Datasheet

Section 12 Serial Communication Interface (SCI)
Rev.7.00 Feb. 14, 2007 page 468 of 1108
REJ09B0089-0700
Figure 12.6 shows an example of the operation for transmission in asynchronous mode.
TDRE
TEND
0
1 frame
D0 D1 D7 0/11 0D0D1 D70/1 1
1 1
DataStart
bit
Parity
bit
Stop
bit
Start
bit
Data Parity
bit
Stop
bit
TXI interrupt
request generated
Data written to TDR and
TDRE flag cleared to 0 in
TXI interrupt handling routine
TEI interrupt
request generated
Idle state
(mark state)
TXI interrupt
request generated
Figure 12.6 Example of Transmit Operation in Asynchronous Mode
(Example with 8-Bit Data, Parity, One Stop Bit)