Rev. 1.0, 03/01, page 189 of 280
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
1
D0
D1
D7
1
1
1
1
0
D0
D1
D7
ID1
0
Serial
data
MPIE
RDRF
RDR
value
RDR
value
LSI
operation
RXI interrupt
request
MPIE cleared
to 0
User
processing
RDRF flag
cleared
to 0
RXI interrupt request
is not generated, and
RDR retains its state
RDR data read
When data is not
this station'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
1
D0
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 interrupt
request
MPIE cleared
to 0
User
processing
RDRF flag
cleared
to 0
RXI interrupt
request
RDRF flag
cleared
to 0
RDR data read
When data is
this station's
ID, reception
is continued
RDR data read
MPIE set to 1
again
Figure 13-18 Example of SCI3 Operation in Reception Using Multiprocessor Format
(Example with 8-Bit Data, MultiprocessorBit, One Stop Bit)
Содержание H8/3670F-ZTAT HD64F3670
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