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H8S/2240 数据表(PDF) 491 Page - Renesas Technology Corp

部件名 H8S/2240
功能描述  Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
PDF  818 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8S/2240 数据表(HTML) 491 Page - Renesas Technology Corp

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Section 12 Serial Communication Interface (SCI)
Rev.3.00 Mar. 26, 2007 Page 449 of 772
REJ09B0355-0300
Figure 12.11 shows an example of SCI operation for transmission using the multiprocessor format.
TDRE
TEND
0
1 frame
D0
D1
D7
0/1
1
0
D0
D1
D7
0/1
1
1
1
Data
Start
bit
Multi-
proce-
ssor
bit
Stop
bit
Start
bit
Data
Multi-
proces-
sor bit
Stop
bit
TXI interrupt
request generated
Data written to TDR
and TDRE flag cleared to
0 in TXI interrupt service
routine
TEI interrupt
request generated
Idle state
(mark state)
TXI interrupt
request generated
Figure 12.11 Example of SCI Operation in Transmission
(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.



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