ATMEGA169 ATMEL [ATMEL Corporation], ATMEGA169 Datasheet - Page 362

• Manufacturer Part Number: ATMEGA169
• Description: 8-bit Microcontroller with 16K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

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ATmega169/V
JTAG Interface and On-chip Debug System ................................. 226
IEEE 1149.1 (JTAG) Boundary-scan .............................................. 232
Boot Loader Support – Read-While-Write Self-Programming ..... 252
Memory Programming..................................................................... 266
Electrical Characteristics................................................................ 298
Mode of Operation ............................................................................................ 212
LCD Usage ....................................................................................................... 216
Overview........................................................................................................... 226
Test Access Port – TAP.................................................................................... 226
TAP Controller .................................................................................................. 228
Using the Boundary-scan Chain ....................................................................... 229
Using the On-chip Debug System .................................................................... 229
On-chip Debug Specific JTAG Instructions ...................................................... 230
On-chip Debug Related Register in I/O Memory .............................................. 231
Using the JTAG Programming Capabilities ...................................................... 231
Bibliography ...................................................................................................... 231
Features............................................................................................................ 232
System Overview.............................................................................................. 232
Data Registers .................................................................................................. 232
Boundary-scan Specific JTAG Instructions ...................................................... 234
Boundary-scan Related Register in I/O Memory .............................................. 235
Boundary-scan Chain ....................................................................................... 236
ATmega169 Boundary-scan Order................................................................... 246
Boundary-scan Description Language Files ..................................................... 251
Boot Loader Features ....................................................................................... 252
Application and Boot Loader Flash Sections .................................................... 252
Read-While-Write and No Read-While-Write Flash Sections........................... 252
Boot Loader Lock Bits....................................................................................... 255
Entering the Boot Loader Program ................................................................... 256
Addressing the Flash During Self-Programming .............................................. 258
Self-Programming the Flash ............................................................................. 259
Program And Data Memory Lock Bits .............................................................. 266
Fuse Bits........................................................................................................... 267
Signature Bytes ................................................................................................ 269
Calibration Byte ................................................................................................ 269
Page Size ......................................................................................................... 269
Parallel Programming Parameters, Pin Mapping, and Commands .................. 269
Serial Programming Pin Mapping ..................................................................... 272
Parallel Programming ....................................................................................... 273
Serial Downloading........................................................................................... 281
Programming via the JTAG Interface ............................................................... 285
2514P–AVR–07/06