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HD6433644R Datasheet(PDF) 355 Page - Renesas Technology Corp

Part # HD6433644R
Description  8-Bit Single-Chip Microcomputer
PDF  549 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6433644R Datasheet(HTML) 355 Page - Renesas Technology Corp

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Section 10 Serial Communication Interface
Rev. 6.00 Sep 12, 2006 page 335 of 526
REJ09B0326-0600
1 frame
Start
bit
Start
bit
Receive
data (ID1)
Receive data
(Data1)
MPB
MPB
Stop
bit
Stop
bit
Mark state
(idle state)
1 frame
0
1D0
D1
D7
1
1
1
1
0D0
D1
D7
ID1
0
Serial
data
MPIE
RDRF
RDR
value
RDR
value
LSI
operation
RXI request
MPIE cleared
to 0
User
processing
RDRF cleared
to 0
No RXI request
RDR retains
previous state
RDR data read
When data is not
this receiver's ID,
MPIE is set to 1
again
1 frame
Start
bit
Start
bit
Receive
data (ID2)
Receive data
(Data2)
MPB
MPB
Stop
bit
Stop
bit
Mark state
(idle state)
1 frame
0
1D0
D1
D7
1
1
1
1
0
(a) When data does not match this receiver's ID
(b) When data matches this receiver's ID
D0
D1
D7
ID2
Data2
ID1
0
Serial
data
MPIE
RDRF
LSI
operation
RXI request
MPIE cleared
to 0
User
processing
RDRF cleared
to 0
RXI request
RDRF cleared
to 0
RDR data read
When data is
this receiver's
ID, reception
is continued
RDR data read
MPIE set to 1
again
Figure 10.25 Example of Operation when Receiving using Multiprocessor Format
(8-Bit Data, Multiprocessor Bit, 1 Stop Bit)



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