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ATmega169P Datasheet(PDF) 303 Page - ATMEL Corporation |
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ATmega169P Datasheet(HTML) 303 Page - ATMEL Corporation |
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303 / 393 page  303 8018N–AVR–08/09 ATmega169P J. End Page Programming 1. 1. Set XA1, XA0 to “10”. This enables command loading. 2. Set DATA to “0000 0000”. This is the command for No Operation. 3. Give XTAL1 a positive pulse. This loads the command, and the internal write signals are reset. Figure 27-2. Addressing the Flash Which is Organized in Pages (1) Note: 1. PCPAGE and PCWORD are listed in Table 27-7 on page 298. Figure 27-3. Programming the Flash Waveforms (1) Note: 1. “XX” is don’t care. The letters refer to the programming description above. PROGRAM MEMORY WORD ADDRESS WITHIN A PAGE PAGE ADDRESS WITHIN THE FLASH INSTRUCTION WORD PAGE PCWORD[PAGEMSB:0]: 00 01 02 PAGEEND PAGE PCWORD PCPAGE PCMSB PAGEMSB PROGRAM COUNTER RDY/BSY WR OE RESET +12V PAGEL BS2 0x10 ADDR. LOW ADDR. HIGH DATA DATA LOW DATA HIGH ADDR. LOW DATA LOW DATA HIGH XA1 XA0 BS1 XTAL1 XX XX XX AB CD E B C D E G H F |
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