AK9752AE Datasheet, PDF (17/36 Pages) Asahi Kasei Microsystems – Ultra-small IR sensor IC with IC

[AK9752]
11.1.3. Acknowledge
The device transmitting data will release the SDA line after transmitting one byte of data (SDA line state
is “H”). The device receiving data will pull the SDA line to “L” during the next clock. This operation is
called “Acknowledge”. The Acknowledge signal can be used to indicate successful data transfers.
The AK9752 will output an acknowledge signal after receiving a Start Condition and the slave address.
The AK9752 will output an acknowledge signal after receiving each byte, when the write instruction is
transmitted.
The AK9752 will transmit the data stored in the selected address after outputting an acknowledge signal,
when a read instruction is transmitted. Then the AK9752 will monitor the SDA line after releasing the
SDA line. If the master device generates an Acknowledge instead of Stop Condition, the AK9752
transmits an 8-bit data stored in the next address. When the Acknowledge is not generated, transmitting
data is terminated.
SCL of Master
Device.
1
Clock pulse for
Acknowledge
8
9
Data Output of
Transmitter
Data Output
of Receiver
Start Condition
Figure 11.3. Acknowledge
Non-Acknowledge
Acknowledge
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