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ATmega88 Datasheet(PDF) 296 Page - ATMEL Corporation |
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ATmega88 Datasheet(HTML) 296 Page - ATMEL Corporation |
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296 / 340 page  296 7530H–AVR–02/09 ATmega48/88/168 Automotive Figure 25-11. Serial Programming Waveforms Table 25-17. Serial Programming Instruction Set Instruction Instruction Format Operation Byte 1 Byte 2 Byte 3 Byte4 Programming Enable 1010 1100 0101 0011 xxxx xxxx xxxx xxxx Enable Serial Programming after RESET goes low. Chip Erase 1010 1100 100x xxxx xxxx xxxx xxxx xxxx Chip Erase EEPROM and Flash. Read Program Memory 0010 H000 000a aaaa bbbb bbbb oooo oooo Read H (high or low) data o from Program memory at word address a:b. Load Program Memory Page 0100 H000 000x xxxx xxbb bbbb iiii iiii Write H (high or low) data i to Program Memory page at word address b. Data low byte must be loaded before Data high byte is applied within the same address. Write Program Memory Page 0100 1100 000a aaaa bbxx xxxx xxxx xxxx Write Program Memory Page at address a:b. Read EEPROM Memory 1010 0000 000x xxaa bbbb bbbb oooo oooo Read data o from EEPROM memory at address a:b. Write EEPROM Memory 1100 0000 000x xxaa bbbb bbbb iiii iiii Write data i to EEPROM memory at address a:b. Load EEPROM Memory Page (page access) 1100 0001 0000 0000 0000 00bb iiii iiii Load data i to EEPROM memory page buffer. After data is loaded, program EEPROM page. Write EEPROM Memory Page (page access) 1100 0010 00xx xxaa bbbb bb00 xxxx xxxx Write EEPROM page at address a:b. Read Lock bits 0101 1000 0000 0000 xxxx xxxx xxoo oooo Read Lock bits. “0” = programmed, “1” = unprogrammed. See Table 25-1 on page 278 for details. Write Lock bits 1010 1100 111x xxxx xxxx xxxx 11ii iiii Write Lock bits. Set bits = “0” to program Lock bits. See Table 25-1 on page 278 for details. MSB MSB LSB LSB SERIAL CLOCK INPUT (SCK) SERIAL DATA INPUT (MOSI) (MISO) SAMPLE SERIAL DATA OUTPUT |
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