h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 488

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 15 Serial Communication Interface (SCI, IrDA)
Figure 15.11 shows an example of SCI operation for transmission using a multiprocessor format.
Multiprocessor Serial Data Reception: Figure 15.12 shows a sample flowchart for
multiprocessor serial reception.
The following procedure should be used for multiprocessor serial data reception.
Rev. 4.00 Jun 06, 2006 page 434 of 1004
REJ09B0301-0400
TDRE
TEND
TXI interrupt
request
generated
1
Start
bit
0
Data written to TDR
and TDRE flag cleared to
0 in TXI interrupt handling
routine
(Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit)
Figure 15.11 Example of SCI Operation in Transmission
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