Renesas H8S/2319 series Hardware Manual page 496

Figure 12-11 shows an example of SCI operation for transmission using the multiprocessor
format.
Start
1 bit
0 D0
TDRE
TEND
TXI interrupt Data written to TDR
request generated and TDRE flag cleared to
0 in TXI interrupt handling
routine
(Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit)
• Multiprocessor serial data reception
Figure 12-12 shows a sample flowchart for multiprocessor serial reception.
The following procedure should be used for multiprocessor serial data reception.
Rev. 5.00, 12/03, page 466 of 1088
Multi-
proces-
Data
sor
bit
D1 D7 0/1
1 frame
Figure 12-11 Example of SCI Transmit Operation
Stop Start
bit bit
1 0 D0 D1
TXI interrupt
request generated
Multi-
Data Stop
proces-
sor bit bit
Idle state
D7 0/1 1
(mark state)
TEI interrupt
request generated
1