ATmega32A Atmel Corporation, ATmega32A Datasheet - Page 350

• Manufacturer Part Number: ATmega32A
• Manufacturer: Atmel Corporation

Specifications of ATmega32A

• Flash (kbytes): 32 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• 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): 2
• Eeprom (bytes): 1024
• 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: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

8155C–AVR–02/11
23 JTAG Interface and On-chip Debug System ..................................... 228
24 IEEE 1149.1 (JTAG) Boundary-scan ................................................... 234
25 Boot Loader Support – Read-While-Write Self-Programming ......... 253
22.5
22.6
22.7
22.8
22.9
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
23.10
24.1
24.2
24.3
24.4
24.5
24.6
24.7
24.8
25.1
25.2
25.3
25.4
25.5
25.6
25.7
25.8
25.9
Prescaling and Conversion Timing ................................................................212
Changing Channel or Reference Selection ...................................................215
ADC Noise Canceler .....................................................................................217
ADC Conversion Result .................................................................................222
Register Description ......................................................................................223
Features ........................................................................................................228
Overview ........................................................................................................228
TAP – Test Access Port ................................................................................228
TAP Controller ...............................................................................................230
Using the Boundary-scan Chain ....................................................................231
Using the On-chip Debug System .................................................................231
On-chip Debug Specific JTAG Instructions ...................................................232
Using the JTAG Programming Capabilities ...................................................233
Register Description ......................................................................................233
Bibliography ...................................................................................................233
Features ........................................................................................................234
Overview ........................................................................................................234
Data Registers ...............................................................................................234
Boundary-scan Specific JTAG Instructions ...................................................236
Boundary-scan Chain ....................................................................................237
ATmega32A Boundary-scan Order ...............................................................247
Boundary-scan Description Language Files ..................................................252
Register Description ......................................................................................252
Features ........................................................................................................253
Overview ........................................................................................................253
Application and Boot Loader Flash Sections .................................................253
Read-While-Write and no Read-While-Write Flash Sections ........................254
Boot Loader Lock Bits ...................................................................................256
Entering the Boot Loader Program ................................................................257
Addressing the Flash during Self-Programming ............................................258
Self-Programming the Flash ..........................................................................259
Register Description ......................................................................................265
ATmega32A
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