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AT90CAN128
4250E–CAN–12/04
Boundary-scan IEEE 1149.1 (JTAG) ............................................... 290
Features............................................................................................................ 290
System Overview.............................................................................................. 290
Data Registers.................................................................................................. 290
Boundary-scan Specific JTAG Instructions ...................................................... 292
Boundary-scan Related Register in I/O Memory.............................................. 293
Boundary-scan Chain....................................................................................... 294
AT90CAN128 Boundary-scan Order.................................................................305
Boundary-scan Description Language Files..................................................... 310
Boot Loader Support – Read-While-Write Self-Programming...... 311
Features............................................................................................................ 311
Application and Boot Loader Flash Sections.................................................... 311
Read-While-Write and No Read-While-Write Flash Sections........................... 311
Boot Loader Lock Bits....................................................................................... 314
Entering the Boot Loader Program................................................................... 315
Addressing the Flash During Self-Programming .............................................. 317
Self-Programming the Flash............................................................................. 318
Memory Programming ...................................................................... 325
Program and Data Memory Lock Bits............................................................... 325
Fuse Bits........................................................................................................... 326
Signature Bytes ................................................................................................ 328
Calibration Byte ................................................................................................ 328
Parallel Programming Overview........................................................................329
Parallel Programming....................................................................................... 331
SPI Serial Programming Overview....................................................................337
SPI Serial Programming................................................................................... 338
JTAG Programming Overview...........................................................................342
Electrical Characteristics
(1)
.............................................................. 355
Absolute Maximum Ratings*............................................................................. 355
DC Characteristics............................................................................................ 356
External Clock Drive Characteristics .................................................................358
Two-wire Serial Interface Characteristics..........................................................359
SPI Timing Characteristics ................................................................................361
CAN Physical Layer Characteristics................................................................. 362
ADC Characteristics ......................................................................................... 363
External Data Memory Characteristics..............................................................365
Parallel Programming Characteristics ...............................................................371
AT90CAN128 Typical Characteristics............................................. 374
Active Supply Current....................................................................................... 374
Idle Supply Current........................................................................................... 377
Power-down Supply Current............................................................................. 379
Power-save Supply Current.............................................................................. 380