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983
Serial Communications Instructions
Section 3-24
The following programming example shows the instructions used to con-
stantly or periodically execute PMCR(260) to read data through a single
receive operation.
Set
m words
Data that was set will be
transfer if new data is not
successfully received.
Receive
buffer
Protocol
Macro
Execution
Flag
Communica-
tions Port En-
abled Flag
Always ON
Flag
Error
Recv
Error
Recv
Receive Area Not Held
Receive Area Held
Communications sequence
Receive buffer
Cleared
Receive area (starting at
R+1)
Cleared data
(all zeros)
stored.
Communications sequence
Receive buffer
Cleared and
previous
data stored
Receive area (starting at
R+1)
Set data stored if no new
data has been received
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...