D12320VF25IV Datasheet, PDF (697/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 14 Serial Communication Interface (SCI)
<Reception>
Read RDRF flag in SSR
RDRF = 1?
No [1]
Yes
Read receive data in RDR
[1] Receive data being received
becomes invalid.
RE = 0
Transition to software
standby mode, etc.
[2]
Exit from software
standby mode, etc.
Change
No
operating mode?
Yes
Initialization
[2] Includes module stop mode.
RE = 1
<Start of reception>
Figure 14.26 Sample Flowchart for Mode Transition during Reception
Rev.6.00 Sep. 27, 2007 Page 665 of 1268
REJ09B0220-0600