Rainbow-electronics ATmega162V Manual do Utilizador descarregar pdf (Página 320)

ATmega162/V

2513E–AVR–09/03

IEEE 1149.1 (JTAG) Boundary-scan .............................................. 203

Features............................................................................................................ 203

System Overview.............................................................................................. 203

Data Registers.................................................................................................. 204

Boundary-scan Specific JTAG Instructions ...................................................... 205

Boundary-scan Chain ....................................................................................... 207

ATmega162 Boundary-scan Order................................................................... 212

Boundary-scan Description Language Files..................................................... 215

Boot Loader Support – Read-While-Write Self-programming ..... 216

Features............................................................................................................ 216

Application and Boot Loader Flash Sections.................................................... 216

Read-While-Write and No Read-While-Write Flash Sections........................... 216

Boot Loader Lock Bits....................................................................................... 218

Entering the Boot Loader Program................................................................... 220

Addressing the Flash During Self-programming............................................... 222

Self-programming the Flash ............................................................................. 223

Memory Programming..................................................................... 230

Program And Data Memory Lock Bits .............................................................. 230

Fuse Bits........................................................................................................... 231

Signature Bytes ................................................................................................ 233

Calibration Byte ................................................................................................ 233

Parallel Programming Parameters, Pin Mapping, and Commands .................. 233

Parallel Programming ....................................................................................... 235

Serial Downloading........................................................................................... 244

SPI Serial Programming Pin Mapping .............................................................. 244

Programming via the JTAG Interface ............................................................... 249

Electrical Characteristics................................................................ 263

Absolute Maximum Ratings*............................................................................. 263

DC Characteristics............................................................................................ 263

External Clock Drive Waveforms...................................................................... 266

External Clock Drive ......................................................................................... 266

SPI Timing Characteristics ............................................................................... 267

External Data Memory Timing .......................................................................... 269

ATmega162 Typical Characteristics .............................................. 274

Instruction Set Summary ................................................................ 306

Ordering Information....................................................................... 309

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Rainbow-electronics ATmega162V Manual do Utilizador Página 320