Hitachi H8S/2378, H8S/2378R Series Hardware Manual page 748

Figure 15.39 shows a sample flowchart for mode transition during reception.
<Transmission>
All data
transmitted?
Yes
Read TEND flag in SSR
TEND = 1
Yes
TE = 0
Transition to software
standby mode
Exit from software
standby mode
Change
operating mode?
Yes
Initialization
<Start of transmission>
Figure 15.36 Sample Flowchart for Mode Transition during Transmission
Rev. 1.0, 09/01, page 704 of 904
No [1] [1] Data being transmitted is interrupted.
No
[2] If TIE and TEIE are set to 1, clear
[2]
[3] Includes module stop mode.
[3]
No
TE = 1
After exiting software standby mode,
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.
them to 0 in the same way.