Datasheet

Section 15 Serial Communication Interface (SCI, IrDA)

Rev.7.00 Mar. 18, 2009 page 768 of 1136

REJ09B0109-0700

Figure 15.39 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 cl

earing 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 15.36 Sample Flowchart for Mode Transition during Transmission