h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 508

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 13 Serial Communication Interface (SCI)
Figure 13.11 shows an example of SCI operation for transmission using the multiprocessor
format.
Multiprocessor serial data reception: Figure 13.12 shows a sample flowchart for multiprocessor
serial reception.
The following procedure should be used for multiprocessor serial data reception.
Rev. 5.00 Sep 22, 2005 page 482 of 1136
REJ09B0257-0500
request generated
TDRE
TEND
TXI interrupt
1
Start
bit
0
(Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit)
Figure 13.11 Example of SCI Operation in Transmission
Data written to TDR
and TDRE flag cleared to
0 in TXI interrupt service
routine
D0
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