288
Sender
Serial
data
Receiver A
(ID = 01)
(ID = 02)
Receiver B
H'01
ID transmission cycle
(specifying the receiver)
Data transmission cycle
(sending data to the receiver
specified by the ID)
MPB: Multiprocessor bit
(MPB = 1)
(MPB = 0)
H'AA
Communication line
(ID = 03)
Receiver C
(ID = 04)
Receiver D
Figure 14.16 Example of Inter-Processor Communication Using Multiprocessor Format
(Sending Data H'AA to Receiver A)
There is a choice of four data transfer formats. If a multiprocessor format is specified, the parity
bit specification is invalid. See table 14.11 for details.
For details on the clock used in multiprocessor communication, see section 14.4, Operation in
Asynchronous Mode.
Multiprocessor Transmitting: Figure 14.17 shows an example of a flowchart for multiprocessor
data transmission. This procedure should be followed for multiprocessor data transmission after
initializing SCI3.
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