beautypg.com

Atmega128rfa1 – Rainbow Electronics ATmega128RFA1 User Manual

Page 522

background image

522



8266A-MCU Wireless-12/09

ATmega128RFA1

27.10 SRAM DRT Voltage Measurement ................................................................ 426

27.11 Register Description ....................................................................................... 427

28 JTAG Interface and On-chip Debug System............................... 435

28.1 Features ........................................................................................................... 435

28.2 Overview........................................................................................................... 435

28.3 TAP - Test Access Port .................................................................................... 436

28.4 TAP Controller .................................................................................................. 437

28.5 Using the Boundary-scan Chain....................................................................... 438

28.6 Using the On-chip Debug System .................................................................... 438

28.7 On-chip Debug Specific JTAG Instructions ...................................................... 439

28.8 Using the JTAG Programming Capabilities...................................................... 439

28.9 Bibliography...................................................................................................... 440

28.10 On-chip Debug Related Register in I/O Memory............................................ 440

29 IEEE 1149.1 (JTAG) Boundary-scan............................................ 441

29.1 Features ........................................................................................................... 441

29.2 System Overview ............................................................................................. 441

29.3 Data Registers.................................................................................................. 441

29.4 Boundary-scan Specific JTAG Instructions ...................................................... 443

29.5 Boundary-scan Chain....................................................................................... 444

29.6 Boundary-scan Related Register in I/O Memory.............................................. 447

29.7 Boundary-scan Description Language Files .................................................... 448

29.8 ATmega128RFA1 Boundary-scan Order ......................................................... 448

30 Boot Loader Support – Read-While-Write Self-Programming... 450

30.1 Features ........................................................................................................... 450

30.2 Application and Boot Loader Flash Sections ................................................... 450

30.3 Read-While-Write and No Read-While-Write Flash Sections .......................... 451

30.4 Boot Loader Lock Bits ...................................................................................... 453

30.5 Addressing the Flash During Self-Programming.............................................. 453

30.6 Self-Programming the Flash............................................................................. 454

30.7 Register Description ......................................................................................... 462

31 Memory Programming .................................................................. 464

31.1 Program And Data Memory Lock Bits .............................................................. 464

31.2 Fuse Bits........................................................................................................... 465

31.3 Signature Bytes ................................................................................................ 466

31.4 Calibration Byte ................................................................................................ 467

31.5 Page Size ......................................................................................................... 467