ATmega128A Atmel Corporation, ATmega128A Datasheet - Page 383

• Manufacturer Part Number: ATmega128A
• Manufacturer: Atmel Corporation

Specifications of ATmega128A

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 8
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 4096
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 8
• Input Capture Channels: 2
• Pwm Channels: 7
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8151H–AVR–02/11
23 Analog to Digital Converter ................................................................ 233
24 JTAG Interface and On-chip Debug System ..................................... 250
25 Boot Loader Support – Read-While-Write Self-Programming ......... 277
22.3
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
24.1
24.2
24.3
24.4
24.5
24.6
24.7
24.8
24.9
24.10
24.11
24.12
24.13
24.14
24.15
24.16
25.1
25.2
25.3
25.4
25.5
25.6
Register Description ......................................................................................231
Features ........................................................................................................233
Overview ........................................................................................................233
Operation .......................................................................................................234
Starting a Conversion ....................................................................................235
Prescaling and Conversion Timing ................................................................236
Changing Channel or Reference Selection ...................................................238
ADC Noise Canceler .....................................................................................239
ADC Conversion Result .................................................................................243
Register Description ......................................................................................245
Features ........................................................................................................250
Overview ........................................................................................................250
TAP – Test Access Port ................................................................................251
TAP Controller ...............................................................................................252
Using the Boundary-scan Chain ....................................................................253
Using the On-chip Debug System .................................................................253
On-chip Debug Specific JTAG Instructions ...................................................254
Using the JTAG Programming Capabilities ...................................................255
Bibliography ...................................................................................................255
IEEE 1149.1 (JTAG) Boundary-scan .............................................................255
Data Registers ...............................................................................................256
Boundary-scan Specific JTAG Instructions ...................................................258
Boundary-scan Chain ....................................................................................259
ATmega128A Boundary-scan Order .............................................................269
Boundary-scan Description Language Files ..................................................276
Register Description ......................................................................................276
Features ........................................................................................................277
Overview ........................................................................................................277
Application and Boot Loader Flash Sections .................................................277
Read-While-Write and No Read-While-Write Flash Sections ........................278
Boot Loader Lock Bits ...................................................................................280
Entering the Boot Loader Program ................................................................281
ATmega128A
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