ATmega325PA Atmel Corporation, ATmega325PA Datasheet - Page 676

• Manufacturer Part Number: ATmega325PA
• Manufacturer: Atmel Corporation

8285D–AVR–06/11
ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P
23 ADC - Analog to Digital Converter ..................................................... 214
24 JTAG Interface and On-chip Debug System ..................................... 232
25 IEEE 1149.1 (JTAG) Boundary-scan ................................................... 239
26 Boot Loader Support – Read-While-Write Self-Programming ......... 266
22.2Register Description ............................................................................................212
23.1Features ..............................................................................................................214
23.2Overview .............................................................................................................214
23.3Operation .............................................................................................................215
23.4Starting a Conversion ..........................................................................................216
23.5Prescaling and Conversion Timing ......................................................................217
23.6Changing Channel or Reference Selection .........................................................219
23.7ADC Noise Canceler ...........................................................................................220
23.8ADC Conversion Result ......................................................................................225
23.9Register Description ............................................................................................227
24.1Features ..............................................................................................................232
24.2Overview .............................................................................................................232
24.3TAP – Test Access Port ......................................................................................233
24.4TAP Controller .....................................................................................................235
24.5Using the Boundary-scan Chain ..........................................................................236
24.6Using the On-chip Debug System .......................................................................236
24.7On-chip Debug Specific JTAG Instructions .........................................................237
24.8Using the JTAG Programming Capabilities .........................................................237
24.9On-chip Debug Related Register in I/O Memory .................................................238
24.10Bibliography .......................................................................................................238
25.1Features ..............................................................................................................239
25.2System Overview ................................................................................................239
25.3Data Registers .....................................................................................................240
25.4Boundary-scan Specific JTAG Instructions .........................................................241
25.5Boundary-scan Chain ..........................................................................................242
25.6Boundary-scan Order ..........................................................................................251
25.7Boundary-scan Description Language Files ........................................................264
25.8Boundary-scan Related Register in I/O Memory .................................................265
26.1Features ..............................................................................................................266
26.2Overview .............................................................................................................266
26.3Application and Boot Loader Flash Sections .......................................................266
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