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ATmega32A Datasheet(PDF) 349 Page - ATMEL Corporation

Part # ATmega32A
Description  8-bit Microcontroller with 32K Bytes In-System Programmable Flash
PDF  352 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega32A Datasheet(HTML) 349 Page - ATMEL Corporation

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8155B–AVR–07/09
ATmega32A
22.5
Prescaling and Conversion Timing ................................................................211
22.6
Changing Channel or Reference Selection ...................................................214
22.7
ADC Noise Canceler .....................................................................................216
22.8
ADC Conversion Result .................................................................................220
22.9
Register Description ......................................................................................222
23
JTAG Interface and On-chip Debug System ...................................... 227
23.1
Features ........................................................................................................227
23.2
Overview ........................................................................................................227
23.3
TAP – Test Access Port ................................................................................227
23.4
TAP Controller ...............................................................................................229
23.5
Using the Boundary-scan Chain ....................................................................230
23.6
Using the On-chip Debug System .................................................................230
23.7
On-chip Debug Specific JTAG Instructions ...................................................231
23.8
Using the JTAG Programming Capabilities ...................................................232
23.9
Register Description ......................................................................................232
23.10
Bibliography ...................................................................................................232
24
IEEE 1149.1 (JTAG) Boundary-scan ................................................... 233
24.1
Features ........................................................................................................233
24.2
Overview ........................................................................................................233
24.3
Data Registers ...............................................................................................233
24.4
Boundary-scan Specific JTAG Instructions ...................................................235
24.5
Boundary-scan Chain ....................................................................................236
24.6
ATmega32A Boundary-scan Order ...............................................................246
24.7
Boundary-scan Description Language Files ..................................................251
24.8
Register Description ......................................................................................251
25
Boot Loader Support – Read-While-Write Self-Programming ......... 252
25.1
Features ........................................................................................................252
25.2
Overview ........................................................................................................252
25.3
Application and Boot Loader Flash Sections .................................................252
25.4
Read-While-Write and no Read-While-Write Flash Sections ........................253
25.5
Boot Loader Lock Bits ...................................................................................255
25.6
Entering the Boot Loader Program ................................................................256
25.7
Addressing the Flash during Self-Programming ............................................257
25.8
Self-Programming the Flash ..........................................................................258
25.9
Register Description ......................................................................................264



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