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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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ATMEGA640 bảng dữ liệu(PDF) 341 Page - Microchip Technology |
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ATMEGA640 bảng dữ liệu(HTML) 341 Page - Microchip Technology |
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341 / 436 page  341 ATmega640/V-1280/V-1281/V-2560/V-2561/V [DATASHEET] DS40002211A 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 corresponding section for Fuse and Lock bits, Calibration and Signature bytes and Page size. 6. See http://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 30-11 on page 342. Load EEPROM Memory Page (page access) $C1 $00 0000 000aa data byte in Read Instructions Read Program Memory, High byte $28 adr MSB adr LSB high data byte out Read Program Memory, Low byte $20 adr MSB adr LSB low data byte out Read EEPROM Memory $A0 0000 aaaa aaaa aaaa data byte out Read Lock bits $58 $00 $00 data byte out Read Signature Byte $30 $00 0000 000aa data byte out Read Fuse bits $50 $00 $00 data byte out Read Fuse High bits $58 $08 $00 data byte out Read Extended Fuse Bits $50 $08 $00 data byte out Read Calibration Byte $38 $00 $00 data byte out Write Instructions Write Program Memory Page $4C adr MSB adr LSB $00 Write EEPROM Memory $C0 0000 aaaa aaaa aaaa data byte in Write EEPROM Memory Page (page access) $C2 0000 aaaa aaaa 00 $00 Write Lock bits $AC $E0 $00 data byte in Write Fuse bits $AC $A0 $00 data byte in Write Fuse High bits $AC $A8 $00 data byte in Write Extended Fuse Bits $AC $A4 $00 data byte in Table 30-17. Serial Programming Instruction Set (Continued) Instruction/Operation Instruction Format Byte 1 Byte 2 Byte 3 Byte 4 |
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