467
Figure 13-6 shows an example of the operation for transmission in asynchronous mode.
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 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 13-6 Example of Operation in Transmission in Asynchronous Mode
(Example with 8-Bit Data, Parity, One Stop Bit)
Summary of Contents for H8S/2645
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