Datasheet

Section 14 Serial Communication Interface (SCI)
Rev.6.00 Sep. 27, 2007 Page 663 of 1268
REJ09B0220-0600
Read TEND flag in SSR
TE = 0
Transition to software
standby mode, etc.
Exit from software
standby mode, etc.
Change
operating mode?
No
All data
transmitted?
TEND = 1?
Yes
Yes
Yes
<Transmission>
No
No
[1]
[3]
[2]
TE = 1Initialization
<Start of transmission>
[1] Data being transmitted is interrupted.
After exiting software standby mode,
etc., normal CPU transmission is
possible by setting TE to 1, reading
SSR, writing TDR, and clearing
TDRE to 0, but note that if the DTC
has been activated, the remaining
data in DTCRAM will be transmitted
when TE and TIE are set to 1.
[2] If TIE and TEIE are set to 1, clear
them to 0 in the same way.
[3] Includes module stop mode.
Figure 14.23 Sample Flowchart for Mode Transition during Transmission