HD6432670 Hitachi, HD6432670 Datasheet - Page 752

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Rev. 2.0, 04/02, page 706 of 906
Figure 15.39 shows a sample flowchart for mode transition during reception.
Read TEND flag in SSR
<Start of transmission>
Transition to software
Figure 15.36 Sample Flowchart for Mode Transition during Transmission
Exit from software
operating mode?
<Transmission>
standby mode
standby mode
Yes
Yes
Yes
transmitted?
Initialization
TEND = 1
Change
All data
TE = 0
No
No
No
[1]
[2]
[3]
TE = 1
[1] Data being transmitted is interrupted.
[2] If TIE and TEIE are set to 1, clear
[3] Includes module stop mode.
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.