HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 470

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Figure 12.11 shows an example of SCI operation for transmission using the multiprocessor
format.
456
request generated
TDRE
TEND
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.
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 service
routine
D0
Figure 12.11 Example of SCI Operation in Transmission
D1
1 frame
Data
D7
Multi-
proce-
ssor
bit
0/1
TXI interrupt
request generated
Stop
bit
1
Start
bit
0
D0
D1
Data
D7
Multi-
proces-
sor bit
0/1
TEI interrupt
request generated
Stop
bit
1
Idle state
(mark state)
1