Datasheet

MB85RC256V
DS501-00017-3v0-E 11
■ SOFTWARE RESET SEQUENCE OR COMMAND RETRY
In case the malfunction has occurred after power on, the master side stopped the I
2
C communication during
processing, or unexpected malfunction has occurred, execute the following (1) software recovery sequence
just before each command, or (2) retry command just after failure of each command.
(1) Software Reset Sequence
Since the slave side may be outputting “L” level, do not force to drive “H” level, when the master side drives
the SDA port. This is for preventing a bus conflict. The additional hardware is not necessary for this software
reset sequence.
(2) Command Retry
Command retry is useful to recover from failure response during I
2
C communication.
SCL
SDA
9 set of “Start Conditions and one “1” data”
Send “Start Condition and one data “1”” .
Repeat these 9 times just before Write or Read command.
Hi-Z state by pull up Resistor