Datasheet

Section 14 Serial Communication Interface (SCI, IrDA)

Rev.6.00 Mar. 18, 2009 Page 625 of 980

REJ09B0050-0600

Figure 14.39 shows a sample flowchart for mode transition during reception.

Read TEND flag in SSR

TE = 0

Transition to software

standby mode

Exit from software

standby mode

Change

operating mode?

All data

transmitted?

TEND = 1

Yes

[1]

[3]

[2]

TE = 1Initialization

[1] Data being transmitted is interrupted.

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.

[2] If TIE and TEIE are set to 1, clear

them to 0 in the same way.

[3] Includes module stop mode.

Figure 14.36 Sample Flowchart for Mode Transition during Transmission