
Section 10 Serial Communication Interface
Rev. 6.00 Sep 12, 2006 page 333 of 526
REJ09B0326-0600
Start
End
Read bits OER
and FER in SSR
2
Set bit MPIE to 1
in SCR3
1
3
4
5
4
Read bit RDRF
in SSR
Read receive
data in RDR
Clear bit RE to
0 in SCR3
Yes
OER + FER = 1?
No
No
RDRF = 1?
Yes
Continue data
reception?
No
Yes
Read bits OER
and FER in SSR
No
Own ID?
Yes
Read bit RDRF
in SSR
Yes
OER + FER = 1?
No
Read receive
data in RDR
No
RDRF = 1?
Yes
Receive error
processing
(A)
Set bit MPIE to 1 in SCR3.
Read bits OER and FER in the serial
status register (SSR) to determine if
there is an error. If a receive error has
occurred, execute receive error processing.
Read SSR and check that bit RDRF is
set to 1. If it is, read the receive data in
RDR and compare it with this receiver's
own ID. If the ID is not this receiver's,
set bit MPIE to 1 again. When the RDR
data is read, bit RDRF is cleared to 0
automatically.
Read SSR and check that bit RDRF is
set to 1, then read the data in RDR.
If a receive error has occurred, read bits
OER and FER in SSR to identify the error,
and after carrying out the necessary error
processing, ensure that bits OER and FER
are both cleared to 0. Reception cannot be
resumed if either of these bits is set to 1.
In the case of a framing error, a break can
be detected by reading the value of the
RXD pin.
1.
2.
3.
4.
5.
Figure 10.24 Example of Multiprocessor Data Reception Flowchart
Содержание F-ZTAT H8/3642A Series
Страница 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Страница 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Страница 21: ...Rev 6 00 Sep 12 2006 page xix of xx Appendix E Product Code Lineup 522 Appendix F Package Dimensions 524 ...
Страница 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Страница 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Страница 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Страница 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Страница 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Страница 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Страница 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...