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ManualsBrandsSTMICROELECTRONICS ManualsIntegrated Circuits (ICs)SOIC 8 256 kBit 32 K x 8
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Instructions M24256-BW M24256-BR M24256-BF M24256-DR M24256-DF
16/40 Doc ID 6757 Rev 30
5.1.2 Page Write
The Page Write mode allows up to 64 bytes to be written in a single Write cycle, provided
that they are all located in the same page in the memory: that is, the most significant
memory address bits, A15/A6, are the same. If more bytes are sent than will fit up to the end
of the page, a “roll-over” occurs, i.e. the bytes exceeding the page end are written on the
same page, from location 0.
The bus master sends from 1 to 64 bytes of data, each of which is acknowledged by the
device if Write Control (WC
) is low. If Write Control (WC) is high, the contents of the
addressed memory location are not modified, and each data byte is followed by a NoAck, as
shown in Figure 8. After each transferred byte, the internal page address counter is
incremented.
The transfer is terminated by the bus master generating a Stop condition.
Figure 8. Write mode sequences with WC
= 1 (data write inhibited)