HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 485
HD6413003RVF
Manufacturer Part Number
HD6413003RVF
Description
microcontroller (MCU)
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6413003RVF.pdf
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Figure 13-13 shows an example of SCI receive operation using a multiprocessor format.
Figure 13-13 Example of SCI Receive Operation (8-Bit Data with Multiprocessor Bit and
MPIE
RDRF
RDR value
MPIE
RDRF
RDR value
1
1
Start
bit
Start
bit
0
0
Data (ID1)
Data (ID2)
D0
D0
ID1
D1
D1
RXI request
(multiprocessor
interrupt), MPIE = 0
RXI request
(multiprocessor
interrupt), MPIE = 0
a. Own ID does not match data
D7
D7
b. Own ID matches data
One Stop Bit)
MPB
MPB
1
1
467
Stop
bit
Stop
bit
RXI handler reads
RDR data and clears
RDRF flag to 0
RXI interrupt handler
reads RDR data and
clears RDRF flag to 0
1
1
Start
bit
Start
bit
0
0
Data (data1)
Data (data2)
D0
D0
ID2
D1
D1
Own ID, so receiving
continues, with data
received by RXI
interrupt handler
Not own ID, so
MPIE bit is set
to 1 again
ID1
D7
D7
MPB
MPB
0
0
Stop
bit
Stop
bit
No RXI request,
RDR not updated
1
1
MPIE bit is set
to 1 again
Data 2
Idle (mark)
state
Idle (mark)
state
1
1
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