ATMEGA325-16AJ ATMEL [ATMEL Corporation], ATMEGA325-16AJ Datasheet - Page 344
ATMEGA325-16AJ
Manufacturer Part Number
ATMEGA325-16AJ
Description
8-bit Microcontroller with In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATMEGA325-16AJ.pdf
(347 pages)
- Current page: 344 of 347
- Download datasheet (3Mb)
iv
ATmega325/3250/645/6450
JTAG Interface and On-chip Debug System ................................. 210
IEEE 1149.1 (JTAG) Boundary-scan .............................................. 216
Boot Loader Support – Read-While-Write Self-Programming ..... 242
Memory Programming..................................................................... 256
Electrical Characteristics................................................................ 286
Overview........................................................................................................... 210
Test Access Port – TAP.................................................................................... 210
TAP Controller .................................................................................................. 212
Using the Boundary-scan Chain ....................................................................... 213
Using the On-chip Debug System .................................................................... 213
On-chip Debug Specific JTAG Instructions ...................................................... 214
On-chip Debug Related Register in I/O Memory .............................................. 215
Using the JTAG Programming Capabilities ...................................................... 215
Bibliography ...................................................................................................... 215
Features............................................................................................................ 216
System Overview.............................................................................................. 216
Data Registers .................................................................................................. 216
Boundary-scan Specific JTAG Instructions ...................................................... 218
Boundary-scan Related Register in I/O Memory .............................................. 219
Boundary-scan Chain ....................................................................................... 220
ATmega325/3250/645/6450 Boundary-scan Order.......................................... 229
Boundary-scan Description Language Files ..................................................... 241
Boot Loader Features ....................................................................................... 242
Application and Boot Loader Flash Sections .................................................... 242
Read-While-Write and No Read-While-Write Flash Sections........................... 242
Boot Loader Lock Bits....................................................................................... 244
Entering the Boot Loader Program ................................................................... 245
Addressing the Flash During Self-Programming .............................................. 247
Self-Programming the Flash ............................................................................. 248
Program And Data Memory Lock Bits .............................................................. 256
Fuse Bits........................................................................................................... 257
Signature Bytes ................................................................................................ 259
Calibration Byte ................................................................................................ 259
Parallel Programming Parameters, Pin Mapping, and Commands .................. 259
Serial Programming Pin Mapping ..................................................................... 261
Parallel Programming ....................................................................................... 262
Serial Downloading........................................................................................... 270
Programming via the JTAG Interface ............................................................... 274
Absolute Maximum Ratings*............................................................................. 286
DC Characteristics............................................................................................ 286
External Clock Drive Waveforms ...................................................................... 288
External Clock Drive ......................................................................................... 288
2570A–AVR–09/04
Related parts for ATMEGA325-16AJ
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC AVR MCU 2.4GHZ XCEIVER 64QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA644/AT86RF230 40-DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA644P/AT86RF230 QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA644P/AT86RF230 TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA1281/AT86RF230 64-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA1280/AT86RF230 100TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA1280/AT86RF100-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU, 8BIT, AVR, 16K FLASH, 28PDIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Microcontroller Modules MCU CARD BIGAVR6 100P W/ ATMEGA2560
Manufacturer:
mikroElektronika