 Z4 Z3 Z2 Z1 Z0 Z15:Z14 AOOA Z13:Z7 ON OAy1/4O Z6:Z1 IiaAUEaCoEOAOUxON OUOEOeI 0 Z0 OAOU SPM EOeI 0 OU LPM OAiAix/IxO1/2UNE e Z 1/4AaeAE/AUx/ECEeOA BOOT 1/4OOOAE/EoIUx/ EE Z 1/4AaeAE/OUx/AOEIIOIi
U51O51O
ATMEGA161
OAyIOECAANO*A
EuOOOAO1/2OO*aiAE
LPM OAiOEOA Z 1/4AaeAE/ OEOUEuECOoxO1/2UOoxO1/2UNO*A OoEOAEIAE Z0 SPM EAUE1/4aOAA3/4-OaOO SPM OAi EuOAUx/1/4ExIEEeOA I/O I EoOU 4 oEOOO(R)AUO SPM OOAE SPM A I/O 1/4AaeAE/I aeIoaeAE/OOAE1/4AaeAE/ BIT 7 $37($57) R A/ 0 oE1/4O I 7...4 Ao 6 R 0 5 R 0
SPMCR
4 R 0 3 BLBSET R/W 0 2 PGWRT R/W 0 1 PGERS R/W 0 0 SPMEN R/W 0
BLBSET OAI BOOT EoI EoEIOe SPMEN OAEOAI OoOUAEao 4 oEOOAUOASPM 1/2 R0 AEy3/4YEe1/2 BOOT EoI R1 1/4 Z 1/4AaeAE/AEy3/4YIOeEIiUx/ EoIAaIeEo oOOU 4 oEOOAU SPM IO BLBSET xOCaAa EoIAayIO CPU IO OOAEAyUx/AEOOCay EoI BLBSET I SPMEN OAIo 4 oEOOAUOA LPM 1/2NEoIoEUEI OAAOU Z 1/4AaeAE/ A Z0 A1/2AA1/4AaeAE/ PGWRT O EoEIOe SPMEN OAEOAI OoOUAEao 4 oEOOAUOA SPM 1/2NAUEaCoAEy3/4YEe 1/2 FLASH OOO*IOU Z 1/4AaeAE/AI OIeEo oOOU 4 oEOOAU SPM IO PGWRT xOCaAa OyIO CPU IO PGERS OAy EoEIOe SPMEN OAEOAI OoOUAEao 4 oEOOAUOA SPM 1/2AyOO OOO*IOU Z 1/4AaeAE/AI OAyIeEo oOOU 4 oEOOAU SPM IO PGERS xOCaAa OAy yIO CPU IO SPMEN aeIoaeAE/EAU EAUAEao 4 oEOOAUOA SPM EcuOe BLBSET PGWRT o PGERS AAEaOO(R)OOAEOA I Oo SPM 1/2OIOEaAuAi Ecu1/2oOAI SPMEN OoAEaoA SPM OAi1/2oN R1:R0 AO ae1/2OE Z 1/4AaeAE/OAAUEaCo SPM IeEo oOOU 4 oEOOAU SPM IO SPMEN xOCaAa EcuOUI 4 IEey 1001 0101 0011 0001 O(R)IaAO oECOUEIOIONOA IoOUO SPMCR Ux/1/2I
EEPROM xeO SPMCR
EuOOOU SPMCR O(R)CxiA E EEWE I 0 oOUUx/ SPMCR
EEPROM 1/2xeOO FLASH AaIOO1/4AEUEIIEoI
IE1/4ie EECR A EEWE I OUEi1/4AiAEUEIIEoI
AEoIeOA 1/4AaeAE/I$0001 EZ
OAI BLBSET I SPMEN EoOU 3 oEOOAUO LMP 1/2EoIAAUEY1/2AA1/4AaeAE/ AEEoIIeEo oOOU 3/4 oEOOAU LPM/SPM IO BLBSET I SPMEN xOCaAa BLBSET I SPMEN CaAao LPM OIIOAI3/4 BIT 7 6 5 4 3 2 1 0 BLB12 BLB11 BLB02 BLB01 LB2 LB1 AEUEIAEa*OeAEoIAAaEAE EC Z 1/4AaeAE/1/4OOOAEC$0001 oEC$0000
U52O52O
ATMEGA161
BIT
7 -
6
BOOTRST
5
SPIEN
4
BODLEVEL
3
BODEN
2
CKSEL[2]
1
CKSEL[1]
0
CKSEL[0]
ONaIAIAEaOI
0
IoIEy3/4YEoI ATMEGA161 3/4O 6 oEoI Eci 39 EuE3/4 EoIOAUIyAEAyAuAiAyI 1 i 39 EoAE1/2 ae AE/ Eo I Aa I LB1 LB2 LB AE1/2 1 1 1 IEo|AU 2 0 1 1/2uOaI 1 3 0 0 1/2uONe FLASH I EEPROM 1 BLB01 BLB02 BLB0 AE1/2 1 1 1 SPM LPM E*AIEO|OAuAeCo $0000 - $1DFF 2 0 1 SPM AU*AIEO|OAuAeCo $0000 - $1DFF 3 0 0 SPM LPM AU*AIEO|OAuAeCo $0000 - $1DFF 4 1 0 LPM AU*AIEO|OAuAeCo $0000 - $1DFF BLB11 BLB12 BLB1 AE1/2 1 1 1 SPM LPM E*AIE BOOT Co $1E00 - $1FFF 2 0 1 SPM AU*AIE BOOT Co $1E00 - $1FFF 3 0 0 SPM LPM AU*AIE BOOT Co $1E00 - $1FFF 4 1 0 LPM AU*AIE BOOT Co $1E00 - $1FFF xOa 1 OUaIAE1/2IA EUEIaIO1/2uO OIEaIEUEI EoaIEoI
EUEI
A TMEGA161 O 7 oEUEI BOOTRST SPIEN BODLEVEL BODEN I CKSEL[2:0] l BOOTRST aI 0 oIIoAEeOAI$1E00 BOOT 1/4OOOAE/AEeUOO* EoIaI 1 OoIIoAEeOAI$0000 l SPIEN aI I 0 o (R)IAOOIoEAU EEOI 0 (R)IAOOAE1/2AU*AIE OaOI l BODLEVEL NOnoc1/4iacAE1/21/4AaAEoE1/4a EEOI 1 l BODEN aI 0 o oc1/4iaEAU l CKSEL2...0 INOENOn EEOI 011 3/4AEAyAuAiOIiEUEI OIEaIEUEI EoaIEoI e
EuOAtmel I|AiAE/1/4O 3 xO1/2UAe A
OAOOEAE/1/4 EuAeOU(R)oAE1/2IA1/4E
OO*AIE AEaIOAI OOU ATMEGA161 1 $000 $1E iA/EC Atmel EuuA 2 $001 $94 16K xO1/2UA FLASH 3 $002 $01 $01 OO*I$94 E AE/1/4I A TMEGA161 aI
FLASH I EEPROM
ATMEGA161 3/4O 16K xO1/2UAAEAUEaI FLASH I 512 xO1/2UA EEPROM OUoEON3/4- AyI 1 AE/1/4OO+12V NaIIIN(R)aI +12V OOAAEAUNaI
U53O53O
ATMEGA161
aOA/IOAcA/A/y
ATMEGA161 A FLASH 1/2aI 128 xO1/2U/O 128 O aI FLASH E Ey3/4YExIEaeOUO aCoAi OUA1/2OOaIAE1/2IA EEPROM ECOOxO1/2UAIE1/2EeA AEAU1/4EAExOAIxOEy|AU OUaIE OxOacOcNOAuxaOCo IA ATMEGA161L ATMEGA161 aI i 40 aIcOcN (R)aI 2.7V - 5.5V 4.0V - 5.5V aI 4.5V - 5.5V 4.5V - 5.5V
3/4 1/2U1/2eEUEcIOUAE1/2IAOEEPROM FLASH
AAAuAu I1/4 76
EUEIIEoI1/2oaI
aI
ATMEGA161 AA(c)U1/2AOU3/41/2U1/2OOaIAAAAAuAu XA1/XA0 3/4oAE XTAL1 Oy 1/2AEIoIOOyAoaEO1/2oAx/ Cy/WE o/OE E O1/4OOOAAuAi aIEAAAAuAE RDY/BSY /OE /WR BS1 XA0 XA1 PAGEL BS2 DATA U1/2A PD1 PD2 PD3 PD4 PD5 PD6 PD7 PA0 PB0-7 i 41 I/O O I I I I I I I I/O U1/2AAuAu |AU 0 AE/1/4A| 1 EOO1/2OEUAAuAi EaoEAU IcAE1/2 Aoa IcAE1/2 xO1/2UNOn 1 0 IxO1/2U 1 1/4ui 42 1/4ui 42 IoaeAE/O1/4OOO xO1/2UNOn 2 xUIIcAE1/2 EIoEy3/4YxUI /OE IIEEao
xO1/2U
XA1 0 0 1 1
XA0 0 1 0 1
i 42 XA1 I XA0 aAe XTAL1 oOyAoaoAUx/ 1/4OOO FLASH o EEPROM AOO* BS1 3/4oECIOO*ECIIOO* 1/4OOOEy3/4Y BS1 3/4oECIOO*ECIIOO* 1/4OOOAuAi IUx/ i 43 AuAixO1/2U 1000 0000 0100 0000 0010 0000 0001 0000 0001 0001 0000 1000 AuAixO1/2UaAe OAAuAi 3/4AEAy EUEI EoI FLASH EEPROM Ae
U54O54O
ATMEGA161
0000 0100 0000 0010 0000 0011
AEUEIIEoI A FLASH A EEPROM
1/2oEeaIAE1/2 OOIA1/2OeEAE/1/41/2oEeaIAE1/2 1 i 40 OU VCC I GND O(R)1/4a1/4OEIcOcN 2 A-I/RESET I BS EyOAEU 500ns 3 o/RESET Oy1/2A1/4OEI 11.5~12.5V AcN EyOAEU 500ns 3/4AEAy EAuAiAyEuOA FLASH I EEPROM OO1/4EoI OU FLASH I EEPROM IeEAyO(R) C EoIaAy AyyIOIiEUEI AyAuAiOeOUO FLASH I EEPROM OO AaIO(R)CO 1/4OOO Ay AuAi 1 EeOA XA1 XA0 I 10 EAUAuAi1/4OOO 2 EeOA BS1 I 0 3 EeOA DATA I 1000 0000 AyAuAi 4 o/WE E(c)1/4OOoAoa RDY/BSY aI 5 Ey RDY/BSY a FLASH aI FLASH xeOI 128 xO1/2U/O xU 128 O Ey3/4YExIEaeOUOaCoAi A 1/4OOOAuAi 1 EeOA XA1 XA0 I 10 EAUAuAi1/4OOO 2 EeOA BS1 I 0 3 EeOA DATA I 0001 0000 FLASH AuAi 4 o XTAL1 OoOyAoa 1/4OOOAuAi B 1/4OOOIIOO* 1 EeOA XA1 XA0 I 00 EAUOO*1/4OOO 2 EeOA BS1 I 0 NOnOO*AIIxO1/2U 3 EeOA DATA = OO*AIIxO1/2U $00~$FF 4 o XTAL1 OoOyAoa 1/4OOOOO*AIIxO1/2U C 1/4OOOEy3/4YAIIxO1/2U 1 EeOA BS1 I 0 NOnEy3/4YAIIxO1/2U 2 EeOA XA1 XA0 I 01 EAUEy3/4Y1/4OOO 3 EeOA DATA = Ey3/4YAIIxO1/2U $00~$FF 5 o XTAL1 OoOyAoa 1/4OOOEy3/4YAIIxO1/2U D EoaeEy3/4YAIIxO1/2U OU PAGEL EIE(c)1/4OOoOyAoa I1/4uI1/4 77 E 1/4OOOEy3/4YAIxO1/2U 1 EeOA BS1 I 1 NOnEy3/4YAIxO1/2U 2 EeOA XA1 XA0 I 01 EAUEy3/4Y1/4OOO 3 EeOA DATA = Ey3/4YAIxO1/2U $00~$FF 4 o XTAL1 OoOyAoa 1/4OOOEy3/4YAIIxO1/2U
U55O55O
ATMEGA161
EoaeEy3/4YAIxO1/2U OU PAGEL EIE(c)1/4OOoOyAoa G OO 64 I B 1/2 F AyI OOIiAuOoOaCo NO*OoOAaeeO 7 I C 5 IOOO*IxO1/2UA1/2 1/2UA 2 I 7 6 H 1/4OOOIOO* 1 EeOA XA1 XA0 I 00 EAUOO*1/4OOO 2 EeOA BS1 I 1 NOnOO*AIxO1/2U 3 EeOA DATA = OO*AIxO1/2U $00 - $7F/$FF 4 o XTAL1 OoOyAoa 1/4OOOOO*AIxO1/2U I aIO 1 OU/WR EIE(c)1/4OOoAoa RDY/BSY 1/2aI 2 OOE1/2 RDY/BSY a I1/4uI1/4 74 J 1/2aEoaI 1 EeOA XA1 XA0 I 10 EAUAuAi1/4OOO 2 EeOA DATA = 0000 0000 OaEC IUx/ AAuAi 3 o XTAL1 OoOyAoa K OO 128 I A 1/2 J O1/2EuOEy3/4Y1/4Ee I1/4 77 aIIO
F
o 2 IEC B 1/21/4OOOAOO*IxO
I1/4 78 aII
A FLASH 1 A 1/4OOOAuAi 0000 0010 2 H 1/4OOOOO*AIxO1/2U $00~$1F 3 B 1/4OOOOO*AIIxO1/2U $00~$FF 4 EeOA/OE I BS1 I 0 EEEOOO DATA xUIA FLASH Ey3/4YAIIxO1/2U 5 EeOA BS1 I 1 EEEOOA FLASH Ey3/4YAIxO1/2U 6 EeOA/OE I 1 aI EEPROM 1 A 1/4OOOAuAi 0001 0001 2 H 1/4OOOOO*AIxO1/2U $00~$01 3 B 1/4OOOOO*AIIxO1/2U $00~$FF 4 E 1/4OOOEy3/4YAIIxO1/2U $00~$FF L Ey3/4YAIIxO1/2U 1 EeOA BS I 0 NOnEy3/4YAIIxO1/2U 2 OU/WR EIE(c)1/4OAoa RDY/BSY 1/2aI 3 OOE1/2 RDY/BSY a I1/4uI1/4 75 1/4OOOoAAuAiIOO*OUaIyIOIOa IAEIaAE l /AaoaeAE/OO*E 1/2oe1/4OOOOIAuAi
O|1/4ACEcIAOoEO
U56O56O
ATMEGA161
l 1/2oeOUaIAAOO E1/4OOOOIOO*xO1/2U 256 o WORD l EcuOAEAEAyAuAi OoIeaIEy3/4Y $FF Oa(c)O-OoINuEEOAOUAE FLASH EEPROM Ie I1/4 79 aI EEPROM
A EEPROM 1 A 1/4OOOAuAi 0000 0011 2 H 1/4OOOOO*AIxO1/2U $00~$01 3 B 1/4OOOOO*AIIxO1/2U $00~$FF 4 EeOA/OE I BS1 I 0 EEEOOO DATA xUIAEEy3/4YAIIxO1/2U 5 EeOA/OE I 1 aIEUEI 1 A 1/4OOOAuAi 0100 0000 2 C 1/4OOOEy3/4YAIIxO1/2U Bit n = 0
uiOaI
3
Bit 6 = BOOTRST Bit 5 = SPIEN Bit 4 = BODLEVEL Bit 3 = BODEN Bit 2..0 = CKSEL2..0 Bit 7 = 1 EIECAoI OU/WR EIE(c)1/4OAoa OOE1/2 RDY/BSY a
aIEoI 1 A 1/4OOOAuAi 0010 0000 2 D 1/4OOOEy3/4YAIIxO1/2U Bit n = 0 Bit 5 = Lock Bit12 Bit 4 = Lock Bit11 Bit 3 = Lock Bit02 Bit 2 = Lock Bit01 Bit 1 = Lock Bit2 Bit 0 = Lock Bit1 Bit 7- 6 = 1 Oa(c)IECAoI 3 L Ey3/4YAIIxO1/2U EoIOAUOU3/4AEAyEIECay AEUEIIEoI 1 A 1/4OOOAuAi 0000 0100 2 EeOA/OE I 0 BS I 0 Bit 6 Bit 5 Bit 4 Bit 3 = = = = BOOTRST SPIEN BODLEVEL BODEN
uiOaI
EEEOOO DATA xUIAEEy3/4Y
U57O57O
ATMEGA161
Bit 2..0 = CKSEL2..0 EeOA/OE I 0 BS I Bit 5 = Lock Bit12 Bit 4 = Lock Bit11 Bit 3 = Lock Bit02 Bit 2 = Lock Bit01 Bit 1 = Lock Bit2 Bit 0 = Lock Bit1 EeOA/OE I 1
0
EEEOOO DATA xUIAEEy3/4Y
3
Ae 1 A 1/4OOOAuAi 0000 1000 C 1/4OOOEy3/4YAIIxO1/2U $00~$02 EeOA/OE I 0 BS I 0 EEEOOO DATA xUIAE1/2Ey3/4Y 2 EeOA/OE I 1
aIIOO
I1/480
aIEo
*uA VP P IP P tDVXH tXHXL tXLDX tXLWL tBVXH tPHPL tP LBX tPLWL tBVWL tRHBX tWLWH tWLRL tWLRH tWLRH _CE tWLRH _FL
ASH
tXLOL tOLDV tOHDZ xOa
aIIOO T A = 25 10% VCC = 5V 10% IEy xiO aIO xioO 11.5 12.5 aIEAUcN 250 aIEAUcA/ Data & Control Setup before XTAL1 High 67 67 XTAL2 Aoi Data & Control Hold after XTAL1 Low 67 XTAL1 Low to /WR Low 67 BS1 Valid before XTAL1 High 67 PAGEL Pulse Width High 67 BS1 Hold after RDY/BSY High 67 PAGEL Low to /WR Low 67 BS1 Valid to /WR Low 67 BS1 Hold after RDY/BSY High 67 /WR Pluse Width Low 67 /WR Low to RDY/BSY Low 0 25 /WR Low to RDY/BSY High(1) 0.5 0.7 0.9 /WR Low to RDY/BSY High for Chip 10 14 18 Erase(2) /WR Low to RDY/BSY High for Write 5 7 9 Flash(3) XTAL1 Low to /OE Low 67 /OE Low to DATA Valid 20 /OE High to DATA Tri-stated 20
1 2 3 t WLRH 1/2oOU EEPROM EUEIIEoIEO t WLRH _CE 1/2oOUAEAyEO t WLRH _FLASH 1/2oOU FLASH EO
i 44
I V A ns ns ns ns ns ns ns ns ns ns ns s ms ms ms ns ns ns
U58O58O
ATMEGA161
(R)IAOO
/RESET A-1/2OE
EaEe I MISO
FLASH I EEPROM EOO1/2o(R)IAOO (R)1/2OUuASCK MOSI Eao /RESET A-Io OU1/2oaI/AyO(R)CExIEOOaIEAUO
Ai OOU EEPROM OEOUAEa3/4EiOxOAy|AUIxOE|AU OoEuAEIeAy AyO Ai1/2E FLASH I EEPROM AAUEYEaI$FF FLASH A*IEC$0000~$1FFF EEPROM A*IEC$000~$01FF EOOEOOO XTAL1 Oy1/2AEaEe oEC1/23/4On1/2O1/2 XTAL1 I XTAL2 SCK AoaAxiIc AE1/2E1/4aI I > 2 o XTAL1 EOO > 2 o XTAL1 EOO (R)aIEa*
1/2o(R)aIE SCK AEIEyNOEaEe ATMEGA161 Ey3/4YOU
OU SCK AIA1/2NOEao
aIEa*EcIA 1 EIcyI OU/RESET I SCK A-IAIEOU VC C I GND O(R)1/4a1/4OEIcOcN OUOuoaIyIO /RESET OOOOII OUA(c)CeoIA aIAE/EAUI*OOUEIcyIOO SCK II EE EOOIEA-I SCK EoOU/RESET EIE(c)1/4OOoOoOAEUA1/2o XTAL EOOA OyAoa 2 OAEUEy 20ms EoOU MOSI PB5 1/4OOO(R)EaEeaIEAUOAi 3 EcuINE1/2Oo(R)aI1/2EU EcuI1/2 OoOUaIEAUAuAiU 3 oxO1/2UAEoAE/ 1/4aIiO|UoxO1/2U $53 AUIiO|OyE*Oe*n 4 xO1/2UOAiOe*Ie EcuIiO|EC $53 o/RESET E(c)1/4OOoOyAoaOO*aIEAUOAi 4 EcuOAEAyOAi OU/RESET EIE(c)1/4OOyAoa O1/2U1/2 5 FLASH ECOOOIIEeA 1/4OOOOAuAiIEIeEEy3/4YIOO*I 6 IA1/4OOO oOAu AiOo1/4OOOOO*A 7 I EcuOAEy3/4Y1/4ia|AU OoOeEyOAEU tWD_FLASH AE1/4aAAU
1/4IoIAOOA1/4OOO *nOoOEAUAEAEEy3/4Y
6
7 8 9
EEPROM ECOoxO1/2UOoxO1/2UaIA OUAEy3/4YEeO(R)CO-IEAUEY1/2xOAy Ecu OAEy3/4Y1/4ia|AU Oo*EIIeOAioOEy tWD_EEPROM AE1/4a OOUAyyAAE/1/4 Ey3/4Y $FF 3/4IOAxAOUAE EIOaOoAUaeOO*1/4EOOOAAOAiOU MISO PB6 Ao aI1/2aEoo N/RESET A- 1/2oEeOyx/AE1/2 IAcyI EcueOA 1/2 XTAL1 A-I EcuAOOAIa3/4On N/RESET A- OocO
FLASH Ey3/4Y1/4ia FLASH E
EcuAUyIAO1/2aEo AOyOUAOO*aA1/2$FF yI1/2aEoo AEAEy3/4YOoIEeAEy3/4Y OAOaOO*1/2*EOOE*IEEOOEeAEy3/4Y ECOOUIOAEy 3/4Y$FF 3/4IEOOOAOaOO*1/2*AE EEO|OUaIAEy3/4YO(R)COAEUEy tWD_FLASH AE1/4a Ec
U59O59O
ATMEGA161
u3/4AEOUaIO(R)CON3/4-1/2oy3/4AEAy
OoEy3/4Y $FF 3/4IEOOOAOUaIAE
EEPROM Ey3/4Y1/4ia EEPROM
E EcuAUyIAO1/2aEo AOyOUAOO*aA1/2$FF yI1/2aEoo AEAEy3/4YOoIEeAEy3/4Y OAOaOO*1/2*EOOE*IEEOOEeAEy3/4Y ECOOUIOAEy 3/4Y$FF 3/4IEOOOAOaOO*1/2*AE EEO|OUaIAEy3/4YO(R)COAEUEy tWD_EEPROM AE1/4a Ecu3/4AEOUaI EEPROM O(R)CON3/4-1/2oy3/4AEAy OoEy3/4Y$FF 3/4IEOOOAOUaIAE *uA tWD_FLASH tWD_EEPROM i 45 FLASH o EEPROM EAxiEyE1/4a 3.2V 3.6V 4.0V 28ms 22ms 15ms 9ms 7ms 6ms i 46 OAi aIEAU 3/4AEAy A FLASH 1/4OOO FLASH O FLASHO A EEPROM xO1/2U 1 1010 1100 1010 1100 0010 H000 0100 H000 0100 1100 1010 0000 ATMEGA161 A(R)aIOAi OAinE1/2 xO1/2U 2 xO1/2U 3 xO1/2U 4 0101 0011 xxxx xxxx xxxx xxxx 100x xxxx xxxa aaaa xxxx xxxx xxxa aaaa xxxx xxxa xxxx xxxx bbbb bbbb xxbb bbbb bbxx xxxx bbbb bbbb bbbb bbbb xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxbb xxxx xxxx xxxx xxxx oooo oooo iiii iiii iiii iiii oooo oooo iiii iiii xx65 4321 1165 4321 oooo oooo 1DCB A987 xDCB A987 5.0V 11ms 4ms
Ux/ /RESET IIEE AU(R)aI Ay FLASH I EE OxOOO* a:b AE H oI xO1/2U o OUxOOO* b H oI xO1/2U i 1/2aCoO1/2O O* a:b OOO* a:b AEEy 3/4Y o Ey3/4Y i 1/2OO* a:b EoI "0"uiONaI OOO* b Ae o "0"uiOaI "0"uiONaI
xxxx xxxa EEPROM 1100 0000 0101 1000 xxxx xxxx AEoI 1010 1100 111x xxxx EoI 0101 0000 xxxx xxxx Ae 1010 1100 101x xxxx EUEI 0011 0000 Xxxx xxxx AEUEI xOa a = OO* Bit b = OO*I Bit H = 0 IOO* 1 OO* o = EaoEy3/4Y i = EaEeEy3/4Y x = EIOa 1 = Lock Bit1 2 = Lock Bit2 3 = BOOT Lock Bit01 4 = BOOT Lock Bit02 5 = BOOT Lock Bit11 6 = BOOT Lock Bit12 7 = CKSEL0 8 = CKSEL1
U60O60O
ATMEGA161
9 = CKSEL2 A = BODEN B = BODLEVEL C = SPIEN D = BOOTRST I1/4 81 (R)aII 1/2 85 VCC = 2.7V - 5.5V xiO aIO xioO 0 4 250 0 8 125 2 tCLCL 2tCLCL tCLCL 2tCLCL 10 16 32
*uA 1/ tCLCL tCLCL 1/ tCLCL tCLCL tSHSL tSLSH tOVSH tSHOX tSLIV
i 47 (R)aIcIOO T A = -40 IEy OnAEAE VCC = 2.7V - 5.5V OnOUAEU VCC = 2.7V - 5.5V OnAEAE VCC = 4.0V - 5.5V OnOUAEU VCC = 4.0V - 5.5V SCK SCK I MOSI Setup to SCK High MOSI Hold after SCK High SCK Low to MISO Valid
I MHz ns MHz ns ns ns ns ns ns
OA/IOO T A = -40 *uA VIL VIL1 VIH VIH1 VIH2 VOL VOH IIL IIH RRST RI/O ICC 1/2 85 VCC = 2.7V - 3.6V I 4.0V - 5.5V Io1/4 yAE XTAL1 XTAL1 yAE XTAL1 I /RESET XTAL1 /RESET IOL =20mA VCC = 5V IOL =10mA VCC = 3V IOH =-3mA VCC = 5V IOH =-1.5mA,VCC = 3V VCC = 5.5V pin low VCC = 5.5V pin low 100 35 x/xI VCC = 3V 4MHz IOAxI VCC = 3V 4MHz WDT EAU VCC = 3V WDT 1/2uO VCC = 3V VCC = 5V xiO -0.5 -0.5 0.6 VCC (2) 0.8 VCC (2) 0.9 VCC (2) aIO xioO 0.3 VCC (1) 0.2 VCC (1) VCC +0.5 VCC +0.5 VCC +0.5 0.6 0.5 I V V V V V V V 8.0 980 500 120 3.0 1.2 15.0 2.0 40 A nA k k mA mA A A mV
IEy EaEeIcN EaEeIcN EaEecN EaEecN EaEecN EaoIcN 3 A,B,C,D U EaocN 4 A,B,C,D U EaEeAcA/ I/O 1/2A EaEeAcA/ I/O 1/2A IEIA-cxe I/O UAEIA-c xe cOcA/
4.2 2.3
ICC VACIO
ocAE1/2
5
9
AAaE1/2IAE/Ea EeAEOAcA/
U61O61O
ATMEGA161
IACLK tACPD
AAaE1/2IAE/Ea EeAcA/ AAaE1/2IAE/ EaNOU
VCC=5V VIN =VCC /2 VCC = 2.7V VCC = 4.0V
-50 750 500
50
nA ns
xOa 1 xioO uiOEOO 0 AEEAxicN 2 xiO uiOEOO 1 AEEAxiIcN 3 EaEAo I/O UOUIIAEOOIuEOyaEOIo1/4 VCC = 5V I 20mA VCC = 3V I 10mA AcA/ exnEOEcIAIo1/4 1]EuO I/O UA IOL O(R)IAUy 200mA 2]A U ALE OC1B I C0-C7 A IOL O(R)IAUy 100mA 3]B U D UI XTAL2 A IOL O(R)IAUy 100mA Ecu IOL yaEOIo1/4 Oo VOL O1/2yIaOAOe yaEOex1/4EOAAOO 4 EaEAo I/O UOUIIAEOOIuEOyaEOIo1/4 VCC = 5V I 3mA VCC = 3V I 1.5mA AcA/ exnEOEcIAIo1/4 1]EuO I/O UA IOH O(R)IAUy 200mA 2] B U D UI XTAL2 A IOH O(R)IAUy 100mA 3] B U D UI XTAL2 A IOH O(R)IAUy 100mA Ecu IOH yaEOIo1/4 Oo VOH O1/2yIaOAOe yaEOex1/4EOAAOO 5 ocE VCC xiAUIOU 2V IaEOOCyI I1/4 83 IaEOO
*uA 1/ tCLCL tCLCL tCHCX tCLCX tCLCH tCHCL
IEy OnAEAE EOOOUAEU cAE1/2E1/4a IcAE1/2E1/4a EIEyE1/4a IA1/2E1/4a
i 48 IaEOO VCC =2.7V~3.6V xiO xioO 0 4 250 100 100 1.6 1.6
VCC =4.0V~5.5V xiO xioO 0 8 125 50 50 0.5 0.5
I MHz ns ns ns s s
IaaeAE/Eo
i49
*uA 0 1 2 3a 3b 1/tCLCL tLHLL tAVLL tLLAX_ST tLLAX_L
D
IaaeAE/IOO IEy
OnAEAE ALE AoaiE AUOO*O1/2 ALEI ALEIO(R)oOO*OE 1/4a ST/STD/STS OAi ALEIO(R)oOO*OE 1/4a LD/LDD/LDS OAi
4.0V - 5.5V IEyOUAEU 8M 3/4On AEaEu3/4On xiO xioO xiO xioO 0.0 6.0
I MHz ns ns ns ns
U62O62O
ATMEGA161
4 5 6 7 8 9 10 11 12 13 14 15 16 xOa
tAVLLC tAVRL tAVWL tLLWL tLLRL tDVRH T RLDV T RHDX T RLRH T DVWL T WHDX T DVWH T WLWH
1 2
LD/LDD/LDS OAi C UOO*O1/2 ALEI OO*O1/2 RD I OO*O1/2 WR I ALE I1/2 WR I ALE I1/2 RD I Ey3/4YEe1/2 RD RD I1/2Ey3/4YO RD O(R)oEy3/4YO RD AoaiE Ey3/4YEe1/2 WR I WR O(R)oEy3/4YO Ey3/4YO1/2 WR WR AoaiE
1/4a eOUAEU eOUAEU half period E1/4EI XTAL1 AcAE1/2E1/4a half period E1/4EI XTAL1 AIcAE1/2E1/4a
ns ns ns ns ns ns ns ns ns ns ns ns ns
1/4UI 50%AO1/4OE 1/4UI 50%AO1/4OE
i 50 *uA 0 10 12 15 16 1/tCLCL T RLDV T RLRH T DVWH T WLWH
IaaeAE/IOO IEy
OnAEAE RD I1/2Ey3/4YO RD AoaiE Ey3/4YO1/2 WR WR AoaiE i 51 IaaeAE/IOO IEy OnAEAE RD I1/2Ey3/4YO RD AoaiE Ey3/4YO1/2 WR WR AoaiE i 52 IaaeAE/IOO IEy OnAEAE RD I1/2Ey3/4YO RD AoaiE Ey3/4YO1/2 WR WR AoaiE i 53
4.0V - 5.5V OoEyOUAEU 8M 3/4On AEaEu3/4On xiO xioO xiO xioO 0.0 8.0
I MHz ns ns ns ns
*uA 0 10 12 15 16 1/tCLCL T RLDV T RLRH T DVWH T WLWH
4.0V - 5.5V SRWn1 = 1 SRWn0 = 0 4M 3/4On AEaEu3/4On xiO xioO xiO xioO 0.0 8.0
I MHz ns ns ns ns
*uA 0 10 12 15 16 1/tCLCL T RLDV T RLRH T DVWH T WLWH
4.0V - 5.5V SRWn1 = 1 SRWn0 = 1 4M 3/4On AEaEu3/4On xiO xioO xiO xioO 0.0 8.0
I MHz ns ns ns ns
IaaeAE/IOO IEy
*uA
2.7V - 5.5V IEyOUAEU 8M 3/4On AEaEu3/4On xiO xioO xiO xioO
I
U63O63O
ATMEGA161
0 1 2 3a 3b 4 5 6 7 8 9 10 11 12 13 14 15 16 xOa
1/tCLCL tLHLL tAVLL tLLAX_ST tLLAX_L
D
tAVLLC tAVRL tAVWL tLLWL tLLRL tDVRH T RLDV T RHDX T RLRH T DVWL T WHDX T DVWH T WLWH
1 2
OnAEAE ALE AoaiE AUOO*O1/2 ALEI ALEIO(R)oOO*OE 1/4a ST/STD/STS OAi ALEIO(R)oOO*OE 1/4a LD/LDD/LDS OAi C UOO*O1/2 ALEI OO*O1/2 RD I OO*O1/2 WR I ALE I1/2 WR I ALE I1/2 RD I Ey3/4YEe1/2 RD RD I1/2Ey3/4YO RD O(R)oEy3/4YO RD AoaiE Ey3/4YEe1/2 WR I WR O(R)oEy3/4YO Ey3/4YO1/2 WR WR AoaiE
eOUAEU eOUAEU
0.0
6.0
MHz ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns
1/4UI 50%AO1/4OE 1/4UI 50%AO1/4OE
half period E1/4EI XTAL1 AcAE1/2E1/4a half period E1/4EI XTAL1 AIcAE1/2E1/4a
i 54 *uA 0 10 12 15 16 1/tCLCL T RLDV T RLRH T DVWH T WLWH
IaaeAE/IOO IEy
OnAEAE RD I1/2Ey3/4YO RD AoaiE Ey3/4YO1/2 WR WR AoaiE i 55 IaaeAE/IOO IEy OnAEAE RD I1/2Ey3/4YO RD AoaiE Ey3/4YO1/2 WR WR AoaiE i 56 IaaeAE/IOO IEy OnAEAE RD I1/2Ey3/4YO RD AoaiE Ey3/4YO1/2 WR
2.7V - 5.5V OoEyOUAEU 8M 3/4On AEaEu3/4On xiO xioO xiO xioO 0.0 8.0
I MHz ns ns ns ns
*uA 0 10 12 15 16 1/tCLCL T RLDV T RLRH T DVWH T WLWH
2.7V - 5.5V SRWn1 = 1 SRWn0 = 0 4M 3/4On AEaEu3/4On xiO xioO xiO xioO 0.0 8.0
I MHz ns ns ns ns
*uA 0 10 12 15 1/tCLCL T RLDV T RLRH T DVWH
2.7V - 5.5V SRWn1 = 1 SRWn0 = 1 4M 3/4On AEaEu3/4On xiO xioO xiO xioO 0.0 8.0
I MHz ns ns ns
U64O64O
ATMEGA161
16
T WLWH
WR AoaiE I1/4 84 I1/4 85 I1/4 86 I1/4 87 IaaeAE/EoI1/4 IaaeAE/EoI1/4 IaaeAE/EoI1/4 IaaeAE/EoI1/4 SRWn1 = 0 SRWn1 = 0 SRWn1 = 1 SRWn1 = 1 SRWn0 = 0 SRWn0 = 1 SRWn0 = 0 SRWn0 = 1
ns
aIIOO
ooI1/4iiA/AEAE/1/4AaIIOa Oa(c)Ey3/4YAO1/2o 100%AaEO
|AaAAIo1/4IEu
O I/O Oy1/2AAaOAIEaEe OEIAOyIO*EuAE/x/IEOO ocAE1/2A|AOeEOOANOnIO AE/1/4|AEUOOIAOoEOOIi x/cN x/AEAE I/O UA1/4OOO I/O UaAEAE OA uAeOO1/4x/IAE O/OOoEOECx/cNIAEAE EYOOOA|AEOEE1/2 CL *VCC*f 1/2o1/4AEEa E1/2O CL IOOcEY VCC =x/cN f=I/O Oy1/2AAAE1/23/4uOAEAE AE/1/4CuIeEOUaEOA1/4I EOAEOOOO(c)AE/1/4AOeAEOA x/OUocAE1/2E AA*EAU1/41/2uOA1/2IoCuIO(R)i1/4iE3/4AEAA*A|A
O Rd AA1/4AaeAE/
Ai
Rr k s q O1/4AaeAE/ EyiE3/4AOO* xI1/4AaeAE/OAI AEOAEA 6 I EUOIiAeO3/4 Z,C,N,V ,S,H Z,C,N,V ,S,H Z,C,N,V ,S Z,C,N,V ,S,H Z,C,N,V ,S,H Z,C,N,V ,S,H Z,C,N,V ,S,H Z,C,N,V ,S Z, N,V ,S Z, N,V ,S Z, N,V ,S Z, N,V ,S Z, N,V ,S Z,C,N,V ,S EOOEy 1 1 2 1 1 1 1 2 1 1 1 1 1 1
K Ey b 1/4AaeAE/IA1/4o I/O 1/4AaeAE/AI ZYX R31:R26 A I/O OO* Ou1/4C*u ADD ADC ADIW SUB SUBI SBC SBC I SBIW AND ANDI OR ORI EOR COM Ux/Ey Rd Rd Rd Rd Rd Rd Rd Rd Rd Rd Rd Rd Rd Rd Rr Rr K Rr K Rr K K Rr K Rr K Rr AeEo
Ux/ EaEo1/4A1/4-Ux/ Rd Rd + Rr o1/2oII1/4O Rd Rd + Rr + C o1/2oII1/4O Rd+1:Rd Rd+1:Rd+K oxO1/4OA1/4Ey Rd Rd - Rr o1/2oII1/4o Rd Rd - K 1/4oA1/4Ey Rd Rd - Rr - C o1/2oII1/4o Rd Rd - K - C o1/2oI1/4oA1/4Ey Rd+1:Rd Rd+1:Rd-K oxO1/4oA1/4Ey A1/4-Oe Rd Rd Rr OeA1/4Ey Rd Rd K A1/4-o Rd Rd Rr oA1/4Ey Rd Rd K Oio Rd Rd O Rr 1 Rd $FF - Rd
U65O65O
ATMEGA161
NEG SBR CBR INC DEC TST CLR SER MUL MULS MULSU FMUL FMULS FMULSU
Rd Rd Rd Rd Rd Rd Rd Rd Rd Rd Rd Rd
K K
Rr Rr Rr Rr
Rd Rr Rd Rr
RJMP IJMP JMP RCALL ICALL CALL RET RETI CPSE CP CPC CPI SBRC SBRS SBIC SBIS BRBS BRBC BREQ BRNE BRCS BRCC BRSH
k
k k
k
Rd Rr Rd Rd Rd Rd Rr Rr K b
Rd b Ab Ab s s k k k k k k k
Rd $00 - Rd Rd Rd K Rd Rd $FF - K Rd Rd + 1 Rd Rd - 1 Rd Rd Rd Rd Rd O Rd Rd $FF R1:R0 Rd Rr(UU) R1:R0 Rd Rr(SS) R1:R0 Rd Rr(SU) R1:R0 Rd Rr<<1 (UU) O*uA*OEyE R1:R0 Rd Rr<<1 (SS) O/I*uA*OEyE R1:R0 Rd Rr<<1 (SU) IoxOAi PC PC + k + 1 IaOIox PC(15:0)Z, 1/4a1/2OIox Z PC(21:16)0 PC k 3/4oOIox PC PC + k + 1 IaO/OA PC(15:0)Z, 1/4a1/2O/OA Z PC(21:16)0 PC k 3/4oO/OA /OA*O PC NO OI*O PC NO E1/2I IaEOoIo Eo Rd=Rr PCPC+2 o 3 Rd - Rr E1/2I Rd - Rr - C o1/2oIIE1/2I Rd - K OeA1/4EyE1/2I 1/4AaeAE/ICaAa1/4 Eo Rd b =0 Io PCPC+2 o 3 1/4AaeAE/IOAI1/4 Eo I/O A b =1 Io PCPC+2 o 3 I/O 1/4AaeAE/ICaAa Eo I/O A b =0 1/4Io PCPC+2 o 3 I/O 1/4AaeAE/IOAI Eo Rd b =1 1/4Io PCPC+2 o 3 xIeO3/4OAIIo Eo SREG s =1 PCPC+k+1 xIeO3/4CaAaIo Eo SREG s =0 PCPC+k+1 IaE1/4Io Eo Z=1 PCPC+k+1 E1/4Io Eo Z=0 PCPC+k+1 1/2oI1/4Io Eo C=1 PCPC+k+1 AO1/2oI1/4Io Eo C=0 PCPC+k+1 oOUEOU1/4Io I Eo C=0 PCPC+k+1 2 AAe 1/4AaeAE/AIOAI 1/4AaeAE/AICaAa 1/4OO 1/4oO AaIaEO Cay1/4AaeAE/ OAI1/4AaeAE/ I*uAEyE O*uAEyE O/I*uAEyE I*uA*OEyE
U66O66O
Z,C,N,V ,S,H Z, N,V ,S Z, N,V ,S Z, N,V ,S Z, N,V ,S Z, N,V ,S Z, N,V ,S Z,C Z,C Z,C Z,C Z,C Z,C
1 1 1 1 1 1 1 1 2 2 2 2 2 2
I Z,C,N,V ,S,H Z,C,N,V ,S,H Z,C,N,V ,S,H -
2 2 3 3/4 3/4 4/5 4/5 4/5 1/2/3 1 1 1 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
ATMEGA161
*uA
BRLO BRMI BRPL BRGE BRLT BRHS BRHC BRTS BRTC BRVS BRVC BRIE BRID MOV MOVW LDI LDS LD LD LD LD LD LD LDD LD LD LD LDD STS ST ST ST ST ST ST STD ST ST ST STD LPM LPM LPM
k k k k k k k k k k k k k Rd Rr Rd Rr Rd K Rd k Rd X Rd X+ Rd -X Rd Y Rd Y+ Rd -Y Rd,Y+q Rd Z Rd Z+ Rd -Z Rd,Z+q k Rr X Rr X+ Rr X- Rr Y Rr Y+ Rr Y- Rr Y+q,Rr Z Rr Z+ Rr Z- Rr Z+q,Rr Rd Z Rd Z+
OU1/4Io I*u A 1/4Io Oy1/4Io oOUEOU1/4Io O *uA OU1/4Io O*u A H IOAI1/4Io H ICaAa1/4Io T OAI1/4Io T CaAa1/4Io V OAI1/4Io V CaAa1/4Io OIEAU1/4Io OI1/2uO1/4Io
Eo C=1 PCPC+k+1
-
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 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3
Eo N=1 PCPC+k+1 Eo N=0 PCPC+k+1 Eo NO+V=1 PCPC+k+1 Eo NO+V=0 PCPC+k+1 Eo H=1 PCPC+k+1 Eo H=0 PCPC+k+1 Eo T=1 PCPC+k+1 Eo T=0 PCPC+k+1 Eo V=1 PCPC+k+1 Eo V=0 PCPC+k+1 Eo I=1 PCPC+k+1 Eo I=0 PCPC+k+1 Ey3/4YEaOAi Rd Rr 1/21/4AaeAE/ Rd+1:Rd Rr+1:Rr 1/2OO1/4AaeAE/ Rd K EA1/4Ey OEy3/4YCoEEy Rd k 1/4a1/2OEEy Rd X 1/4a1/2OEEy o1/4O Rd X XX+1 1/4a1/2OEEy IE1/4o XX-1 Rd X 1/4a1/2OEEy Rd Y 1/4a1/2OEEy o1/4O Rd Y YY+1 1/4a1/2OEEy IE1/4o YY-1 Rd Y oAEOAE1/4a1/2OEEy Rd Y + q 1/4a1/2OEEy Rd Z 1/4a1/2OEEy o1/4O Rd Z ZZ+1 1/4a1/2OEEy IE1/4o ZZ-1 Rd Z oAEOAE1/4a1/2OEEy Rd Z + q aeEyOUEy3/4YCo k Rr 1/4a1/2OaeEy X Rr 1/4a1/2OaeEy o1/4O X Rr XX+1 1/4a1/2OaeEy IE1/4o XX-1 X Rr 1/4a1/2OaeEy Y Rr 1/4a1/2OaeEy o1/4O Y Rr YY+1 1/4a1/2OaeEy IE1/4o YY-1 Y Rr oAEOAE1/4a1/2OaeEy Y + q Rr 1/4a1/2OaeEy Z Rr 1/4a1/2OaeEy o1/4O Z Rr ZZ+1 1/4a1/2OaeEy IE1/4o ZZ-1 Z Rr oAEOAE1/4a1/2OaeEy Z + q Rr OUIoCoEEy R0 Z OUIoCoEEy Rd Z OUIoCoEEy o Rd Z ZZ+1 1/4O
U67O67O
ATMEGA161
SPM IN OUT PUSH POP LSL LSR ROL ROR ASR SWAP BSET BCLR SBI CBI BST BLD SEC CLC STN CLN SEZ CLZ SEI CLI SES CLS SEV CLV SET CLT SEH CLH NOP SLEEP WDR
Rd A A Rr Rr Rd Rd Rd Rd Rd Rd Rd s s Ab Ab Rr b Rd b
Z R1:R0 Rd I/O A I/O A Rr STACK Rr Rd STACK I1/4IaEOOAi A1/4-xoOAE Rd(n + 1) Rd(n) Rd(n)0 CRd(7) A1/4-OOOAE Rd(n) Rd(n + 1) Rd(7)0 CRd(0) o1/2oIIxoOAE Rd(0)C Rd(n + 1) Rd(n) CRd(7) o1/2oIIOOOAE Rd(7)C Rd(n) Rd(n + 1) CRd(0) EaEoOOOAE Rd(n) Rd(n + 1) n=6..0 Rd(3..0) a Rd(7..4) II1/2 EeOAeO3/4 SREG s 1 CayeO3/4 SREG s 0 EeOA I/O 1/4AaeAE/ I/O A b 1 AI Cay I/O 1/4AaeAE/ I/O A b 0 AI Rr A b I1/2 T T Rr b T 1/2 Rr A b I Rr b T C1 OAI C C0 CaAa C N1 OAI N N0 CaAa N Z1 OAI Z Z0 CaAa Z I1 OAI I I0 CaAa I S1 OAI S S0 CaAa S V 1 OAI V V 0 CaAa V T1 OAI T T0 CaAa T H 1 OAI H H 0 CaAa H OUx/ YAOAi AA*I aeEyOUIoCo O I/O EEy aeEyOU I/O EeO oO
Z,C,N,V ,H Z,C,N,V Z,C,N,V ,H Z,C,N,V Z,C,N,V SREG s SREG s T C C N N Z Z I I S S V V T T H H -
1 1 2 2 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 1
oAI
EUEMHz
cO V
oA
U68O68O
*ax
x/*I
ATMEGA161
4
2.7 - 5.5
8
4.0 - 5.5
ATMEGA161 - 4AC ATMEGA161 - 4JC ATMEGA161 - 4PC ATMEGA161 - 4AI ATMEGA161 - 4JI ATMEGA161 - 4PI ATMEGA161 - 8AC ATMEGA161 - 8JC ATMEGA161 - 8PC ATMEGA161 - 8AI ATMEGA161 - 8JI ATMEGA161 - 8PI *a x Aa I
44A 44J 40P6 44A 44J 40P6 44A 44J 40P6 44A 44J 40P6
EIOA 0 - 70 O -40 - 85 EIOA - 70 O - 85
0
-40
44A 44J 44P6
44 1/2A 44 1/2A 40 1/2A
TQFP PLCC PDIP
*yI1/4Eue3/4
aaEi1/4
AVR ASM Aa*NEi1/4 *AOaeAE/ AVR ICE STDPOD o ADCPOD o ICE 200 /EOEi1/4I AVR STUDIO Owww.atmel.comoWWW.SL.COM.CNIAOO IAOOAE/ START KIT 200 oUEy*1/2EI Ec aOYIiOEAucxOOIE3/4 SL-AVR,LT-48. Aa*NEi1/4 E EOwww.atmel.comoWWW.SL.COM.CNIAOO
U69O69O

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