ATMEGA649V-8AI Atmel, ATMEGA649V-8AI Datasheet - Page 389

• Manufacturer Part Number: ATMEGA649V-8AI
• Description: IC AVR MCU FLASH 64K 1.8V 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA649V-8AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

2552K–AVR–04/11
23 LCD Controller ..................................................................................... 228
24 JTAG Interface and On-chip Debug System ..................................... 245
25 IEEE 1149.1 (JTAG) Boundary-scan ................................................... 251
26 Boot Loader Support – Read-While-Write Self-Programming ......... 278
22.4
22.5
22.6
22.7
23.1
23.2
23.3
23.4
24.1
24.2
24.3
24.4
24.5
24.6
24.7
24.8
24.9
24.10
25.1
25.2
25.3
25.4
25.5
25.6
25.7
25.8
26.1
26.2
26.3
26.4
26.5
Prescaling and Conversion Timing ................................................................214
Changing Channel or Reference Selection ...................................................216
ADC Conversion Result .................................................................................221
Register Description ......................................................................................223
Features ........................................................................................................228
Mode of Operation .........................................................................................231
LCD Usage ....................................................................................................235
Register Description ......................................................................................239
Features ........................................................................................................245
Overview ........................................................................................................245
Test Access Port – TAP ................................................................................245
TAP Controller ...............................................................................................247
Using the Boundary-scan Chain ....................................................................248
Using the On-chip Debug System .................................................................248
On-chip Debug Specific JTAG Instructions ...................................................249
Using the JTAG Programming Capabilities ...................................................250
Bibliography ...................................................................................................250
Register Description ......................................................................................250
Features ........................................................................................................251
System Overview ...........................................................................................251
Data Registers ...............................................................................................251
Boundary-scan Specific JTAG Instructions ...................................................253
Boundary-scan Related Register in I/O Memory ...........................................254
Boundary-scan Chain ....................................................................................255
ATmega329/3290/649/6490 Boundary-scan Order .......................................264
Boundary-scan Description Language Files ..................................................277
Features ........................................................................................................278
Application and Boot Loader Flash Sections .................................................278
Read-While-Write and No Read-While-Write Flash Sections ........................278
Boot Loader Lock Bits ...................................................................................281
Entering the Boot Loader Program ................................................................282
ATmega329/3290/649/6490
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