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Rev. 5.00, 09/03, page 467 of 760
TDRE = 1?
Write transmit data to SCTDR
and set MPBT bit in SCSSR
Transmission ended?
Yes
TEND = 1?
Read TEND bit
in
SCSSR
Clear TDRE bit to 0
Break output?
Yes
Clear TE bit SCSCR to 0
End of transmission
Yes
Read TDRE bit
in
SCSSR
No
No
Yes
No
No
(1)
(2)
(3)
Start of transmission
Set SCPDR and SCPCR
Note: Numbers in parentheses refer to steps in the preceding procedure description.
Figure 14.13 Sample Flowchart for Transmitting Multiprocessor Serial Data