Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

ATmega16A Datasheet(PDF) 280 Page - ATMEL Corporation

Part # ATmega16A
Description  8-bit Microcontroller with 16K Bytes In-System Programmable Flash
PDF  352 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega16A Datasheet(HTML) 280 Page - ATMEL Corporation

Back Button ATmega16A Datasheet HTML 276Page - ATMEL Corporation ATmega16A Datasheet HTML 277Page - ATMEL Corporation ATmega16A Datasheet HTML 278Page - ATMEL Corporation ATmega16A Datasheet HTML 279Page - ATMEL Corporation ATmega16A Datasheet HTML 280Page - ATMEL Corporation ATmega16A Datasheet HTML 281Page - ATMEL Corporation ATmega16A Datasheet HTML 282Page - ATMEL Corporation ATmega16A Datasheet HTML 283Page - ATMEL Corporation ATmega16A Datasheet HTML 284Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 280 / 352 page
background image
280
8154B–AVR–07/09
ATmega16A
Figure 26-8. Serial Programming Instruction example
26.9
SPI Serial Programming Characteristics
For characteristics of the SPI module, see “SPI Timing Characteristics” on page 298.
26.10 Programming via the JTAG Interface
Programming through the JTAG interface requires control of the four JTAG specific pins: TCK,
TMS, TDI and TDO. Control of the reset and clock pins is not required.
To be able to use the JTAG interface, the JTAGEN Fuse must be programmed. The device is
default shipped with the fuse programmed. In addition, the JTD bit in MCUCSR must be cleared.
Alternatively, if the JTD bit is set, the External Reset can be forced low. Then, the JTD bit will be
cleared after two chip clocks, and the JTAG pins are available for programming. This provides a
means of using the JTAG pins as normal port pins in running mode while still allowing In-System
Programming via the JTAG interface. Note that this technique can not be used when using the
JTAG pins for Boundary-scan or On-chip Debug. In these cases the JTAG pins must be dedi-
cated for this purpose.
As a definition in this datasheet, the LSB is shifted in and out first of all Shift Registers.
26.10.1
Programming Specific JTAG Instructions
The instruction register is 4-bit wide, supporting up to 16 instructions. The JTAG instructions
useful for Programming are listed below.
Byte 1
Byte 2
Byte 3
Byte 4
Adr LSB
Bit 15 B
0
Serial Programming Instruction
Program Memory/
EEPROM Memory
Page 0
Page 1
Page 2
Page N-1
Page Buffer
Write Program Memory Page/
Write EEPROM Memory Page
Load Program Memory Page (High/Low Byte)/
Load EEPROM Memory Page (page access)
Byte 1
Byte 2
Byte 3
Byte 4
Bit 15 B
0
Adr MSB
Page Offset
Page Number
Adr M
MS
SB
A
A
Adrr L
LSB
B



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com