Specifications

RX62N Group, RX621 Group RIIC Multi-Master Communication
R01AN0630EJ0100 Rev.1.00 Page 19 of 23
Sep 27, 2011
3.7.13 NACK Interrupt Handling
Figure 14 shows the flowchart for NACK interrupt handling.
NACK Detection
Interrupt Handling
return
Disable TXI interrupt
Disable TEI interrupt
Request issuing
a stop condition
Master mode
communication in
progress?
Read receive data
(dummy read)
Yes
No
Set the master mode
communication result to
NACK detected
Figure 14 NACK Interrupt Handling