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ATMEGA1281V データシート(PDF) 33 Page - ATMEL Corporation |
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ATMEGA1281V データシート(HTML) 33 Page - ATMEL Corporation |
33 / 40 page 33 2549PS–AVR–10/2012 ATmega640/1280/1281/2560/2561 Problem Fix/Workaround There are two application work-arounds, where selecting one of them, will be omitting the issue: - Replace IN and OUT with LD/LDS/LDD and ST/STS/STD instructions. - Use internal RAM for stack pointer. 6. EEPROM read from application code does not work in Lock Bit Mode 3 When the Memory Lock Bits LB2 and LB1 are programmed to mode 3, EEPROM read does not work from the application code. Problem Fix/Workaround Do not set Lock Bit Protection Mode 3 when the application code needs to read from EEPROM. 11.13 ATmega2561 rev. F Not sampled. 11.14 ATmega2561 rev. E No known errata. 11.15 ATmega2561 rev. D Not sampled. 11.16 ATmega2561 rev. C • High current consumption in sleep mode. 1. High current consumption in sleep mode If a pending interrupt cannot wake the part up from the selected sleep mode, the current consumption will increase during sleep when executing the SLEEP instruction directly after a SEI instruction. Problem Fix/Workaround Before entering sleep, interrupts not used to wake the part from the sleep mode should be disabled. 11.17 ATmega2561 rev. B Not sampled. 11.18 ATmega2561 rev. A • Non-Read-While-Write area of flash not functional • Part does not work under 2.4 Volts • Incorrect ADC reading in differential mode • Internal ADC reference has too low value • IN/OUT instructions may be executed twice when Stack is in external RAM • EEPROM read from application code does not work in Lock Bit Mode 3 |
同様の部品番号 - ATMEGA1281V |
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同様の説明 - ATMEGA1281V |
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