AK6003A Datasheet, PDF (8/17 Pages) Asahi Kasei Microsystems – SOFTWARE WRITE PROTECT I2C BUS 2KBIT EEPROM

ASAHI KASEI
[AK6003A]
ACKNOWLEDGE POLLING
Since the device will not acknowledge during the internal write cycle, this can be used to determine
when the cycle is complete. This feature (ACK polling) can be used to maximize bus troughtput.
Once the stop condition is issued to indicate the end of the host's write operation the AK6003A
initiates the internal write cycle. ACK polling can be initiated immediately. This involves issuing the
start condition followed by the slave address for a write operation. If the AK6003A is still busy with
the write operation no ACK will be returned. If the AK6003A has completed the write operation an
ACK will be returned and the host can then proceed with the next read or write operation.
When the write operation is executed after the ACK polling, the host can issue the byte address
consecutively after the ACK is returned. When the read operation is executed after the ACK polling,
the host should issue the stop condition once.
ACKNOWLEDGE POLLING
DAI03E-01
-8-
1999/10