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Rev. 2.0, 11/00, page 474 of 1037
TDRE
TEND
0
1 frame
D0
D1
D7
0/1
1
0
D0
D1
D7
0/1
1
1
1
Data
Start
bit
Parity
bit
Stop
bit
Start
bit
Data
Parity
bit
Stop
bit
TXI interrupt
request
generated
Data written to TDR1 and
TDRE flag cleared to 0
in TXI interrupt handling
routine
TEI interrupt request
generated
Idle state
(mark state)
TXI interrupt request
generated
Figure 23.6 Example of Operation in Transmission in Asynchronous Mode
(Example with 8-Bit Data, Parity, One Stop Bit)
Summary of Contents for Hitachi H8S/2191
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