ATMEGA162 Datasheet, PDF (320/323 Pages) ATMEL Corporation – 8-Bit AVR Microcontroller with 16K Bytes In-System ProgrammableFlash

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
Register Summary ........................................................................... 303
Instruction Set Summary ................................................................ 306
Ordering Information ....................................................................... 309
Packaging Information .................................................................... 310
44A ................................................................................................................... 310
40P6 ................................................................................................................. 311
44M1................................................................................................................. 312
iv ATmega162/V
2513F–AVR–12/03