Datasheet

Section 17 Serial Communication Interface 3 (SCI3)
Rev. 3.00 Mar. 15, 2006 Page 337 of 526
REJ09B0060-0300
1 frame
Start
bit
Start
bit
Receive
data (ID1)
Receive data
(Data1)
MPB MPB
Stop
bit
Stop
bit
Mark state
(idle state)
1 frame
01D0D1D711 110D0D1 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
01D0D1D711 110
(a) When data does not match this receiver's ID
(b) When data matches this receiver's ID
D0 D1 D7
ID2 Data2ID1
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 17.18 Example of SCI3 Reception Using Multiprocessor Format
(Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit)