MM24164MN3T datasheet(7/21 Pages) STMICROELECTRONICS

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M24164

that is, the most significant memory address bits

are the same. If more bytes are sent than will fit up

to the end of the row, a condition known as ‘roll-

over’ occurs. This should be avoided, as data

starts to become overwritten in an implementation

dependent way.

The bus master sends from 1 to 16 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 loca-

tion are not modified, and each data byte is fol-

lowed by a NoAck. After each byte is transferred,

the internal byte address counter (the 4 least sig-

nificant address bits only) is incremented. The

transfer is terminated by the bus master generat-

ing a Stop condition.

Figure 8. Write Mode Sequences with WC=0 (data write enabled)

BYTE WRITE

DEV SEL

BYTE ADDR

DATA IN

PAGE WRITE

DEV SEL

BYTE ADDR

DATA IN 1

DATA IN 2

DATA IN 3

AI02804

PAGE WRITE

(cont'd)

WC (cont'd)

DATA IN N

ACK

R/W

ACK

R/W

ACK

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