LE2464DXA

www.onsemi.com

11

6)-3. Acknowledge Polling

The Acknowledge Polling operation is used to show if the EEPROM is in an internally timed write cycle or

not. This operation is initiated by the stop condition after inputting write data. This requires the 8-bit

device address word with the 8

cycle. If the EEPROM is busy with the internal write cycle, no acknowledge will be returned. If the

EEPROM has terminated the internal write cycle, it responds with an acknowledge. The terminated write

cycle of the EEPROM can be known by this operation.

Access from master device

During Write

NO ACK

SDA

······

NO ACK

During Write

ACK

No Write

R/W

R/W

R/W

0 1 0

S1

1

W

S2

S0

0 1 0

S1

1

W

S2

S0

0 1 0

S1

1

W

S2

S0