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已有 107 次閱讀 19-11-22 04:37 PM |個人分類:electronic component|關鍵詞:technology,electronic

Accept POLLING: When the internally-timed create cycle has began plus the EEPROM inputs are disabled, admit polling is usually initiated. This includes sending a commence problem adopted via the product handle term.

The read/write bit is representative in the operation wished-for. Only if the internal produce cycle has finished will the EEPROM react by using a zero allowing the go through or compose sequence to carry on.

Study operations are initiated exactly the same way as compose functions using the exception that the read/write choose bit within the gadget address phrase is set to at least one. You will find two go through functions: byte read through and sequential examine.

BYTE Read: A byte go through is initiated having a get started condition followed by a 7-bit knowledge term handle along with a substantial read through bit. The AT24C11 will react with an admit then serially output 8 details bits. The microcontroller isn't going to react with a zero but does deliver a next end problem.

SEQUENTIAL Read through: Sequential reads are initiated the identical being a byte study. After the micro- controller receives an 8-bit facts phrase, it responds having an admit. Providing the EEPROM receives an accept, it is going to continue on to increment the data phrase address and serially clock out sequential facts words and phrases.

In the event the memory address limit is reached, the information word handle will “roll over” as well as sequential read through will go on. The sequential read through operation is terminated once the microcontroller isn't going to answer with an input zero but does make a following quit affliction .

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