SH7080 Datasheet, PDF (820/1644 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 15 Serial Communication Interface (SCI)
Figure 15.5 shows an example of the operation for transmission.
1
Serial
data
Start
bit
Data
Parity Stop Start
bit bit bit
Data
Parity Stop
bit bit
0 D0 D1
D7 0/1 1 0 D0 D1
D7 0/1 1
1
Idle state
(mark state)
TDRE
TEND
TXI interrupt
TXI interrupt
request
request
Data written to SCTDR
and TDRE flag cleared to 0
by TXI interrupt handler
One frame
TEI interrupt
request
Figure 15.5 Example of Transmission in Asynchronous Mode
(8-Bit Data, Parity, One Stop Bit)
Rev. 3.00 May 17, 2007 Page 762 of 1582
REJ09B0181-0300