HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 673

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Figure 14.11 shows an example of SCI operation for transmission using the multiprocessor
format.
Multiprocessor serial data reception: Figure 14.12 shows a sample flowchart for
multiprocessor serial reception.
The following procedure should be used for multiprocessor serial data reception.
request generated
TDRE
TEND
TXI interrupt
1
Start
bit
0
(Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit)
Data written to TDR
and TDRE flag cleared to
0 in TXI interrupt handling
routine
D0
Figure 14.11 Example of SCI Transmit Operation
D1
1 frame
Data
D7
Multi-
proces-
sor
bit
0/1
TXI interrupt
request generated
Stop
bit
1
Section 14 Serial Communication Interface (SCI)
Start
bit
0
Rev.6.00 Sep. 27, 2007 Page 643 of 1268
D0
D1
Data
D7
Multi-
proces-
sor bit
0/1
TEI interrupt
request generated
REJ09B0220-0600
Stop
bit
1
Idle state
(mark state)
1