ATMEga64L ATMEL Corporation, ATMEga64L Datasheet - Page 360

• Manufacturer Part Number: ATMEga64L
• Description: 8-bit AVR Microcontroller with 64K Bytes In-System Programmable Flash
• Manufacturer: ATMEL Corporation

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ATmega64(L)
JTAG Interface and On-chip Debug System ................................. 248
IEEE 1149.1 (JTAG) Boundary-scan .............................................. 254
Boot Loader Support – Read-While-Write Self-programming ..... 277
Memory Programming..................................................................... 290
Operation .......................................................................................................... 231
Starting a Conversion ....................................................................................... 232
Prescaling and Conversion Timing ................................................................... 233
Changing Channel or Reference Selection ...................................................... 236
ADC Noise Canceler......................................................................................... 238
ADC Conversion Result.................................................................................... 242
Features............................................................................................................ 248
Overview........................................................................................................... 248
Test Access Port – TAP.................................................................................... 248
TAP Controller .................................................................................................. 250
Using the Boundary -scan Chain ...................................................................... 251
Using the On-chip Debug system ..................................................................... 251
On-chip Debug Specific JTAG Instructions ...................................................... 252
On-chip Debug Related Register in I/O Memory .............................................. 253
Using the JTAG Programming Capabilities ...................................................... 253
Bibliography ...................................................................................................... 253
Features............................................................................................................ 254
System Overview.............................................................................................. 254
Data Registers .................................................................................................. 254
Boundary-scan Specific JTAG Instructions ...................................................... 256
Boundary-scan Related Register in I/O Memory .............................................. 258
Boundary-scan Chain ....................................................................................... 258
ATmega64 Boundary-scan Order..................................................................... 270
Boundary-scan Description Language Files ..................................................... 276
Features............................................................................................................ 277
Application and Boot Loader Flash Sections .................................................... 277
Read-While-Write and No Read-While-Write Flash Sections........................... 277
Boot Loader Lock Bits....................................................................................... 279
Entering the Boot Loader Program ................................................................... 281
Addressing the Flash During Self-programming............................................... 283
Self-programming the Flash ............................................................................. 284
Program and Data Memory Lock Bits............................................................... 290
Fuse Bits........................................................................................................... 291
Signature Bytes ................................................................................................ 293
Calibration Byte ................................................................................................ 293
Parallel Programming Parameters, Pin Mapping, and Commands .................. 293
Parallel Programming ....................................................................................... 297
Serial Downloading........................................................................................... 306
2490G–AVR–03/04