Datasheet

Section 13 Serial Communication Interface (SCI)
Rev. 3.00 Sep. 28, 2009 Page 315 of 710
REJ09B0384-0300
TE bit
SCK
output pin
TxD
output pin
Port input/output
Port
input/output
Port
input/output
High output*Marking output
Transmission start
Transmission end
Transition to
software standby
mode
Software standby
mode cancelled
SCI TxD output
Port Port
SCI
TxD output
Last TxD bit retained
Note: Initialized in software standby mode
Figure 13.36 Pin States during Transmission in Clock Synchronous Mode
(Internal Clock)
Reception: Before making the transition to module stop or software standby, stop reception (RE =
0). RSR, RDR, and SSR are reset. If transition is made during data reception, the data being
received will be invalid.
To receive data in the same reception mode after mode cancellation, set RE to 1, and then start
reception. To receive data in a different reception mode, initialize the SCI first.