HD64F2638F20J Datasheet, PDF (531/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 13 Serial Communication Interface (SCI)
Figure 13-6 shows an example of the operation for transmission in asynchronous mode.
Start
Data
Parity Stop Start
Data
Parity Stop
1 bit
bit bit bit
bit bit
1
0 D0 D1
D7 0/1 1 0 D0 D1
D7 0/1
1
Idle state
(mark state)
TDRE
TEND
TXI interrupt
Data written to TDR and
request generated TDRE flag cleared to 0 in
TXI interrupt service routine
TXI interrupt
request generated
TEI interrupt
request generated
1 frame
Figure 13-6 Example of Operation in Transmission in Asynchronous Mode
(Example with 8-Bit Data, Parity, One Stop Bit)
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 481 of 1458