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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATmega325P датащи(PDF) 290 Page - ATMEL Corporation |
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ATmega325P датащи(HTML) 290 Page - ATMEL Corporation |
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290 / 364 page  290 8023F–AVR–07/09 ATmega325P/3250P Notes: 1. Not all instructions are applicable for all parts 2. a = address 3. Bits are programmed ‘0’, unprogrammed ‘1’. 4. To ensure future compatibility, unused Fuses and Lock bits should be unprogrammed (‘1’) . 5. Refer to the correspondig section for Fuse and Lock bits, Calibration and Signature bytes and Page size. 6. Instructions accessing program memory use word address. This address may be random within the page range. 7. See htt://www.atmel.com/avr for Application Notes regarding programming and programmers. If the LSB in RDY/BSY data byte out is ‘1’, a programming operation is still pending. Wait until this bit returns ‘0’ before the next instruction is carried out. Within the same page, the low data byte must be loaded prior to the high data byte. After data is loaded to the page buffer, program the EEPROM page, see Figure 25-12. Figure 25-12. Serial Programming Instruction example 25.7.2 SPI Serial Programming Characteristics For characteristics of the SPI module, see ”SPI Timing Characteristics” on page 310. 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 |
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