HD64336901G Renesas Technology, HD64336901G Datasheet - Page 249
HD64336901G
Manufacturer Part Number
HD64336901G
Description
(HD64xxx Series) 16-BIT MICROCONTROLLER
Manufacturer
Renesas Technology
Datasheet
1.HD64336901G.pdf
(408 pages)
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Serial
data
MPIE
RDRF
RDR
value
LSI
operation
User
processing
RDR
value
Serial
data
MPIE
RDRF
LSI
operation
User
processing
Figure 14.19 Example of SCI3 Reception Using Multiprocessor Format
1
1
(Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit)
Start
Start
bit
bit
0
0
D0
D0
ID1
D1
D1
(a) When data does not match this receiver's ID
RXI interrupt
request
MPIE cleared
to 0
RXI interrupt
request
MPIE cleared
to 0
data (ID1)
data (ID2)
Receive
Receive
1 frame
1 frame
(b) When data matches this receiver's ID
D7
D7
MPB
MPB
1
1
RDRF flag
cleared
to 0
RDR data read
RDRF flag
cleared
to 0
RDR data read
Stop
Stop
bit
1
bit
1
Start
Start
bit
0
bit
0
D0
D0
1 frame
1 frame
Receive data
D1
D1
Receive data
ID2
(Data1)
(Data2)
When data is not
this station's ID,
MPIE is set to 1
again
When data is
this station's
ID, reception
is continued
RXI interrupt
request
Rev. 1.00, 11/03, page 221 of 376
ID1
D7
D7
MPB
MPB
0
0
Stop
Stop
RDRF flag
cleared
to 0
bit
bit
1
1
RXI interrupt request
is not generated, and
RDR retains its state
RDR data read
MPIE set to 1
again
Mark state
Mark state
(idle state)
(idle state)
Data2
1
1
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