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Section 13 Serial Communication Interface
(LSB)
1
Serial
0
D0
data
Start
bit
1 bit
Figure 13.2 Data Format in Asynchronous Communication
Communication Formats: Table 13.10 shows the 12 communication formats that can be selected
in asynchronous mode. The format is selected by settings in SMR.
Rev. 4.00 Jan 26, 2006 page 510 of 938
REJ09B0276-0400
D1
D2
D3
Transmit or receive data
7 or 8 bits
One unit of data (character or frame)
(Example: 8-Bit Data with Parity and 2 Stop Bits)
(MSB)
D4
D5
D6
D7
Idle (mark) state
1
0/1
1
1
Parity
Stop bit(s)
bit
1 bit,
1 or 2 bits
or
none
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